Module: xenomai-forge
Branch: master
Commit: 9ee8ec177df7eb92d8faad476eb5db63e939a575
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=9ee8ec177df7eb92d8faad476eb5db63e939a575
Author: Philippe Gerum <r...@xenomai.org>
Date: Thu Nov 17 16:23:05 2011 +0100
testsuite/unit: introduce cond-wakeup-time
---
testsuite/unit/Makefile.am | 16 +++
testsuite/unit/Makefile.in | 49 ++++++++-
testsuite/unit/cond-wakeup-time.c | 211 +++++++++++++++++++++++++++++++++++++
3 files changed, 272 insertions(+), 4 deletions(-)
diff --git a/testsuite/unit/Makefile.am b/testsuite/unit/Makefile.am
index 8d22a58..1561eaa 100644
--- a/testsuite/unit/Makefile.am
+++ b/testsuite/unit/Makefile.am
@@ -3,6 +3,7 @@ testdir = @XENO_TEST_DIR@
CCLD = $(top_srcdir)/scripts/wrap-link.sh $(CC)
test_PROGRAMS = \
+ cond-wakeup-time \
wakeup-time \
rtdm
@@ -94,6 +95,21 @@ wakeup_time_LDADD = \
$(coredep_lib) \
-lpthread -lrt -lm
+cond_wakeup_time_SOURCES = cond-wakeup-time.c
+
+cond_wakeup_time_CPPFLAGS = \
+ @XENO_USER_CFLAGS@ \
+ -I$(top_srcdir)/include \
+ -Wno-missing-prototypes
+
+cond_wakeup_time_LDFLAGS = $(XENO_POSIX_WRAPPERS) @XENO_USER_LDFLAGS@
+
+cond_wakeup_time_LDADD = \
+ ../../lib/alchemy/libalchemy.la \
+ ../../lib/copperplate/libcopperplate.la \
+ $(coredep_lib) \
+ -lpthread -lrt -lm
+
rtdm_SOURCES = rtdm.c
rtdm_CPPFLAGS = \
diff --git a/testsuite/unit/Makefile.in b/testsuite/unit/Makefile.in
index 9cc35fe..83ec58e 100644
--- a/testsuite/unit/Makefile.in
+++ b/testsuite/unit/Makefile.in
@@ -35,7 +35,8 @@ POST_UNINSTALL = :
build_triplet = @build@
host_triplet = @host@
target_triplet = @target@
-test_PROGRAMS = wakeup-time$(EXEEXT) rtdm$(EXEEXT) $(am__EXEEXT_1)
+test_PROGRAMS = cond-wakeup-time$(EXEEXT) wakeup-time$(EXEEXT) \
+ rtdm$(EXEEXT) $(am__EXEEXT_1)
@XENO_COBALT_TRUE@am__append_1 = arith \
@XENO_COBALT_TRUE@ mutex-torture \
@XENO_COBALT_TRUE@ cond-torture \
@@ -93,6 +94,14 @@ cond_torture_OBJECTS = $(am_cond_torture_OBJECTS)
cond_torture_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
$(cond_torture_LDFLAGS) $(LDFLAGS) -o $@
+am_cond_wakeup_time_OBJECTS = \
+ cond_wakeup_time-cond-wakeup-time.$(OBJEXT)
+cond_wakeup_time_OBJECTS = $(am_cond_wakeup_time_OBJECTS)
+cond_wakeup_time_DEPENDENCIES = ../../lib/alchemy/libalchemy.la \
+ ../../lib/copperplate/libcopperplate.la $(am__DEPENDENCIES_1)
+cond_wakeup_time_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ $(cond_wakeup_time_LDFLAGS) $(LDFLAGS) -o $@
am__mutex_torture_SOURCES_DIST = mutex-torture.c
@XENO_COBALT_TRUE@am_mutex_torture_OBJECTS = \
@XENO_COBALT_TRUE@ mutex_torture-mutex-torture.$(OBJEXT)
@@ -131,11 +140,12 @@ LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS)
$(LIBTOOLFLAGS) \
--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
$(LDFLAGS) -o $@
SOURCES = $(arith_SOURCES) $(check_vdso_SOURCES) \
- $(cond_torture_SOURCES) $(mutex_torture_SOURCES) \
- $(rtdm_SOURCES) $(wakeup_time_SOURCES)
+ $(cond_torture_SOURCES) $(cond_wakeup_time_SOURCES) \
+ $(mutex_torture_SOURCES) $(rtdm_SOURCES) \
+ $(wakeup_time_SOURCES)
DIST_SOURCES = $(am__arith_SOURCES_DIST) \
$(am__check_vdso_SOURCES_DIST) \
- $(am__cond_torture_SOURCES_DIST) \
+ $(am__cond_torture_SOURCES_DIST) $(cond_wakeup_time_SOURCES) \
$(am__mutex_torture_SOURCES_DIST) $(rtdm_SOURCES) \
$(wakeup_time_SOURCES)
ETAGS = etags
@@ -367,6 +377,19 @@ wakeup_time_LDADD = \
$(coredep_lib) \
-lpthread -lrt -lm
+cond_wakeup_time_SOURCES = cond-wakeup-time.c
+cond_wakeup_time_CPPFLAGS = \
+ @XENO_USER_CFLAGS@ \
+ -I$(top_srcdir)/include \
+ -Wno-missing-prototypes
+
+cond_wakeup_time_LDFLAGS = $(XENO_POSIX_WRAPPERS) @XENO_USER_LDFLAGS@
+cond_wakeup_time_LDADD = \
+ ../../lib/alchemy/libalchemy.la \
+ ../../lib/copperplate/libcopperplate.la \
+ $(coredep_lib) \
+ -lpthread -lrt -lm
+
rtdm_SOURCES = rtdm.c
rtdm_CPPFLAGS = \
@XENO_USER_CFLAGS@ \
@@ -467,6 +490,9 @@ check-vdso$(EXEEXT): $(check_vdso_OBJECTS)
$(check_vdso_DEPENDENCIES)
cond-torture$(EXEEXT): $(cond_torture_OBJECTS) $(cond_torture_DEPENDENCIES)
@rm -f cond-torture$(EXEEXT)
$(cond_torture_LINK) $(cond_torture_OBJECTS) $(cond_torture_LDADD)
$(LIBS)
+cond-wakeup-time$(EXEEXT): $(cond_wakeup_time_OBJECTS)
$(cond_wakeup_time_DEPENDENCIES)
+ @rm -f cond-wakeup-time$(EXEEXT)
+ $(cond_wakeup_time_LINK) $(cond_wakeup_time_OBJECTS)
$(cond_wakeup_time_LDADD) $(LIBS)
mutex-torture$(EXEEXT): $(mutex_torture_OBJECTS) $(mutex_torture_DEPENDENCIES)
@rm -f mutex-torture$(EXEEXT)
$(mutex_torture_LINK) $(mutex_torture_OBJECTS) $(mutex_torture_LDADD)
$(LIBS)
@@ -487,6 +513,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arith-arith.Po@am__quote@
@AMDEP_TRUE@@am__include@
@am__quote@./$(DEPDIR)/check_vdso-check-vdso.Po@am__quote@
@AMDEP_TRUE@@am__include@
@am__quote@./$(DEPDIR)/cond_torture-cond-torture.Po@am__quote@
+@AMDEP_TRUE@@am__include@
@am__quote@./$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Po@am__quote@
@AMDEP_TRUE@@am__include@
@am__quote@./$(DEPDIR)/mutex_torture-mutex-torture.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rtdm-rtdm.Po@am__quote@
@AMDEP_TRUE@@am__include@
@am__quote@./$(DEPDIR)/wakeup_time-wakeup-time.Po@am__quote@
@@ -568,6 +595,20 @@ cond_torture-cond-torture.obj: cond-torture.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE)
$(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
$(cond_torture_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o
cond_torture-cond-torture.obj `if test -f 'cond-torture.c'; then $(CYGPATH_W)
'cond-torture.c'; else $(CYGPATH_W) '$(srcdir)/cond-torture.c'; fi`
+cond_wakeup_time-cond-wakeup-time.o: cond-wakeup-time.c
+@am__fastdepCC_TRUE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
$(cond_wakeup_time_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT
cond_wakeup_time-cond-wakeup-time.o -MD -MP -MF
$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Tpo -c -o
cond_wakeup_time-cond-wakeup-time.o `test -f 'cond-wakeup-time.c' || echo
'$(srcdir)/'`cond-wakeup-time.c
+@am__fastdepCC_TRUE@ $(am__mv)
$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Tpo
$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='cond-wakeup-time.c'
object='cond_wakeup_time-cond-wakeup-time.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE)
$(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
$(cond_wakeup_time_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o
cond_wakeup_time-cond-wakeup-time.o `test -f 'cond-wakeup-time.c' || echo
'$(srcdir)/'`cond-wakeup-time.c
+
+cond_wakeup_time-cond-wakeup-time.obj: cond-wakeup-time.c
+@am__fastdepCC_TRUE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
$(cond_wakeup_time_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT
cond_wakeup_time-cond-wakeup-time.obj -MD -MP -MF
$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Tpo -c -o
cond_wakeup_time-cond-wakeup-time.obj `if test -f 'cond-wakeup-time.c'; then
$(CYGPATH_W) 'cond-wakeup-time.c'; else $(CYGPATH_W)
'$(srcdir)/cond-wakeup-time.c'; fi`
+@am__fastdepCC_TRUE@ $(am__mv)
$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Tpo
$(DEPDIR)/cond_wakeup_time-cond-wakeup-time.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='cond-wakeup-time.c'
object='cond_wakeup_time-cond-wakeup-time.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE)
$(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
$(cond_wakeup_time_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o
cond_wakeup_time-cond-wakeup-time.obj `if test -f 'cond-wakeup-time.c'; then
$(CYGPATH_W) 'cond-wakeup-time.c'; else $(CYGPATH_W)
'$(srcdir)/cond-wakeup-time.c'; fi`
+
mutex_torture-mutex-torture.o: mutex-torture.c
@am__fastdepCC_TRUE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
$(mutex_torture_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT
mutex_torture-mutex-torture.o -MD -MP -MF
$(DEPDIR)/mutex_torture-mutex-torture.Tpo -c -o mutex_torture-mutex-torture.o
`test -f 'mutex-torture.c' || echo '$(srcdir)/'`mutex-torture.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/mutex_torture-mutex-torture.Tpo
$(DEPDIR)/mutex_torture-mutex-torture.Po
diff --git a/testsuite/unit/cond-wakeup-time.c
b/testsuite/unit/cond-wakeup-time.c
new file mode 100644
index 0000000..aaa8ea5
--- /dev/null
+++ b/testsuite/unit/cond-wakeup-time.c
@@ -0,0 +1,211 @@
+#include <sys/mman.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <alchemy/timer.h>
+#include <linux/unistd.h>
+#include <sys/mman.h>
+
+sem_t sem, cond_sem;
+
+pthread_t thread;
+
+pthread_cond_t cond;
+
+pthread_mutex_t mutex;
+
+static int flag, __condcw, __condw, __condcs, __conds;
+
+unsigned long long cond_wakeup_start;
+
+#define maxloops 100000
+#define maxdim 10000
+#define TYPE int
+
+pid_t get_tid(void)
+{
+ return syscall(__NR_gettid);
+}
+
+#if 0
+static TYPE dot(TYPE *a, TYPE *b, int n)
+{
+ int k = n - 1;
+ TYPE s = 0;
+ for(; k >= 0; k--)
+ s = s + a[k]*b[k];
+
+ return s;
+}
+
+TYPE crunch(void)
+{
+ TYPE a[maxdim], b[maxdim];
+ int i;
+
+ for (i = 0; i < maxdim; i++)
+ a[i] = b[i] = 3;
+
+ return dot(a, b, maxdim);
+}
+#else
+static inline void crunch(void)
+{
+}
+#endif
+
+long long traced = 0;
+
+void cleanup(void *dummy)
+{
+ pthread_mutex_unlock(&mutex);
+}
+
+void *body_cond(void *arg)
+{
+ long long t;
+
+ printf("body: pid=%d\n", get_tid());
+
+ pthread_cleanup_push(cleanup, NULL);
+
+ for (;;) {
+ int waited = 0;
+ pthread_mutex_lock(&mutex);
+ while (flag == 0) {
+ waited = 1;
+ pthread_cond_wait(&cond, &mutex);
+ t = __xn_rdtsc() - cond_wakeup_start;
+ if (__condcw && t == __condw / __condcw) {
+ traced = t;
+ xntrace_user_freeze(t, 0);
+ }
+ __condw += t;
+ __condcw++;
+ }
+ flag = 0;
+ pthread_mutex_unlock(&mutex);
+ crunch();
+ sem_post(&sem);
+ }
+
+ pthread_cleanup_pop(0);
+
+ return NULL;
+}
+
+void *body_sem(void *arg)
+{
+ long long t;
+
+ printf("body: pid=%d\n", get_tid());
+
+ for (;;) {
+ sem_wait(&cond_sem);
+ t = __xn_rdtsc() - cond_wakeup_start;
+#if 1
+ if (__condcw && t == __condw / __condcw) {
+ traced = t;
+ xntrace_user_freeze(t, 0);
+ }
+#endif
+ __condw += t;
+ __condcw++;
+ crunch();
+ pthread_mutex_lock(&mutex);
+ flag = 1;
+ pthread_cond_signal(&cond);
+ pthread_mutex_unlock(&mutex);
+ }
+
+ return NULL;
+}
+
+int main(int argc, char **argv)
+{
+ struct sched_param param;
+ pthread_attr_t thattr;
+ int count = 0, ret;
+ long long t;
+
+ mlockall(MCL_CURRENT | MCL_FUTURE);
+
+ printf("main: pid=%d\n", get_tid());
+ sem_init(&sem, 0, 0);
+ sem_init(&cond_sem, 0, 0);
+
+ pthread_mutex_init(&mutex, NULL);
+ pthread_cond_init(&cond, NULL);
+
+ param.sched_priority = 98;
+ ret = pthread_setschedparam(pthread_self(), SCHED_FIFO, ¶m);
+ if (ret)
+ printf("failed setting main priority(%d)\n", ret);
+
+ pthread_attr_init(&thattr);
+ memset(¶m, 0, sizeof(param));
+ pthread_attr_setinheritsched(&thattr, PTHREAD_EXPLICIT_SCHED);
+ pthread_attr_setschedpolicy(&thattr, SCHED_FIFO);
+ pthread_attr_setstacksize(&thattr, 65536);
+ param.sched_priority = 99;
+ pthread_attr_setschedparam(&thattr, ¶m);
+ pthread_create(&thread, &thattr, body_cond, NULL);
+
+ pthread_attr_destroy(&thattr);
+
+ while (++count < 3000) {
+ t = __xn_rdtsc();
+ pthread_mutex_lock(&mutex);
+ flag = 1;
+ pthread_cond_signal(&cond);
+ cond_wakeup_start = __xn_rdtsc();
+ pthread_mutex_unlock(&mutex);
+ __condcs++;
+ __conds += cond_wakeup_start - t;
+ sem_wait(&sem);
+ }
+
+ pthread_cancel(thread);
+ pthread_join(thread, NULL);
+
+ printf("average cond lock+signal time: %Ld ns\n",
rt_timer_tsc2ns(__conds) / __condcs);
+ printf("average cond unlock time: %Ld ns\n", rt_timer_tsc2ns(__condw) /
__condcw);
+
+ count = __condw = __condcw = 0;
+
+ if (traced)
+ printf("traced: %Ld\n", rt_timer_tsc2ns(traced));
+
+ pthread_attr_init(&thattr);
+ memset(¶m, 0, sizeof(param));
+ pthread_attr_setinheritsched(&thattr, PTHREAD_EXPLICIT_SCHED);
+ pthread_attr_setschedpolicy(&thattr, SCHED_FIFO);
+ pthread_attr_setstacksize(&thattr, 65536);
+ param.sched_priority = 99;
+ pthread_attr_setschedparam(&thattr, ¶m);
+ pthread_create(&thread, &thattr, body_sem, NULL);
+
+ while (++count < 3000) {
+ t = __xn_rdtsc();
+ cond_wakeup_start = t;
+ sem_post(&cond_sem);
+
+ pthread_mutex_lock(&mutex);
+ while (!flag)
+ pthread_cond_wait(&cond, &mutex);
+ flag = 0;
+ pthread_mutex_unlock(&mutex);
+ }
+
+ pthread_cancel(thread);
+ pthread_join(thread, NULL);
+
+ printf("average sem wakeup time: %Ld ns\n", rt_timer_tsc2ns(__condw) /
__condcw);
+
+ exit(0);
+}
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