- 16 Apr, 2021 1 commit
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Arno Renevier authored
- represent smis as fake heap numbers - numbers nodes (both smi and heap numbers) reference a child node whose name is "value" and whose entry is the string representation of that number That feature is disabled by default, and can be enabled by passing captureNumericValue: true when calling HeapProfiler.takeHeapSnapshot This patch slightly refactors some functions that operate on "essential objects". We now check that the object is essential before trying to create the entry. Otherwise, we would end up with smi objects created, but not referenced anywhere. Design doc: https://docs.google.com/document/d/1Qh1zxyn0SS5wzJzitD6ecBJTdFbQkJogSMwxDRsn44o/edit Change-Id: Ibbe6e79a54c4f9eace72bc0a0ccb622a97698e00 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806747Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Arnaud Renevier <arenevier@fb.com> Cr-Commit-Position: refs/heads/master@{#73985}
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- 11 Nov, 2020 1 commit
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Zhi An Ng authored
Bug: v8:11074 Change-Id: I11632ad59ec3826b71e901e0eb34ef6dc1295637 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2524419Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#71098}
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- 29 Oct, 2020 1 commit
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Michael Lippautz authored
This is a reland of e68285e2 Failing wasm tests seemed to recover on their own. Original change's description: > cppgc-js: heap snapshot: Add logic for querying detachedness > > Adds infrastructure to allow embedders specifying a detachedness state > that is queried when encountering an object with a TraceReference that > has a non-zero wrapper class id set. > > Change-Id: Ie7f2f253544ee25a25565eb08d82e9df5f0a74d2 > Bug: chromium:1056170 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2502345 > Commit-Queue: Michael Lippautz <mlippautz@chromium.org> > Reviewed-by: Omer Katz <omerkatz@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70841} Bug: chromium:1056170 Change-Id: I293a9d38f841b4d0faa4af7408bb57544f11d566 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2505713 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Omer Katz <omerkatz@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#70867}
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- 28 Oct, 2020 2 commits
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Francis McCabe authored
This reverts commit e68285e2. Reason for revert: ASAN test failing: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20ASAN/29838? Original change's description: > cppgc-js: heap snapshot: Add logic for querying detachedness > > Adds infrastructure to allow embedders specifying a detachedness state > that is queried when encountering an object with a TraceReference that > has a non-zero wrapper class id set. > > Change-Id: Ie7f2f253544ee25a25565eb08d82e9df5f0a74d2 > Bug: chromium:1056170 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2502345 > Commit-Queue: Michael Lippautz <mlippautz@chromium.org> > Reviewed-by: Omer Katz <omerkatz@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#70841} TBR=ulan@chromium.org,mlippautz@chromium.org,omerkatz@chromium.org Change-Id: Ic13337b9c5b336a81efa5f2672f5a501084b5326 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:1056170 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2505613Reviewed-by:
Francis McCabe <fgm@chromium.org> Commit-Queue: Francis McCabe <fgm@chromium.org> Cr-Commit-Position: refs/heads/master@{#70843}
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Michael Lippautz authored
Adds infrastructure to allow embedders specifying a detachedness state that is queried when encountering an object with a TraceReference that has a non-zero wrapper class id set. Change-Id: Ie7f2f253544ee25a25565eb08d82e9df5f0a74d2 Bug: chromium:1056170 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2502345 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Omer Katz <omerkatz@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#70841}
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- 12 Oct, 2020 1 commit
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Anna Henningsen authored
Fix a crash/hang that occurred when deleting a snapshot during the GC that is part of taking another one. Specifically, when deleting the only other snapshot in such a situation, the `v8::HeapSnapshot::Delete()` method sees that there is only one (complete) snapshot at that point, and decides that it is okay to perform “delete all snapshots” instead of just deleting the requested one. That resets the internal string lookup table of the heap profiler, but the new snapshot that is currently in progress still holds references to the old string lookup table, leading to a use-after-free segfault or infinite loop. Fix this by guarding against resetting the string table while another heap snapshot is being taken, and add a test that would crash before this fix. This can be triggered in Node.js by repeatedly calling `v8.getHeapSnapshot()`, which provides heap snapshots as weakly held host objects. Change-Id: If9ac3728bf79114000982f1e7bb05e8034299e3c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464823Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#70445}
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- 18 Dec, 2019 1 commit
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Sigurd Schneider authored
This CL adds an argument to the heap profiler that allows to control whether global objects (e.g. 'window' in JavaScript) are treated as roots in the heap snapshot. Doing so hides blink-internal details and is often a good choice when user-JS leaks are investigated. Sometimes, however, this introduces spurious retainer cycles, which are hard to debug. Previously, this option was exposed as a V8 flag. The blink implications of the build-time V8 flag are now available via the new blink flag `enable_additional_blink_object_names`. Tbr: hpayer@chromium.org Bug: chromium:1034504 Change-Id: Ibe9412917ae598a3ff0c3dc956ab0bc179f50a21 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1967387Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#65491}
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- 09 Aug, 2019 1 commit
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Michael Lippautz authored
- Adds regular native heap entries to the HeapObjectsMap. - Adds a side map for keeping a mapping of native objects to their canonical heap entry that they have been merged into. Change-Id: Ida00628126ded1948ceb2a0cbe14da817af7f361 Bug: chromium:988350 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1720810 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#63140}
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- 24 May, 2019 1 commit
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Yang Guo authored
TBR=mvstanton@chromium.org,neis@chromium.org,ahaas@chromium.org Bug: v8:9247 Change-Id: I5433c863a54f3412d73df0d38aba3fdbcfac7ebe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627973 Commit-Queue: Yang Guo <yangguo@chromium.org> Auto-Submit: Yang Guo <yangguo@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#61830}
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- 24 Jan, 2019 1 commit
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Ulan Degenbaev authored
Bug: chromium:749490 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I4ae6883dd5ed5f313e21af20c29e560c73c33675 Reviewed-on: https://chromium-review.googlesource.com/c/948903 Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Cr-Commit-Position: refs/heads/master@{#59076}
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- 17 Dec, 2018 1 commit
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Jakob Kummerow authored
Either Address* or Handle<Object> or ObjectSlot, depending on circumstances. Bug: v8:3770 Change-Id: Id00dfede6eb92ec30b658c0090b5310548ba5162 Reviewed-on: https://chromium-review.googlesource.com/c/1379228 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#58282}
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- 30 Oct, 2018 1 commit
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Peter Marshall authored
If a caller starts the sampling heap profiler and takes a snapshot, and then deletes the snapshot before the sampling has completed, a use-after-free will occur on the StringsStorage pointer. The same issue applies for StartTrackingHeapObjects which shares the same StringsStorage object. Bug: v8:8373 Change-Id: I5d69d60d3f9465f9dd3b3bef107c204e0fda0643 Reviewed-on: https://chromium-review.googlesource.com/c/1301477 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Cr-Commit-Position: refs/heads/master@{#57114}
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- 17 Sep, 2018 1 commit
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Florian Sattler authored
Fixing clang-tidy warning. Bug: v8:8015 Change-Id: Ibdb4b81e1ba764d73bac6592eeef5783097076fc Reviewed-on: https://chromium-review.googlesource.com/1225896Reviewed-by:
Hannes Payer <hpayer@chromium.org> Commit-Queue: Florian Sattler <sattlerf@google.com> Cr-Commit-Position: refs/heads/master@{#55965}
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- 30 Jul, 2018 1 commit
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Peter Marshall authored
Fixes: src/parsing/parse-info.h src/parsing/preparsed-scope-data.h src/profiler/heap-profiler.h src/profiler/heap-snapshot-generator.h src/profiler/heap-snapshot-generator-inl.h' src/property.h src/prototype.h src/prototype-inl.h Bug: v8:7754,v8:7490,v8:7965 Change-Id: Iba14292cdfbbaf29d5b989c16d579a1ee0edcc25 Reviewed-on: https://chromium-review.googlesource.com/1154967 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#54787}
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- 06 Jun, 2018 1 commit
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Anna Henningsen authored
`SetBuildEmbedderGraphCallback`, unlike `SetWrapperClassInfoProvider`, assumes a monolithic embedder that can provide all necessary information. That is not the case for e.g. Node.js, which can e.g. provide multiple Node.js instances per V8 Isolate, as well as native addons that may allocate resources on their own. Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: Ib53dfde82416dd69934b08623e27d674a483ac2d Reviewed-on: https://chromium-review.googlesource.com/1082441 Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#53545}
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- 05 Apr, 2018 1 commit
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Alexey Kozyatinskiy authored
This is a reland of 7a2c3713 Original change's description: > [debug] introduced runtime side effect check > > This CL demonstrates minimum valuable addition to existing debug evaluate > without side effects mechanism. > With this CL user can evaluate expressions like: > [a,b] // create any kind of temporary array literals > [a,b].reduce((x,y) => x + y, 0); // use reduce method > [1,2,3].fill(2); // change temporary arrays > > The core idea: any change of the object created during evaluation without > side effects is side effect free. As soon as we try to store this temporary > object to object existed before evaluation we will terminate execution. > > Implementation: > - track all objects allocated during evaluation and mark them as temporary, > - patch all bytecodes which change objects. > > A little more details (including performance analysis): [1]. > > [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit# > > Bug: v8:7588 > Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111 > Reviewed-on: https://chromium-review.googlesource.com/972615 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#52370} Bug: v8:7588 Change-Id: Ibc92bf19155f2ddaedae39b0c576b994e84afcf8 Reviewed-on: https://chromium-review.googlesource.com/996760Reviewed-by:
Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#52373}
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- 04 Apr, 2018 2 commits
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Aleksey Kozyatinskiy authored
This reverts commit 7a2c3713. Reason for revert: msan is broken Original change's description: > [debug] introduced runtime side effect check > > This CL demonstrates minimum valuable addition to existing debug evaluate > without side effects mechanism. > With this CL user can evaluate expressions like: > [a,b] // create any kind of temporary array literals > [a,b].reduce((x,y) => x + y, 0); // use reduce method > [1,2,3].fill(2); // change temporary arrays > > The core idea: any change of the object created during evaluation without > side effects is side effect free. As soon as we try to store this temporary > object to object existed before evaluation we will terminate execution. > > Implementation: > - track all objects allocated during evaluation and mark them as temporary, > - patch all bytecodes which change objects. > > A little more details (including performance analysis): [1]. > > [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit# > > Bug: v8:7588 > Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111 > Reviewed-on: https://chromium-review.googlesource.com/972615 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#52370} TBR=ulan@chromium.org,rmcilroy@chromium.org,yangguo@chromium.org,kozyatinskiy@chromium.org,leszeks@chromium.org Change-Id: Ied1739c6308b13a4981189e0999f5912316cf456 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:7588 Reviewed-on: https://chromium-review.googlesource.com/996135Reviewed-by:
Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#52371}
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Alexey Kozyatinskiy authored
This CL demonstrates minimum valuable addition to existing debug evaluate without side effects mechanism. With this CL user can evaluate expressions like: [a,b] // create any kind of temporary array literals [a,b].reduce((x,y) => x + y, 0); // use reduce method [1,2,3].fill(2); // change temporary arrays The core idea: any change of the object created during evaluation without side effects is side effect free. As soon as we try to store this temporary object to object existed before evaluation we will terminate execution. Implementation: - track all objects allocated during evaluation and mark them as temporary, - patch all bytecodes which change objects. A little more details (including performance analysis): [1]. [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit# Bug: v8:7588 Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111 Reviewed-on: https://chromium-review.googlesource.com/972615 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#52370}
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- 23 Feb, 2018 1 commit
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Marja Hölttä authored
BUG=v8:7490, v8:7310 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I2eb6897d9dcc72cc6f399a8752b9f30d7d7010f8 Reviewed-on: https://chromium-review.googlesource.com/934504Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#51523}
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- 08 Feb, 2018 1 commit
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Franziska Hinkelmann authored
Implement empty desctructor because of the forward declarations. Change-Id: I56af92d7ded44b6fcd3582d1e3a10e9bb5cb1296 Reviewed-on: https://chromium-review.googlesource.com/905671Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Franziska Hinkelmann <franzih@chromium.org> Cr-Commit-Position: refs/heads/master@{#51180}
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- 01 Feb, 2018 1 commit
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Ulan Degenbaev authored
That patch introduces EmbedderGraph interface that embedders can use to represent C++ objects that retain or are retained by V8 JS objects. The heap snapshot generator adds nodes and edges of the EmbedderGraph to the heap snapshot, allowing arbitrarily complex retaining paths that cross V8/Embedder boundary. The new functionality is enabled only if the embedder sets the BuildEmbedderGraph callback. Bug: chromium:749490 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I10a1fa000d6d4ba47fc19d84c7cfc2c619d496fc Reviewed-on: https://chromium-review.googlesource.com/890521Reviewed-by:
Alexei Filippov <alph@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#51016}
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- 07 Sep, 2017 1 commit
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Peter Marshall authored
This is a reland of 9b35364c Original change's description: > [cleanup] Replace more instances of List with std::vector. > > Bug: v8:6333 > Change-Id: Ic1956d3dcfc0309fe2b65344e5af7235d5b804a2 > Reviewed-on: https://chromium-review.googlesource.com/651413 > Reviewed-by: Georg Neis <neis@chromium.org> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47854} Bug: v8:6333 Change-Id: I5d9482b061f26b57550a421ea4099372dc80767f Reviewed-on: https://chromium-review.googlesource.com/654898Reviewed-by:
Georg Neis <neis@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#47884}
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- 06 Sep, 2017 2 commits
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Peter Marshall authored
This reverts commit 9b35364c. Reason for revert: Failing tests on Win64 Debug Original change's description: > [cleanup] Replace more instances of List with std::vector. > > Bug: v8:6333 > Change-Id: Ic1956d3dcfc0309fe2b65344e5af7235d5b804a2 > Reviewed-on: https://chromium-review.googlesource.com/651413 > Reviewed-by: Georg Neis <neis@chromium.org> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47854} TBR=neis@chromium.org,jgruber@chromium.org,petermarshall@chromium.org Change-Id: Ifa2cd98edd9ec5e1d67c81501f0d9e8aae69536c No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:6333 Reviewed-on: https://chromium-review.googlesource.com/653117Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#47855}
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Peter Marshall authored
Bug: v8:6333 Change-Id: Ic1956d3dcfc0309fe2b65344e5af7235d5b804a2 Reviewed-on: https://chromium-review.googlesource.com/651413Reviewed-by:
Georg Neis <neis@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#47854}
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- 21 Aug, 2017 1 commit
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Alexey Kozyatinskiy authored
Runtime.queryObjects method: 1. force gc, 2. iterate through heap and get all objects with passed constructorName or with passed constructor name in prototype chain, 3. return these objects as JSArray. Main use case is regression tests for memory leaks. R=pfeldman@chromium.org,alph@chromium.org,ulan@chromium.org Bug: v8:6732 Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I52f0803366f14bb24376653615d870a4f21f83e7 Reviewed-on: https://chromium-review.googlesource.com/619594Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Pavel Feldman <pfeldman@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#47478}
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- 28 Jul, 2017 1 commit
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Alexei Filippov authored
Remove GetProfilerMemorySize from HeapProfiler API. Remove HeapObjectsMap::FindUntrackedObjects Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I32a9a0676485c17c08c068a8ca501525b0d2670e Reviewed-on: https://chromium-review.googlesource.com/590651Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Alexei Filippov <alph@chromium.org> Cr-Commit-Position: refs/heads/master@{#46984}
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- 02 Mar, 2017 1 commit
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Michael Lippautz authored
Enbedders should switch to EmbedderHeapTracer API. BUG=v8:5828 Change-Id: I82f2bc583d246617865a17f5904e02cd35f92fec Reviewed-on: https://chromium-review.googlesource.com/448539Reviewed-by:
Hannes Payer <hpayer@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#43551}
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- 19 Jan, 2017 1 commit
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mlippautz authored
BUG=679724 Review-Url: https://codereview.chromium.org/2631063003 Cr-Commit-Position: refs/heads/master@{#42506}
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- 25 Jul, 2016 1 commit
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jochen authored
R=ishell@chromium.org,bmeurer@chromium.org TBR=rossberg@chromium.org BUG= Review-Url: https://codereview.chromium.org/2175233003 Cr-Commit-Position: refs/heads/master@{#38009}
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- 04 May, 2016 1 commit
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alph authored
BUG=v8:4959 LOG=N Review-Url: https://codereview.chromium.org/1949693003 Cr-Commit-Position: refs/heads/master@{#36042}
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- 13 Apr, 2016 1 commit
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ofrobots authored
Left trimming assumes that nobody other than the JSArray has a reference to the backing store. Sampling heap profiler may profile the backing store and keep a reference too it. This reference was never updated on a left-trim, causing a crash. R=alph@chromium.org, hpayer@chromium.org, mattloring@google.com BUG= Review URL: https://codereview.chromium.org/1885723002 Cr-Commit-Position: refs/heads/master@{#35449}
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- 22 Jan, 2016 1 commit
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ofrobots authored
Revert "Revert of [profiler] Implement POC Sampling Heap Profiler (patchset #12 id:220001 of https://codereview.chromium.org/1555553002/ )" This reverts commit 77df8659. BUG= Review URL: https://codereview.chromium.org/1618693004 Cr-Commit-Position: refs/heads/master@{#33473}
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- 21 Jan, 2016 2 commits
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ofrobots authored
Revert of [profiler] Implement POC Sampling Heap Profiler (patchset #12 id:220001 of https://codereview.chromium.org/1555553002/ ) Reason for revert: The random nature of the tests caused the following buildbot to fail: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20gcc%204.8/builds/4724/steps/Check/logs/stdio Original issue's description: > [profiler] Implement POC Sampling Heap Profiler > > This implements a proof-of-concept sampling based heap profiler inspired by > tcmalloc's heap profiler [1] and Go's mprof/memprofile [2]. > > The basic idea is the sample allocations using a randomized Poisson process. At > any point in time we can cheaply request the set of live sample objects that > should be a representative sample of heap. Samples include stack-traces from the > allocation sites, making this an effective tool for memory leak debugging. > > Unlike AllocationTracking, this is intended to be cheap and usable online in > production. > > The proof-of-concept is only sampling new-space allocations at this point. > Support for sampling paged space and native allocations is anticipated in the > future. > > [1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html > [2] http://blog.golang.org/profiling-go-programs > > Committed: https://crrev.com/e5a9947811db9c9e23557dbad27f8b8a349b3262 > Cr-Commit-Position: refs/heads/master@{#33448} TBR=jochen@chromium.org,alph@chromium.org,hpayer@chromium.org,yangguo@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review URL: https://codereview.chromium.org/1615173002 Cr-Commit-Position: refs/heads/master@{#33449}
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ofrobots authored
This implements a proof-of-concept sampling based heap profiler inspired by tcmalloc's heap profiler [1] and Go's mprof/memprofile [2]. The basic idea is the sample allocations using a randomized Poisson process. At any point in time we can cheaply request the set of live sample objects that should be a representative sample of heap. Samples include stack-traces from the allocation sites, making this an effective tool for memory leak debugging. Unlike AllocationTracking, this is intended to be cheap and usable online in production. The proof-of-concept is only sampling new-space allocations at this point. Support for sampling paged space and native allocations is anticipated in the future. [1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html [2] http://blog.golang.org/profiling-go-programs Review URL: https://codereview.chromium.org/1555553002 Cr-Commit-Position: refs/heads/master@{#33448}
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- 30 Nov, 2015 1 commit
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jochen authored
R=vogelheim@chromium.org LOG=n BUG=v8:2487 Review URL: https://codereview.chromium.org/1474353002 Cr-Commit-Position: refs/heads/master@{#32389}
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- 30 Sep, 2015 1 commit
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mstarzinger authored
This enables linter checking for "readability/namespace" violations during presubmit and instead marks the few known exceptions that we allow explicitly. R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/1371083003 Cr-Commit-Position: refs/heads/master@{#31019}
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- 28 Sep, 2015 1 commit
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alph authored
Drive-by: remove unnecessary includes. Review URL: https://codereview.chromium.org/1356223004 Cr-Commit-Position: refs/heads/master@{#30987}
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- 14 Sep, 2015 1 commit
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mlippautz authored
Parallel compaction, i.e., concurrently moving of objects (and code) requires proper synchronization in the logger. R=hpayer@chromium.org BUG=chromium:524425 LOG=N Review URL: https://codereview.chromium.org/1338253002 Cr-Commit-Position: refs/heads/master@{#30714}
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- 20 Aug, 2015 1 commit
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mstarzinger authored
R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/1285183010 Cr-Commit-Position: refs/heads/master@{#30263}
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- 12 Aug, 2015 1 commit
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mstarzinger authored
This tries to remove includes of "-inl.h" headers from normal ".h" headers, thereby reducing the chance of any cyclic dependencies and decreasing the average size of our compilation units. Note that this change still leaves 7 violations of that rule in the code. However there now is the "tools/check-inline-includes.sh" tool detecting such violations. R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/1283033003 Cr-Commit-Position: refs/heads/master@{#30125}
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