96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
/*
|
|
Copyright (c) 2010-2011, Intel Corporation
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
* Neither the name of Intel Corporation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
|
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
|
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "instrument.h"
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <iomanip>
|
|
#include <sstream>
|
|
#include <string>
|
|
#include <map>
|
|
|
|
struct CallInfo {
|
|
CallInfo() { count = laneCount = allOff = 0; }
|
|
int count;
|
|
int laneCount;
|
|
int allOff;
|
|
};
|
|
|
|
static std::map<std::string, CallInfo> callInfo;
|
|
|
|
int countbits(uint64_t i) {
|
|
int ret = 0;
|
|
while (i) {
|
|
if (i & 0x1)
|
|
++ret;
|
|
i >>= 1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
// Callback function that ispc compiler emits calls to when --instrument
|
|
// command-line flag is given while compiling.
|
|
void
|
|
ISPCInstrument(const char *fn, const char *note, int line, uint64_t mask) {
|
|
std::stringstream s;
|
|
s << fn << "(" << std::setfill('0') << std::setw(4) << line << ") - "
|
|
<< note;
|
|
|
|
// Find or create a CallInfo instance for this callsite.
|
|
CallInfo &ci = callInfo[s.str()];
|
|
|
|
// And update its statistics...
|
|
++ci.count;
|
|
if (mask == 0)
|
|
++ci.allOff;
|
|
ci.laneCount += countbits(mask);
|
|
}
|
|
|
|
|
|
void
|
|
ISPCPrintInstrument() {
|
|
// When program execution is done, go through the stats and print them
|
|
// out. (This function is called by ao.cpp).
|
|
std::map<std::string, CallInfo>::iterator citer = callInfo.begin();
|
|
while (citer != callInfo.end()) {
|
|
CallInfo &ci = citer->second;
|
|
float activePct = 100.f * ci.laneCount / (4.f * ci.count);
|
|
float allOffPct = 100.f * ci.allOff / ci.count;
|
|
printf("%s: %d calls (%d / %.2f%% all off!), %.2f%% active lanes\n",
|
|
citer->first.c_str(), ci.count, ci.allOff, allOffPct,
|
|
activePct);
|
|
++citer;
|
|
}
|
|
}
|