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Add some instrumentation to keep track of dispatcher cost

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This commit is contained in:
Eelco Dolstra
2016-03-02 14:18:39 +01:00
parent 6beee0ab49
commit b98a061c24
4 changed files with 14 additions and 1 deletions
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8
src/hydra-queue-runner/dispatcher.cc
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@ -32,9 +32,16 @@ void State::dispatcher()
{
while (true) {
printMsg(lvlDebug, "dispatcher woken up");
nrDispatcherWakeups++;
auto now1 = std::chrono::steady_clock::now();
auto sleepUntil = doDispatch();
auto now2 = std::chrono::steady_clock::now();
dispatchTimeMs += std::chrono::duration_cast<std::chrono::milliseconds>(now2 - now1).count();
/* Sleep until we're woken up (either because a runnable build
is added, or because a build finishes). */
{
@ -44,7 +51,6 @@ void State::dispatcher()
std::chrono::duration_cast<std::chrono::seconds>(sleepUntil - std::chrono::system_clock::now()).count());
dispatcherWakeup_.wait_until(dispatcherWakeupCV, sleepUntil);
}
nrDispatcherWakeups++;
*dispatcherWakeup_ = false;
}
}