diff options
Diffstat (limited to 'lf_ring_buffer_test.c')
| -rw-r--r-- | lf_ring_buffer_test.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lf_ring_buffer_test.c b/lf_ring_buffer_test.c index dd56ca2..2f95af1 100644 --- a/lf_ring_buffer_test.c +++ b/lf_ring_buffer_test.c @@ -30,6 +30,7 @@ struct thread_params { lf_ring_buffer_t *ring; int n; int flags; + uint64_t dt; }; /* @@ -78,19 +79,20 @@ static uint64_t sequential_reads( lf_ring_buffer_t *ring, int n, int flags ) { void* writer_thread( void* param ) { struct thread_params *params = (struct thread_params*)param; //report( "write", params->n, sequential_writes( params->ring, params->n, params->flags ) ); - sequential_writes( params->ring, params->n, params->flags ); + params->dt = sequential_writes( params->ring, params->n, params->flags ); return NULL; } void* reader_thread( void* param ) { struct thread_params *params = (struct thread_params*)param; //report( "read ", params->n, sequential_reads( params->ring, params->n, params->flags ) ); - sequential_reads( params->ring, params->n, params->flags ); + params->dt = sequential_reads( params->ring, params->n, params->flags ); return NULL; } static void parallel_op( int op, int nt, lf_ring_buffer_t *ring, int n, int flags ) { int i; + uint64_t dt; pthread_t *threads = malloc( sizeof(pthread_t)*nt); struct thread_params *params = malloc( sizeof(struct thread_params)*nt); @@ -121,9 +123,13 @@ static void parallel_op( int op, int nt, lf_ring_buffer_t *ring, int n, int flag } } } + dt = 0; for(i=0; i<nt; i++) { pthread_join( threads[i], NULL ); + dt += params[i].dt; } + dt/=nt; + fprintf(stdout,"\t\t\t Mean : %4d [ms] => %7d [us] => %10d [ns]\t >>> %6d [ns/op]\n",(int)(dt/1000000), (int)(dt/1000), (int)dt, (int)(dt/(n/nt)) ); /* empty the ring */ free(threads); free(params); |