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http2: fix session memory tracking and small clean up #30351

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@lundibundi lundibundi commented Nov 10, 2019

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

http2: fix session memory tracking with pending input data
Previously DecrementCurrentSessionMemory call was made after the relevant variable was reset to 0.

http2: small clean up in OnStreamRead
Extract pending input memory size in a variable and change code appropriately.

Not sure how to reliably hit the changed case, could someone help so I can write a test for DecrementCurrentSessionMemory?

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. http2 Issues or PRs related to the http2 subsystem. labels Nov 10, 2019
@lundibundi lundibundi changed the title http2: fix read memory track and small clean up http2: fix session memory tracking and small clean up Nov 10, 2019
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I guess if you want to write a test for this, you could build something based on test-http2-generic-streams.js that triggers this condition and takes a heap dump?

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nodejs-github-bot commented Nov 17, 2019

@lundibundi lundibundi added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Nov 17, 2019
@lundibundi lundibundi added blocked PRs that are blocked by other issues or PRs. and removed author ready PRs that have at least one approval, no pending requests for changes, and a CI started. labels Nov 27, 2019
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Waiting for this #30684 to land. I'll then rebase and update this.

@addaleax addaleax removed the blocked PRs that are blocked by other issues or PRs. label Nov 30, 2019
* avoid consecutive decrement/increment session memory calls.
* only Resize the buffer when it is needed.
* flip `stream_buf_offset_` condition to the LIKELY case.
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@jasnell @addaleax @devnexen this got changed slightly, pinging to let you know.

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@jasnell @addaleax @devnexen could someone re-approve please? I consider this author ready, but don't want to have this landed until there is at least one approval of the new changes.
/cc @nodejs/http2

@addaleax addaleax added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Dec 5, 2019
addaleax pushed a commit that referenced this pull request Dec 6, 2019
PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
addaleax pushed a commit that referenced this pull request Dec 6, 2019
* avoid consecutive decrement/increment session memory calls.
* only Resize the buffer when it is needed.
* flip `stream_buf_offset_` condition to the LIKELY case.

PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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addaleax commented Dec 6, 2019

Landed in bfd9de6...51ccf1b

@addaleax addaleax closed this Dec 6, 2019
targos pushed a commit that referenced this pull request Dec 9, 2019
PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
targos pushed a commit that referenced this pull request Dec 9, 2019
* avoid consecutive decrement/increment session memory calls.
* only Resize the buffer when it is needed.
* flip `stream_buf_offset_` condition to the LIKELY case.

PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@MylesBorins MylesBorins mentioned this pull request Dec 13, 2019
targos pushed a commit that referenced this pull request Jan 13, 2020
PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
targos pushed a commit that referenced this pull request Jan 13, 2020
* avoid consecutive decrement/increment session memory calls.
* only Resize the buffer when it is needed.
* flip `stream_buf_offset_` condition to the LIKELY case.

PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
BethGriggs pushed a commit that referenced this pull request Feb 6, 2020
PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
BethGriggs pushed a commit that referenced this pull request Feb 6, 2020
* avoid consecutive decrement/increment session memory calls.
* only Resize the buffer when it is needed.
* flip `stream_buf_offset_` condition to the LIKELY case.

PR-URL: #30351
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@MylesBorins MylesBorins mentioned this pull request Feb 8, 2020
lundibundi added a commit to lundibundi/node that referenced this pull request Jul 22, 2020
mcollina pushed a commit that referenced this pull request Jul 27, 2020
Refs: #34315
Refs: #30351

PR-URL: #34480
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
MylesBorins pushed a commit that referenced this pull request Jul 27, 2020
Refs: #34315
Refs: #30351

PR-URL: #34480
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
codebytere pushed a commit that referenced this pull request Nov 3, 2020
Refs: #34315
Refs: #30351

PR-URL: #34480
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
MylesBorins pushed a commit that referenced this pull request Nov 16, 2020
Refs: #34315
Refs: #30351

PR-URL: #34480
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: David Carlier <[email protected]>
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