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Enhance some of GC features

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* Add a heuristic to run GC before heap block allocation
  (to reduce fragmentation overhead)
* Add logger & visualizer of runtime heap usage
  (available both in debug/release mode)
This commit is contained in:
Eunji Jeong 2016-12-15 19:37:39 +09:00
commit 8afb3c7fa4
10 changed files with 247 additions and 0 deletions
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18
src/shell/shell.cpp
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@ -112,6 +112,11 @@ void GC_free_hook(void* address)
#endif
#ifdef PROFILE_BDWGC
const char* bdwgc_log_filename = "bdwgc_log";
const char* bdwgc_log_phase = "initial phase";
#endif
void eval(Escargot::Context* context, Escargot::String* str, Escargot::String* fileName, bool shouldPrintScriptResult)
{
auto result = context->scriptParser().parse(str, fileName);
@ -173,6 +178,19 @@ int main(int argc, char* argv[])
}
});
#endif
#ifdef PROFILE_BDWGC
remove(bdwgc_log_filename);
FILE* fp = fopen(bdwgc_log_filename, "a");
if (fp) {
fprintf(fp, "GC_no PeakRSS TotalHeap Marked # Phase\n");
fclose(fp);
}
GC_set_on_collection_event([](GC_EventType evtType) {
if (GC_EVENT_RECLAIM_START == evtType) {
GC_dump_for_graph(bdwgc_log_filename, bdwgc_log_phase);
}
});
#endif
#ifndef NDEBUG
setbuf(stdout, NULL);
setbuf(stderr, NULL);