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// $Id$
//==============================================================
/**
* @file client.cpp
*
* This is a simple client test program that interact with the RoundTrip
* component implementation. The single threaded client issues
* two-way operations, the total latency (response time) is measured
* NOTE: this client implementation has been adapted from the
* $TAO_ROOT/performance-results/Latency/Single_Threaded/
*
* @author Arvind S. Krishna <arvindk@dre.vanderbilt.edu>
*/
//==============================================================
#include "RoundTripC.h"
#include "tao/Strategies/advanced_resource.h"
#include "ace/Get_Opt.h"
#include "ace/High_Res_Timer.h"
#include "ace/Sched_Params.h"
#include "ace/Stats.h"
#include "ace/Sample_History.h"
#include "ace/OS_NS_errno.h"
const char *ior = "file://test.ior";
int niterations = 100;
int do_dump_history = 0;
int
parse_args (int argc, char *argv[])
{
//parse arguments
ACE_Get_Opt get_opts (argc, argv, "hxk:i:");
char c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'h':
do_dump_history = 1;
break;
case 'k':
ior = get_opts.opt_arg ();
break;
case 'i':
niterations = ACE_OS::atoi (get_opts.opt_arg ());
break;
case '?':
default:
/* Could be any other parameter like -ORBSvcConf file so ignore */
break;
}
// Indicates sucessful parsing of the command line
return 0;
}
void
set_priority ()
{
int priority =
(ACE_Sched_Params::priority_min (ACE_SCHED_FIFO)
+ ACE_Sched_Params::priority_max (ACE_SCHED_FIFO)) / 2;
// Enable FIFO scheduling, e.g., RT scheduling class on Solaris.
if (ACE_OS::sched_params (ACE_Sched_Params (ACE_SCHED_FIFO,
priority,
ACE_SCOPE_PROCESS)) != 0)
{
if (ACE_OS::last_error () == EPERM)
{
ACE_DEBUG ((LM_DEBUG,
"client (%P|%t): user is not superuser, "
"test runs in time-shared class\n"));
}
else
ACE_ERROR ((LM_ERROR,
"client (%P|%t): sched_params failed\n"));
}
}
int
main (int argc, char *argv[])
{
try
{
//set priority on the platform
set_priority();
// Initialize orb
CORBA::ORB_var orb = CORBA::ORB_init (argc,
argv,
"");
if (parse_args(argc, argv) == -1)
{
ACE_DEBUG ((LM_DEBUG, "Error parsing Arguments\n"));
return -1;
}
// Resolve HomeFinder interface
CORBA::Object_var obj
= orb->string_to_object (ior);
Benchmark::RoundTripHome_var home
= Benchmark::RoundTripHome::_narrow (obj.in ());
if (CORBA::is_nil (home.in ()))
ACE_ERROR_RETURN ((LM_ERROR, "Unable to acquire TestHome objref\n"), -1);
Benchmark::RoundTrip_var test
= home->create ();
//Get the RoundTrip reference
Benchmark::LatencyTest_var round_trip = test->provide_latency ();
//Warmup the System by making some empty calls
long start = 0L;
for (int j = 0; j < 100; ++j)
{
round_trip->makeCall (start);
}
///// Start Test ////////////////////////////////////////////
ACE_Sample_History history (niterations);
ACE_hrtime_t test_start = ACE_OS::gethrtime ();
for (int i = 0; i < niterations; ++i)
{
ACE_hrtime_t start = ACE_OS::gethrtime ();
//Test value to be sent to the server
long test = 0;
(void) round_trip->makeCall (test);
ACE_hrtime_t now = ACE_OS::gethrtime ();
history.sample (now - start);
}
ACE_hrtime_t test_end = ACE_OS::gethrtime ();
ACE_DEBUG ((LM_DEBUG, "test finished\n"));
ACE_DEBUG ((LM_DEBUG, "High resolution timer calibration...."));
ACE_UINT32 gsf = ACE_High_Res_Timer::global_scale_factor ();
ACE_DEBUG ((LM_DEBUG, "done\n"));
if (do_dump_history)
{
history.dump_samples ("HISTORY", gsf);
}
ACE_Basic_Stats stats;
history.collect_basic_stats (stats);
stats.dump_results ("Total", gsf);
ACE_Throughput_Stats::dump_throughput ("Total", gsf,
test_end - test_start,
stats.samples_count ());
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Exception Handled:");
return 1;
}
return 0;
}
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