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Don't calculate queue delay if delayed init is used.

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Queue calibration requires queue access during profiler construction. This
in turn requires construction of profiler data block, *which at this point
is underway*, because the profiler is being constructed.
This commit is contained in:
Bartosz Taudul 2019-06-19 17:29:04 +02:00
parent c98f1f0b6b
commit 351e220d30
1 changed files with 15 additions and 11 deletions
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26
client/TracyProfiler.cpp
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@ -2375,6 +2375,20 @@ void Profiler::CalibrateTimer()
void Profiler::CalibrateDelay()
{
enum { Iterations = 50000 };
auto mindiff = std::numeric_limits<int64_t>::max();
for( int i=0; i<Iterations * 10; i++ )
{
const auto t0i = GetTime();
const auto t1i = GetTime();
const auto dti = t1i - t0i;
if( dti > 0 && dti < mindiff ) mindiff = dti;
}
m_resolution = mindiff;
#ifdef TRACY_DELAYED_INIT
m_delay = m_resolution;
#else
enum { Events = Iterations * 2 }; // start + end
static_assert( Events < QueuePrealloc, "Delay calibration loop will allocate memory in queue" );
@ -2406,17 +2420,6 @@ void Profiler::CalibrateDelay()
const auto dt = t1 - t0;
m_delay = dt / Events;
auto mindiff = std::numeric_limits<int64_t>::max();
for( int i=0; i<Iterations * 10; i++ )
{
const auto t0i = GetTime();
const auto t1i = GetTime();
const auto dti = t1i - t0i;
if( dti > 0 && dti < mindiff ) mindiff = dti;
}
m_resolution = mindiff;
enum { Bulk = 1000 };
moodycamel::ConsumerToken token( GetQueue() );
int left = Events;
@ -2428,6 +2431,7 @@ void Profiler::CalibrateDelay()
left -= (int)sz;
}
assert( GetQueue().size_approx() == 0 );
#endif
}
void Profiler::SendCallstack( int depth, const char* skipBefore )