4 * Userspace RCU library - test program
6 * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include <sys/types.h>
35 #include <urcu/arch.h>
37 #ifndef DYNAMIC_LINK_TEST
40 #define debug_yield_read()
44 static inline void loop_sleep(unsigned long loops
)
56 caa_cycles_t time1
, time2
;
57 caa_cycles_t time_tot
= 0;
60 for (i
= 0; i
< TESTS
; i
++) {
61 time1
= caa_get_cycles();
63 time2
= caa_get_cycles();
64 time_tot
+= time2
- time1
;
66 cpl
= ((double)time_tot
) / (double)TESTS
/ (double)LOOPS
;
68 printf("CALIBRATION : %g cycles per loop\n", cpl
);
69 printf("time_tot = %llu, LOOPS = %d, TESTS = %d\n",
70 (unsigned long long) time_tot
, LOOPS
, TESTS
);
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