GC events from Native AOT don't contain type names #112291

Closed
Closed
GC events from Native AOT don't contain type names#112291
Labels
area-NativeAOT-coreclr
Milestone
10.0.0

Description

@agocke
agocke
opened on Feb 7, 2025

The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.

We should have some way to produce a trace with names rather than IDs.

Some options:

  1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
  2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
  3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.

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    , '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" + '

    Skip to content
    GC events from Native AOT don't contain type names #112291
    Closed
    Closed
    GC events from Native AOT don't contain type names#112291
    Labels
    area-NativeAOT-coreclr
    Milestone
    10.0.0
    Description
    @agocke
    agocke
    opened on Feb 7, 2025
    The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
    We should have some way to produce a trace with names rather than IDs.
    Some options:
    1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
    2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
    3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
    Metadata
    Metadata
    Assignees
    No one assigned
      Labels
      area-NativeAOT-coreclr
      Type
      No type
      Projects
      • AppModel
        Status
        No status
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      None yet
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, '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('^' + ".*" + '

      Skip to content
      GC events from Native AOT don't contain type names #112291
      Closed
      Closed
      GC events from Native AOT don't contain type names#112291
      Labels
      area-NativeAOT-coreclr
      Milestone
      10.0.0
      Description
      @agocke
      agocke
      opened on Feb 7, 2025
      The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
      We should have some way to produce a trace with names rather than IDs.
      Some options:
      1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
      2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
      3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        area-NativeAOT-coreclr
        Type
        No type
        Projects
        • AppModel
          Status
          No status
        Milestone
        Relationships
        None yet
        Development
        No branches or pull requests
        Issue actions
        
, '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('^' + ".*" + '

        Skip to content
        GC events from Native AOT don't contain type names #112291
        Closed
        Closed
        GC events from Native AOT don't contain type names#112291
        Labels
        area-NativeAOT-coreclr
        Milestone
        10.0.0
        Description
        @agocke
        agocke
        opened on Feb 7, 2025
        The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
        We should have some way to produce a trace with names rather than IDs.
        Some options:
        1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
        2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
        3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
        Metadata
        Metadata
        Assignees
        No one assigned
          Labels
          area-NativeAOT-coreclr
          Type
          No type
          Projects
          • AppModel
            Status
            No status
          Milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, '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" + '

          Skip to content
          GC events from Native AOT don't contain type names #112291
          Closed
          Closed
          GC events from Native AOT don't contain type names#112291
          Labels
          area-NativeAOT-coreclr
          Milestone
          10.0.0
          Description
          @agocke
          agocke
          opened on Feb 7, 2025
          The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
          We should have some way to produce a trace with names rather than IDs.
          Some options:
          1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
          2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
          3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            area-NativeAOT-coreclr
            Type
            No type
            Projects
            • AppModel
              Status
              No status
            Milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, '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('^' + ".*" + '

            Skip to content
            GC events from Native AOT don't contain type names #112291
            Closed
            Closed
            GC events from Native AOT don't contain type names#112291
            Labels
            area-NativeAOT-coreclr
            Milestone
            10.0.0
            Description
            @agocke
            agocke
            opened on Feb 7, 2025
            The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
            We should have some way to produce a trace with names rather than IDs.
            Some options:
            1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
            2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
            3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
            Metadata
            Metadata
            Assignees
            No one assigned
              Labels
              area-NativeAOT-coreclr
              Type
              No type
              Projects
              • AppModel
                Status
                No status
              Milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, '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('^' + ".*" + '

              Skip to content
              GC events from Native AOT don't contain type names #112291
              Closed
              Closed
              GC events from Native AOT don't contain type names#112291
              Labels
              area-NativeAOT-coreclr
              Milestone
              10.0.0
              Description
              @agocke
              agocke
              opened on Feb 7, 2025
              The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
              We should have some way to produce a trace with names rather than IDs.
              Some options:
              1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
              2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
              3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                area-NativeAOT-coreclr
                Type
                No type
                Projects
                • AppModel
                  Status
                  No status
                Milestone
                Relationships
                None yet
                Development
                No branches or pull requests
                Issue actions
                
, '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
                GC events from Native AOT don't contain type names #112291
                Closed
                Closed
                GC events from Native AOT don't contain type names#112291
                Labels
                area-NativeAOT-coreclr
                Milestone
                10.0.0
                Description
                @agocke
                agocke
                opened on Feb 7, 2025
                The problem is that GC events from EventSource in Native AOT contain type IDs, not type names. The correlation between the type IDs (MethodTable pointers?) and the type names isn't possible to determine for a user.
                We should have some way to produce a trace with names rather than IDs.
                Some options:
                1. Tooling somehow connects the two and displays the trace with names (maybe using the PDBs).
                2. Native AOT somehow extracts the names during event creation and produces events with names instead of IDs.
                3. Native AOT extracts the names during some post-event creation, but still produces a trace with names instead of IDs.
                Metadata
                Metadata
                Assignees
                No one assigned
                  Labels
                  area-NativeAOT-coreclr
                  Type
                  No type
                  Projects
                  • AppModel
                    Status
                    No status
                  Milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions