build,src: add Intel Vtune profiling support#4131
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cdai2 wants to merge 2 commits intonodejs:v4.x-stagingfrom
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build,src: add Intel Vtune profiling support#4131cdai2 wants to merge 2 commits intonodejs:v4.x-stagingfrom
cdai2 wants to merge 2 commits intonodejs:v4.x-stagingfrom
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cdai2
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Dec 3, 2015
cdai2
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When v8 implemented proper one-byte string support Node's internal "binary" encoding implementation was removed in favor of it. The result was that "binary" encoding effectively became "latin-1" encoding. Because of this and because one-byte strings are natively supported by v8 the buffer encoding is not deprecated and will not be removed. Ref: 83261e7 "deps: update v8 to 3.17.13" PR-URL: nodejs#3441 Reviewed-By: Ben Noordhuis <ben@strongloop.com>
This feature supports the Intel Vtune profiling support for JITted JavaScript on IA32 / X64 / X32 platform. The advantage of this profiling is that the user / developer of NodeJS application can get the detailed profiling information for every line of the JavaScript source code. This information will be very useful for the owner to optimize their applications. This feature is a compile-time option. For windows platform, the user needs to pass the following parameter to vcbuild.bat: "enable-vtune" For other OS, the user needs to pass the following parameter to ./configure command: "--enable-vtune-profiling" cherry-pick nodejs#3785 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This was referenced Jul 13, 2021
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