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Zhang, Shiyu authored
This is a reland of 5f5b4b04 Original change's description: > Support Intel VTune ITT API > > Add VTune domain support extension to use VTune Domain/Task API and > tagging trace data for particular JS code block. > > How to use: > 1. Set `"checkout_ittapi" = True` in the custom_vars section of .gclient > file to download intel/ittapi by 'gclient sync' > 2. Build d8 with gn build flag 'v8_enable_vtunetracemark = true' > 3. Run d8 with flag '--enable-vtune-domain-support' > > The Vtune Domain/Task API can be invoked from JS to mark JS code block. > You can mark the start of a JS task by > vtunedomainmark(domain_name, task_name, "start") > and the end of a task by > vtunedomainmark(domain_name, task_name, "end") > Tasks can nest. > > The VTune API (ittapi) is integrated as an external third party library > while the v8_vtune_jit also relies on the VTune ittapi. We have another > patch almost ready which refactors the v8_vtune_jit related code to > depend on the third_party/ittapi. We will submit the refactored v8_vtune_jit > code after this patch stabilized and landed. > > > Contributed by fanchen.kong@intel.com > > Change-Id: I0ecc9dd4e1ea52545f1b6932fcdadfa7c1a6d2b2 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1938490 > Commit-Queue: Shiyu Zhang <shiyu.zhang@intel.com> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Cr-Commit-Position: refs/heads/master@{#65409} Change-Id: I563aa70fa2b8abe34c981af47aa7220cfc2a7edb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1963511 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#65478}
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