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reduce cpu load by increasing sleep before ticking pqi and core

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This commit is contained in:
jolavillette 2020-05-09 20:35:20 +02:00
parent 4ead639e8c
commit 7c2efbc630
2 changed files with 58 additions and 51 deletions
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19
libretroshare/src/rsserver/p3face-server.cc
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@ -143,13 +143,14 @@ void RsServer::threadTick()
// if there is time left, we sleep
double timeToSleep = mTickInterval - mAvgRunDuration;
if (timeToSleep > 0)
{
// never sleep less than 50 ms
if (timeToSleep < 0.050)
timeToSleep = 0.050;
#ifdef TICK_DEBUG
RsDbg() << "TICK_DEBUG will sleep " << timeToSleep << " ms" << std::endl;
RsDbg() << "TICK_DEBUG will sleep " << (int) (1000 * timeToSleep) << " ms" << std::endl;
#endif
rstime::rs_usleep(timeToSleep * 1000000);
}
rstime::rs_usleep(timeToSleep * 1000000);
double ts = getCurrentTS();
mLastts = ts;
@ -229,12 +230,16 @@ void RsServer::threadTick()
// ticking is done, now compute new values of mLastRunDuration, mAvgRunDuration and mTickInterval
ts = getCurrentTS();
mLastRunDuration = ts - mLastts;
// low-pass filter and don't let mAvgRunDuration exceeds maxTickInterval
mAvgRunDuration = 0.1 * mLastRunDuration + 0.9 * mAvgRunDuration;
if (mAvgRunDuration > maxTickInterval)
mAvgRunDuration = maxTickInterval;
#ifdef TICK_DEBUG
RsDbg() << "TICK_DEBUG new mLastRunDuration " << mLastRunDuration << " mAvgRunDuration " << mAvgRunDuration << std::endl;
if (mLastRunDuration > WARN_BIG_CYCLE_TIME)
RsDbg() << "TICK_DEBUG excessively long lycle time " << mLastRunDuration << std::endl;
RsDbg() << "TICK_DEBUG excessively long cycle time " << mLastRunDuration << std::endl;
#endif
// if the core has returned that there is more to tick we decrease the ticking interval, else we increse it
@ -250,7 +255,7 @@ void RsServer::threadTick()
RsDbg() << "TICK_DEBUG new tick interval " << mTickInterval << std::endl;
#endif
// keep the tick interval within allowed limits
// keep the tick interval target within allowed limits
if (mTickInterval < minTickInterval)
mTickInterval = minTickInterval;
else if (mTickInterval > maxTickInterval)