src: add sync trace to fs by chinhuang007 · Pull Request #19649 · nodejs/node

chinhuang007 · 2018-03-28T05:19:46Z

Add sync trace to fs operations which
is enabled by the node.fs.sync trace event
category. Also add a general test js file
to verify all operations.

Checklist

[x ] make -j4 test (UNIX), or vcbuild test (Windows) passes
[x ] tests and/or benchmarks are included
[x ] commit message follows commit guidelines

Trott · 2018-03-28T05:39:01Z

@nodejs/fs

joyeecheung · 2018-03-28T05:46:06Z

Maybe pass this as a parameter to SyncCall and call FS_SYNC_TRACE_BEGIN and FS_SYNC_TRACE_END from there?

Thanks very much for the comment. I also considered adding trace begin and end into SyncCall. These trace functions are flexible to take additional useful tracing data whenever making sense such as number of bytes read for read(). Since SyncCall is already a variadic function, it will be a little messy to introduce arbitrary trace arguments there. It seems cleaner to leave SyncCall API unchanged and call trace begin and end variadic functions separately.

@chinhuang007 Good point, I missed the call below that passes additional arguments to the macros, sorry about that.

joyeecheung · 2018-03-29T03:16:38Z

CI: https://ci.nodejs.org/job/node-test-pull-request/13914/

chinhuang007 · 2018-03-30T17:17:45Z

I fixed the conflicts in src/node_file.cc. Can someone start a new CI please?

joyeecheung · 2018-03-30T17:35:51Z

New CI: https://ci.nodejs.org/job/node-test-pull-request/13953/

yhwang · 2018-04-02T16:29:08Z

New CI: https://ci.nodejs.org/job/node-test-commit/17360/

yhwang · 2018-04-02T21:50:28Z

Another new CI to help the problem investigation: https://ci.nodejs.org/job/node-test-commit/17366/

chinhuang007 · 2018-04-03T00:50:56Z

Thanks. Most CI issues were fixed by avoid using relative paths. Also found and fixed the AIX issues. Please start a new CI.

yhwang · 2018-04-03T01:08:34Z

New CI: https://ci.nodejs.org/job/node-test-commit/17371/

jasnell · 2018-04-03T14:55:54Z

I'd prefer to not have to define these as static strings this way and just build it in to the macro such that, for instance, FS_SYNC_TRACE_BEGIN(access) would expand out to fs.access

chinhuang007 · 2018-04-03T23:03:30Z

I merged with upstream, fixed the lint issue, and changed to use macros instead of static strings as @jasnell commented. Can someone start a CI?

joyeecheung · 2018-04-04T05:14:47Z

CI: https://ci.nodejs.org/job/node-test-pull-request/14026/

jasnell · 2018-04-04T19:08:23Z

To group this better with other trace event test cases, please use a file name like test-trace-events-fs-sync.js

chinhuang007 · 2018-04-09T17:33:57Z

@joyeecheung Thanks for the heads-up. I just rebased my master and this branch and passed local tests. Can someone start an CI to see if everything is good?

yhwang · 2018-04-09T19:04:47Z

CI: https://ci.nodejs.org/job/node-test-commit/17570/

chinhuang007 · 2018-04-09T23:10:37Z

CI passed all tests except on linux-linked-debug, failing on test-http-readable-data-event, and on arm-fanned, failing on Waiting for next available executor on pi1-docker. Both seem unrelated to this PR.

mhdawson

LGTM

mhdawson · 2018-04-12T21:53:29Z

New CI since we are trying to have green CI before landing: https://ci.nodejs.org/job/node-test-pull-request/14233/

jasnell · 2018-04-14T19:44:47Z

CI failures appear unrelated.

Add sync trace to fs operations which is enabled by the node.fs.sync trace event category. Also add a general test js file to verify all operations. PR-URL: #19649 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

jasnell · 2018-04-14T19:57:42Z

Landed in 09c6346

Add sync trace to fs operations which is enabled by the node.fs.sync trace event category. Also add a general test js file to verify all operations. PR-URL: #19649 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

Add the trace category for file system synchronous methods to documentation so the users can enable it when they want to look into file system sync method trace data. Refs: nodejs#19649

Add the trace category for file system synchronous methods to documentation so the users can enable it when they want to look into file system sync method trace data. PR-URL: #20526 Refs: #19649 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. fs Issues and PRs related to the fs subsystem / file system. labels Mar 28, 2018

joyeecheung reviewed Mar 28, 2018
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chinhuang007 force-pushed the add_fs_sync_trace branch from 9ab8e6a to f77f35eCompare March 28, 2018 17:50

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jasnell reviewed Apr 4, 2018
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jasnell approved these changes Apr 9, 2018
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joyeecheung approved these changes Apr 10, 2018
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chinhuang007 mentioned this pull request Apr 12, 2018
[trace_event] adding trace points to core nodejs/diagnostics#82
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mhdawson approved these changes Apr 12, 2018
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jasnell closed this Apr 14, 2018

chinhuang007 deleted the add_fs_sync_trace branch April 24, 2018 18:56

chinhuang007 mentioned this pull request May 4, 2018
doc: add trace category for fs sync methods #20526
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