如何实现一个垃圾收集器 - 知乎1

GCTraceTime(Info, gc) time("Step 0: Prologue", NULL);

if (!os::commit_memory((char*)_bitmap_region.start(), _bitmap_region.byte_size(), fa

log_warning(gc)("Could not commit native memory for marking bitmap, GC failed");

return;

}

DerivedPointerTable::clear();

}