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Reduce overhead/slowdown #2

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mbeckersys opened this issue Oct 23, 2018 · 1 comment

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mbeckersys commented Oct 23, 2018 •

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Execution of a program is drastically slowed down, determine cause and reduce overhead.

Evidence: stress-ng -c1 --cpu-ops=500:

standalone: ~2s
valgrind-nullgrind: ~9s
valgrind-memcheck: ~31s
valgrind-ws (--ws-every=1E6): ~227s
valgrind-ws (--ws-every=1E6) --ws-peak-detect=yes): ~226s

Peak detection overhead seems just fine, but the general overhead is unsatisfying.

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mbeckersys added the enhancement label

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          speedup x2 for issue #2

285efa4

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mbeckersys commented Oct 23, 2018

valgrind-ws (--ws-every=1E6): ~101s
valgrind-ws (--ws-every=1E6 --ws-peak-detect=yes): ~103s

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