dune/common/timer.hh · 71035ad7585c7efa606f73e9ad8b1f649bbaad46 · Timo Koch / dune-common

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10 years ago

fa43f4bf

[PATCH] Use std::chrono::high_resolution_clock for the Timer class instead of getrusage(). · fa43f4bf

Steffen Persvold authored 10 years ago and

Markus Blatt committed 10 years ago

getrusage() is a very expensive system call and involves several
kernel locks. This prevents multithreaded applications from scaling
effectively. Using std:chrono::high_resolution_clock is portable
and very low cost in most cases.

fa43f4bf

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[PATCH] Use std::chrono::high_resolution_clock for the Timer class instead of getrusage().

Steffen Persvold authored 10 years ago and

Markus Blatt committed 10 years ago

getrusage() is a very expensive system call and involves several
kernel locks. This prevents multithreaded applications from scaling
effectively. Using std:chrono::high_resolution_clock is portable
and very low cost in most cases.