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GSPerfMon.cpp
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GSPerfMon.cpp
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/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2021 PCSX2 Dev Team
*
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "PrecompiledHeader.h"
#include "GSPerfMon.h"
GSPerfMon::GSPerfMon()
: m_frame(0)
, m_lastframe(0)
, m_count(0)
{
memset(m_counters, 0, sizeof(m_counters));
memset(m_stats, 0, sizeof(m_stats));
memset(m_total, 0, sizeof(m_total));
memset(m_begin, 0, sizeof(m_begin));
}
void GSPerfMon::Put(counter_t c, double val)
{
#ifndef DISABLE_PERF_MON
if (c == Frame)
{
#if defined(__unix__) || defined(__APPLE__)
struct timespec ts;
# ifdef CLOCK_MONOTONIC_RAW
clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
# else
clock_gettime(CLOCK_MONOTONIC, &ts);
# endif
u64 now = (u64)ts.tv_sec * (u64)1e6 + (u64)ts.tv_nsec / (u64)1e3;
#else
clock_t now = clock();
#endif
if (m_lastframe != 0)
{
m_counters[c] += (now - m_lastframe) * 1000 / CLOCKS_PER_SEC;
}
m_lastframe = now;
m_frame++;
m_count++;
}
else
{
m_counters[c] += val;
}
#endif
}
void GSPerfMon::Update()
{
#ifndef DISABLE_PERF_MON
if (m_count > 0)
{
for (size_t i = 0; i < std::size(m_counters); i++)
{
m_stats[i] = m_counters[i] / m_count;
}
m_count = 0;
}
memset(m_counters, 0, sizeof(m_counters));
#endif
}
void GSPerfMon::Start(int timer)
{
#ifndef DISABLE_PERF_MON
m_start[timer] = __rdtsc();
if (m_begin[timer] == 0)
{
m_begin[timer] = m_start[timer];
}
#endif
}
void GSPerfMon::Stop(int timer)
{
#ifndef DISABLE_PERF_MON
if (m_start[timer] > 0)
{
m_total[timer] += __rdtsc() - m_start[timer];
m_start[timer] = 0;
}
#endif
}
int GSPerfMon::CPU(int timer, bool reset)
{
int percent = (int)(100 * m_total[timer] / (__rdtsc() - m_begin[timer]));
if (reset)
{
m_begin[timer] = 0;
m_start[timer] = 0;
m_total[timer] = 0;
}
return percent;
}