e880095da3
vm: fix data roots in get-samples primitive
2011-11-02 13:23:17 -07:00
29fa23c40a
vm: quell MSVC warnings
2011-11-02 13:23:16 -07:00
30ed9b535b
vm: parameterize sampling rate
2011-11-02 13:23:15 -07:00
799053661e
vm: better organize atomics and sample counter
2011-11-02 13:23:15 -07:00
27ac4c60f4
vm: factor out sample counting code
2011-11-02 13:23:13 -07:00
d9afe92c97
get sampler working under windows
2011-11-02 13:23:12 -07:00
abaa051768
vm: fix build on windows
2011-11-02 13:23:12 -07:00
1351e30e52
vm: sampling profiler timer for windows
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Spawn a thread and have it spin on the performance counter, triggering safepoints on the main thread every sample time
2011-11-02 13:23:11 -07:00
f5cdfaeb2a
vm: count samples from foreign threads
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On OS X it appears the mach exception thread and libdispatch queue threads occasionally get the SIGALRM from the itimer. Count those as foreign_thread_samples instead of letting the signal kill the process.
2011-11-02 13:23:10 -07:00
e10c3183c8
vm: add primitives to lift sample data to factor
2011-11-02 13:23:09 -07:00
1089816b21
vm: release memory used by sampler vectors
2011-11-02 13:23:08 -07:00
40bc8459db
vm: bottom_frame method for contexts
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ctx->callstack_bottom - 1 -- the fuck does that mean?!
2011-11-02 13:23:07 -07:00
be5c7476d7
vm: don't allocate callstack samples on data heap
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Invoking a GC during a safepoint has some complications, so stuff the callstack samples in a vector instead.
2011-11-02 13:23:07 -07:00
80fb7788d9
vm: groundwork for sampling profiler
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Set up the state necessary to collect samples. We still need to add GC support for walking the sample set, and the compiler needs to register GC roots before safepoints as well. We also need primitives to expose the data to Factor for reporting.
2011-11-02 13:23:06 -07:00
Joe Groff