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base repository: nodejs/node-v0.x-archive
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  • 3 commits
  • 3 files changed
  • 1 contributor

Commits on Oct 3, 2013

  1. src: notify V8 profiler when we're idle 

    Inform V8's CPU profiler when we're idle.  The profiler is
sampling-based but not all samples are created equal; mark the wall
clock time spent in epoll_wait() and friends so profiling tools can
filter it out.  The samples still end up in v8.log but with state=IDLE
rather than state=EXTERNAL.
    @bnoordhuis
    bnoordhuis committed Oct 3, 2013
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  2. src: only start idle notifier when profiling 

    The previous commit adds a notifier that tells the V8 profiler when
node.js is idle, i.e. when it's about to start sleeping in the
platform's equivalent of epoll_wait().

This commit adds a heuristic that only starts the notifier when the
V8 profiler is started from the command line.
    @bnoordhuis
    bnoordhuis committed Oct 3, 2013
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  3. src: add JS start/stop methods for idle notifier 

    The previous commit changes the profiler idle notifier so that it only
gets started when a --prof or --prof_lazy argument is specified on the
command line.

This commit adds two internal methods to the process object that allows
one to start and stop the idle notifier programmatically.
    @bnoordhuis
    bnoordhuis committed Oct 3, 2013
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