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#include "Task_Stats.h"
#include "ace/Log_Msg.h"
#if !defined (__ACE_INLINE__)
#include "Task_Stats.inl"
#endif /* __ACE_INLINE__ */
Base_Time::Base_Time (void)
{
base_time_ = ACE_OS::gethrtime ();
}
Task_Stats::Task_Stats (size_t max_samples)
: base_time_(0),
end_time_ (0),
max_samples_ (max_samples),
samples_count_ (0),
time_inv_ (0),
time_exec_ (0),
exec_time_min_ (0),
exec_time_min_at_ (0),
exec_time_max_ (0),
exec_time_max_at_(0),
sum_ (0),
sum2_ (0)
{
}
Task_Stats::~Task_Stats (void)
{
delete[] this->time_inv_;
delete[] this->time_exec_;
}
int
Task_Stats::init (void)
{
ACE_NEW_RETURN (this->time_inv_, ACE_UINT64[this->max_samples_], -1);
ACE_NEW_RETURN (this->time_exec_, ACE_UINT64[this->max_samples_], -1);
return 0;
}
void
Task_Stats::base_time (ACE_hrtime_t time)
{
base_time_ = time;
}
void
Task_Stats::end_time (ACE_hrtime_t time)
{
end_time_ = time;
}
void
Task_Stats::dump_samples (
const ACE_TCHAR *file_name,
const ACE_TCHAR *msg,
ACE_High_Res_Timer::global_scale_factor_type scale_factor)
{
FILE* output_file = ACE_OS::fopen (file_name, "w");
// first dump what the caller has to say.
ACE_OS::fprintf (output_file, "%s\n", ACE_TEXT_ALWAYS_CHAR (msg));
// next, compose and dump what we want to say.
// calc throughput.
ACE_TCHAR out_msg[BUFSIZ];
ACE_hrtime_t elapsed_microseconds = (end_time_ - base_time_) / scale_factor;
double elapsed_seconds =
ACE_CU64_TO_CU32(elapsed_microseconds) / 1000000.0;
double throughput =
double(samples_count_) / elapsed_seconds;
ACE_OS::sprintf (out_msg, ACE_TEXT("#Throughtput: %f\n"), throughput);
ACE_OS::fprintf (output_file, ACE_TEXT("%s\n"),out_msg);
// dump latency stats.
this->dump_latency_stats (out_msg, scale_factor);
ACE_OS::fprintf (output_file, "%s\n", ACE_TEXT_ALWAYS_CHAR (out_msg));
ACE_OS::fprintf (output_file, "#Invocation time \t Execution time\n");
// dump the samples recorded.
for (size_t i = 0; i != this->samples_count_; ++i)
{
ACE_UINT64 x = this->time_inv_[i] / scale_factor;
ACE_UINT32 val_1 = ACE_CU64_TO_CU32 (x);
ACE_UINT64 y = this->time_exec_[i] / scale_factor;
ACE_UINT32 val_2 = ACE_CU64_TO_CU32 (y);
ACE_OS::fprintf (output_file, "%u \t %u\n",val_1, val_2);
}
ACE_OS::fclose (output_file);
}
void
Task_Stats::dump_latency_stats (
ACE_TCHAR *out_msg,
ACE_High_Res_Timer::global_scale_factor_type sf)
{
if (this->samples_count_ == 0u)
{
ACE_OS::sprintf (out_msg,
ACE_TEXT ("# no data collected\n"));
return;
}
ACE_UINT64 avg = this->sum_ / this->samples_count_;
ACE_UINT64 dev =
this->sum2_ / this->samples_count_ - avg * avg;
ACE_UINT64 l_min_ = this->exec_time_min_ / sf;
ACE_UINT32 l_min = ACE_CU64_TO_CU32 (l_min_);
ACE_UINT64 l_max_ = this->exec_time_max_ / sf;
ACE_UINT32 l_max = ACE_CU64_TO_CU32 (l_max_);
ACE_UINT32 l_avg = ACE_CU64_TO_CU32(avg / sf);
ACE_UINT32 l_dev = ACE_CU64_TO_CU32(dev / (sf * sf));
ACE_UINT64 tmin_ = this->time_inv_[0] / sf;
ACE_UINT32 tmin = ACE_CU64_TO_CU32 (tmin_);
ACE_UINT64 tmax_ = this->time_inv_[samples_count_-1] / sf;
ACE_UINT32 tmax = ACE_CU64_TO_CU32 (tmax_);
ACE_OS::sprintf(out_msg,
ACE_TEXT ("#latency : %u[%d]/%u/%u[%d]/%u (min/avg/max/var^2)\n #first invocation time = %u, last invocation time = %u\n"),
l_min, this->exec_time_min_at_,
l_avg,
l_max, this->exec_time_max_at_,
l_dev,
tmin,tmax);
}
#if defined (ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION)
template ACE_Singleton<Base_Time, TAO_SYNCH_MUTEX> *ACE_Singleton<Base_Time, TAO_SYNCH_MUTEX>::singleton_;
#endif /* ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION */
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