static void
collectLocalMemoryStats(QueryDesc *queryDesc, int eflags)
{
BackendMemoryStat *myStat;
MemoryContextIteratorState state;
if (prev_ExecutorStart)
prev_ExecutorStart(queryDesc, eflags);
else
standard_ExecutorStart(queryDesc, eflags);
if (MyBackendProcNo < 0)
{
on_proc_exit(cleanupMyStat, 0);
MyBackendProcNo = MyProc->pgprocno;
Assert(MyBackendProcNo >= 0);
}
if (checkTick() == false)
return;
Assert(MyBackendProcNo < PROCARRAY_MAXPROCS);
myStat = NthBMS(MyBackendProcNo);
/*
* do not wait if reader currently locks our slot
*/
if (LWLockConditionalAcquire(myStat->lock, LW_EXCLUSIVE) == false)
return;
myStat->pid = MyProc->pid;
myStat->nContext = 0;
state.context = TopMemoryContext;
state.level = 0;
/*
* walk through all memory context and fill stat table in shared memory
*/
do {
MemoryContextStat *mcs = myStat->stats + myStat->nContext;
int namelen = strlen(state.context->name);
if (namelen > NAMEDATALEN - 1)
namelen = NAMEDATALEN - 1;
memcpy(mcs->name.data, state.context->name, namelen);
mcs->name.data[namelen] = '\0';
mcs->level = state.level;
getMemoryContextStat(state.context, &mcs->stat);
myStat->nContext++;
iterateMemoryContext(&state);
} while (state.context && myStat->nContext < N_MC_STAT);
LWLockRelease(myStat->lock);
}
void zTCPTask::checkSignal(const zRTime &ct)
{
///Zebra::logger->debug("zTCPTask::checkSignal");
if (ifCheckSignal() && checkInterval(ct))
{
if (checkTick())
{
//测试信号在指定时间范围内没有返回
Zebra::logger->error("套接口检查测试信号失败");
Terminate(zTCPTask::terminate_active);
}
else
{
//发送测试信号
Cmd::t_NullCmd tNullCmd;
//Zebra::logger->debug("服务端发送测试信号");
if (sendCmd(&tNullCmd,sizeof(tNullCmd)))
setTick();
}
}
}
void cStream::runChecks()
{
register int j;
/* --- SETUP --- determine precision and check timing --- */
cout << HLINE
<< "STREAM version $Revision: 5.8 $"
<< endl
<< HLINE ;
BytesPerWord = sizeof(double);
cout << "This system uses "
<< BytesPerWord
<< " bytes per DOUBLE PRECISION word."
<< endl
<< HLINE
<< "Array size = "
<< N
<< ", Offset = "
<< OFFSET
<< endl
<< "Total memory required = "
<< ( 3.0 * BytesPerWord ) * ( ( double )N / 1048576.0 )
<< " MB."
<< endl
<< "Each test is run "
<< NTIMES
<< " times, but only"
<< endl
<< "the *best* time for each is used."
<< endl
<< HLINE;
/* Get initial value for system clock. */
for (j=0; j<N; j++)
{
a[j] = 1.0;
b[j] = 2.0;
c[j] = 0.0;
}
cout << HLINE;
#ifdef vs2005
cout << "Timer frequency (Hz): " << freq << endl;
quantum = checkTick();
#else
cout << "Timer frequency (Hz): " << CLOCKS_PER_SEC << endl;
quantum = checkTick();
#endif
if( quantum >= 1 )
{
cout << "Your clock granularity/precision appears to be "
<< quantum
<< " microseconds."
<< endl;
}
else
{
cout << "Your clock granularity appears to be "
<< "less than one microsecond."
<< endl;
quantum = 1;
}
QueryPerformanceCounter( ( LARGE_INTEGER *)&start );
for (j = 0; j < N; j++)
{
a[j] = 2.0E0 * a[j];
}
QueryPerformanceCounter( ( LARGE_INTEGER *)&stop );
t = 1.0E6 * ( stop - start ) / freq;
cout << "Each test below will take on the order of "
<< ( int )t
<< " microseconds."
<< endl
<< " (= "
<< ( int )( t / quantum )
<< " clock ticks)"
<< endl
<< "Increase the size of the arrays if this shows that"
<< endl
<< "you are not getting at least 20 clock ticks per test."
<< endl
<< HLINE
<< "WARNING -- The above is only a rough guideline."
<< endl
<< "For best results, please be sure you know the"
<< endl
<< "precision of your system timer."
<< endl
<< HLINE;
} // void cStream::runChecks()
