Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

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ghost commented Jun 3, 2023

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Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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@kouvel@stephentoub@lateralusX@davmason
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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@kouvel

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

@ghost

ghost commented Jun 3, 2023

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Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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@kouvel@stephentoub@lateralusX@davmason
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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@kouvel

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

@ghost

ghost commented Jun 3, 2023

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Tagging subscribers to this area: @mangod9
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Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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@kouvel@stephentoub@lateralusX@davmason
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

@ghost

ghost commented Jun 3, 2023

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Tagging subscribers to this area: @mangod9
See info in area-owners.md if you want to be subscribed.

Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

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Successfully merging this pull request may close these issues.

4 participants

@kouvel@stephentoub@lateralusX@davmason
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

Conversation

@kouvel

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

@ghost

ghost commented Jun 3, 2023

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Tagging subscribers to this area: @mangod9
See info in area-owners.md if you want to be subscribed.

Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add managed entry points for raising Contention events - #87087

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kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

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ghost commented Jun 3, 2023

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Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

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kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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@kouvel@stephentoub@lateralusX@davmason
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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@kouvel

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

@ghost

ghost commented Jun 3, 2023

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Tagging subscribers to this area: @mangod9
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Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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@kouvel@stephentoub@lateralusX@davmason
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

Add managed entry points for raising Contention events - #87087

Merged
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents
Jun 15, 2023
Merged

Add managed entry points for raising Contention events#87087
kouvel merged 9 commits into
dotnet:mainfrom
kouvel:ContentionEvents

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@kouvel

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  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

@ghost

ghost commented Jun 3, 2023

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Tagging subscribers to this area: @mangod9
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Issue Details
  • Added the events similarly to how the PortableThreadPool events are currently set up
  • The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
Author:kouvel
Assignees:kouvel
Labels:

area-System.Threading

Milestone:8.0.0

@stephentoub

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The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

@kouvel

kouvel commented Jun 6, 2023

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ContributorAuthor

Do we expect to raise these as well from SpinLock? What about other managed lock types, like ReaderWriterLockSlim?

It would be nice to in the future, though I haven't seen much desire for it. For doing that though, could maybe consider adding an enum field that indicates what type caused the contention for easier filtering. Although the ContentionStart event has stacks, stack tracing can be missed sometimes. Or maybe they can be different events for each type, that would make it easier to identify quickly from a profile, but then there's also a question about whether Monitor.LockContentionCount should include contention from all of those types or if we should have different contention properties on the appropriate types, and what the dotnet-monitor contention count would show. My inclination currently is to evaluate expanding it based on need.

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LGTM

Comment threadsrc/mono/mono/eventpipe/gen-eventing-event-inc.lst Outdated

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This file was not included previously if FeaturePortableThreadPool wasn't true and never on Mono/CoreCLR, now it looks like this will always be included if FeaturePerfTracing != 'true' and that is at least the case for TargetsBrowser (WASM).

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Previously the file contained events that would only be raised by the portable thread pool. I reused the same file for contention events and they could be raised from anywhere. Some thread pool events too may be raised from different implementations in the future.

The condition that enables FeaturePortableThreadPool in Mono is currently similar to the one that enables FeaturePerfTracing. I believe the correct condition would be just '$(FeaturePerfTracing)' != 'true', as FeaturePerfTracing seems to be the one used to set up eventing (and using genRuntimeEventSources.py). In NativeAOT, currently FeaturePerfTracing is true but the eventing stuff appears to not be set up yet, so I modified the conditions so that the same file as before would for now be included in NativeAOT.

Koundinya Veluri added 8 commits June 14, 2023 19:59
- Added the events similarly to how the PortableThreadPool events are currently set up. They may need further tweaking to make them work from NativeAOT.
- The events are not raised anywhere from the managed side yet, it's expected that they will eventually be raised by a new Lock type and at least by NativeAOT's Lock
@kouvel
kouvel merged commit 4302b80 into dotnet:mainJun 15, 2023
@kouvel
kouvel deleted the ContentionEvents branch June 15, 2023 13:36
@ghostghost locked as resolved and limited conversation to collaborators Jul 15, 2023
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4 participants

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