1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
// Driver program that measures the performance of synchronization
// $Id$
// mechanisms provided by ACE and the underlying OS.
#include "ace/Service_Config.h"
#include "ace/Service_Repository.h"
#include "ace/Synch.h"
#include "Options.h"
#include "Benchmark.h"
#if defined (ACE_HAS_THREADS)
class Benchmark_Test : public ACE_Service_Config
{
public:
Benchmark_Test (void);
int init (int argc, char **argv);
private:
void run_test (void);
int n_lwps_;
int orig_n_lwps_;
ACE_Sig_Adapter done_;
};
Benchmark_Test::Benchmark_Test (void)
: ACE_Service_Config (1), // Do not load default services
n_lwps_ (0),
orig_n_lwps_ (0),
done_ (ACE_Sig_Handler_Ex (ACE_Service_Config::end_reactor_event_loop))
{
ACE_Service_Config::reactor ()->register_handler (SIGINT, &this->done_);
}
void
Benchmark_Test::run_test (void)
{
// Tell the threads that we are not finished.
Benchmark::done (0);
// Allow thread(s) to make progress.
ACE_Service_Config::thr_mgr ()->resume_all ();
ACE_Time_Value timeout (options.sleep_time ());
ACE_DEBUG ((LM_DEBUG, "starting timer\n"));
options.start_timer ();
// Use Reactor as a timer (which can be interrupted by a signal).
ACE_Service_Config::run_reactor_event_loop (timeout);
options.stop_timer ();
ACE_DEBUG ((LM_DEBUG, "\nstopping timer\n"));
// Stop thread(s) from making any further progress.
ACE_Service_Config::thr_mgr ()->suspend_all ();
// Tell the threads that we are finished.
Benchmark::done (1);
ACE_DEBUG ((LM_DEBUG, "------------------------------------------------------------------------\n"));
ACE_DEBUG ((LM_DEBUG, "targ 0x%x (%s, %s, %s)\n"
"n_lwps_orig = %d, n_lwps_set = %d, n_lwps_end = %d\n",
options.t_flags (),
(options.t_flags () & THR_DETACHED) ? "THR_DETACHED" : "Not Detached",
(options.t_flags () & THR_BOUND) ? "THR_BOUND" : "Not Bound",
(options.t_flags () & THR_NEW_LWP) ? "THR_NEW_LWP" : "No New_LWP",
this->orig_n_lwps_, this->n_lwps_, ACE_Thread::getconcurrency ()));
int count = options.count ();
float rate = count / (float (options.sleep_time ()));
ACE_DEBUG ((LM_DEBUG, "to count = %d\nrate = %.3f ops/sec, per operation = %.2f usec\n",
count, rate, (1.0e6 / rate) / synch_count));
options.print_results ();
// Allow thread(s) to finish up.
ACE_Service_Config::thr_mgr ()->resume_all ();
// Wait for all the threads to exit.
ACE_Service_Config::thr_mgr ()->wait ();
options.init ();
}
// Initialize and run the benchmarks tests.
int
Benchmark_Test::init (int argc, char **argv)
{
options.parse_args (argc, argv);
// Open the service configurator and process the directives in the
// svc.conf file.
if (this->open (argv[0]) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "ACE_Service_Config::open failed\n%a", 1), -1);
ACE_Service_Repository_Iterator sri (*this->ACE_Service_Config::svc_rep ());
// Iteratively execute each service loaded in from the svc.conf
// file.
for (const ACE_Service_Record *sr;
sri.next (sr) != 0;
sri.advance ())
{
// This would greatly benefit from RTTI typesafe downcasting...
const ACE_Service_Type *type = sr->type ();
const void *obj = type->object ();
ACE_Service_Object *so = (ACE_Service_Object *) obj;
Benchmark *bp = (Benchmark *) so;
ACE_DEBUG ((LM_DEBUG, "\nstarting up %s\n", sr->name ()));
this->orig_n_lwps_ = ACE_Thread::getconcurrency ();
this->n_lwps_ = options.n_lwps ();
if (this->n_lwps_ > 0)
ACE_Thread::setconcurrency (this->n_lwps_);
// We should probably use a "barrier" here rather than
// THR_SUSPENDED since many OS platforms lack the ability to
// create suspended threads...
if (ACE_Service_Config::thr_mgr ()->spawn_n
(options.thr_count (), ACE_THR_FUNC (bp->svc_run),
(void *) bp, options.t_flags () | THR_SUSPENDED) == -1)
ACE_ERROR ((LM_ERROR, "%p\n%a", "couldn't spawn threads", 1));
this->run_test ();
}
return 0;
}
int
main (int argc, char *argv[])
{
Benchmark_Test benchmark_tester;
if (benchmark_tester.init (argc, argv) == -1)
ACE_ERROR ((LM_ERROR, "%p\n%a", "open", 1));
return 0;
}
#else
int
main (int, char *[])
{
ACE_ERROR_RETURN ((LM_ERROR,
"This test requires the platform to have threads\n"), -1);
}
#endif /* ACE_HAS_THREADS */
|
