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  1. 01 Apr, 2022 3 commits
    • Adam Klein's avatar
      Revert "[osr] Basic support for concurrent OSR" · 32f28553
      Adam Klein authored 
      This reverts commit 3ce690ee.

Reason for revert: failures on CrOS MSan build: https://crbug.com/1312188

Original change's description:
> [osr] Basic support for concurrent OSR
>
> This CL adds basic support behind --concurrent-osr,
> disabled by default.
>
> When enabled:
> 1) the first OSR request starts a concurrent OSR compile job.
> 2) on completion, the code object is inserted into the OSR cache.
> 3) the next OSR request picks up the cached code (assuming the request
>    came from the same JumpLoop bytecode).
>
> We add a new osr optimization marker on the feedback vector to
> track whether an OSR compile is currently in progress.
>
> One fundamental issue remains: step 3) above is not guaranteed to
> hit the same JumpLoop, and a mismatch means the OSR'd code cannot
> be installed. This will be addressed in a followup by targeting
> specific bytecode offsets for the install request.
>
> This change is based on fanchen.kong@intel.com's earlier
> change crrev.com/c/3369361, thank you!
>
> Bug: v8:12161
> Change-Id: Ib162906dd4b6ba056f62870aea2990f1369df235
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548820
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79685}

Bug: v8:12161, chromium:1312188
Change-Id: Iac1e3fd67ecc658a1cdee8f4d13354c097ed6697
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564983
Auto-Submit: Adam Klein <adamk@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79702}
      32f28553
    • Adam Klein's avatar
      Revert "Address comments from `[osr] Basic support for concurrent OSR`" · ef83c9e8
      Adam Klein authored 
      This reverts commit dc9b48e4.

Reason for revert: https://crbug.com/1312188

Original change's description:
> Address comments from `[osr] Basic support for concurrent OSR`
>
> - Unhandlify OSROptimizedCodeCache::GetOptimizedCode.
> - Unstatic-fy FeedbackVector::SetOptimizedCode.
> - Remove frame-walking logic during the OSR tierup decision.
>
> Bug: v8:12161
> Change-Id: I4fa8c972cb50d369b17898ba57e1909c86e933df
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560478
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79686}

Bug: v8:12161, chromium:1312188
Change-Id: Ia64c4204f9f65f19aa858c61f32658cee310033e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564990
Auto-Submit: Adam Klein <adamk@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79701}
      ef83c9e8
    • Adam Klein's avatar
      Revert "Refactor OSROptimizedCodeCache" · b591fccb
      Adam Klein authored 
      This reverts commit d368dcf4.

Reason for revert: https://crbug.com/1312188

Original change's description:
> Refactor OSROptimizedCodeCache
>
> Tweak a few names, remove a few GetIsolate calls, other minor
> usability refactors.
>
> It may be worth taking a closer look at the impl in the future,
> currently the design choices don't seem ideal (see the added TODO
> on top of the class).
>
> Bug: v8:12161
> Change-Id: Ib34e372aa58a30c68c9c5cdd0d1da0ec3e86717c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560447
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79687}

Bug: v8:12161, chromium:1312188
Change-Id: Ieb3a91682845a23536fdfdf3208af74b3c6585f8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564989
Auto-Submit: Adam Klein <adamk@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79700}
      b591fccb
  3. 31 Mar, 2022 18 commits
  5. 30 Mar, 2022 19 commits