diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/bench/find-bit-bench.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/tools/perf/bench/find-bit-bench.c b/tools/perf/bench/find-bit-bench.c index 73b5bcc5946a..7e25b0e413f6 100644 --- a/tools/perf/bench/find-bit-bench.c +++ b/tools/perf/bench/find-bit-bench.c @@ -54,14 +54,13 @@ static bool asm_test_bit(long nr, const unsigned long *addr) static int do_for_each_set_bit(unsigned int num_bits) { - unsigned long *to_test = bitmap_alloc(num_bits); + unsigned long *to_test = bitmap_zalloc(num_bits); struct timeval start, end, diff; u64 runtime_us; struct stats fb_time_stats, tb_time_stats; double time_average, time_stddev; unsigned int bit, i, j; unsigned int set_bits, skip; - unsigned int old; init_stats(&fb_time_stats); init_stats(&tb_time_stats); @@ -70,10 +69,13 @@ static int do_for_each_set_bit(unsigned int num_bits) bitmap_zero(to_test, num_bits); skip = num_bits / set_bits; for (i = 0; i < num_bits; i += skip) - set_bit(i, to_test); + __set_bit(i, to_test); for (i = 0; i < outer_iterations; i++) { - old = accumulator; +#ifndef NDEBUG + unsigned int old = accumulator; +#endif + gettimeofday(&start, NULL); for (j = 0; j < inner_iterations; j++) { for_each_set_bit(bit, to_test, num_bits) @@ -85,7 +87,9 @@ static int do_for_each_set_bit(unsigned int num_bits) runtime_us = diff.tv_sec * USEC_PER_SEC + diff.tv_usec; update_stats(&fb_time_stats, runtime_us); +#ifndef NDEBUG old = accumulator; +#endif gettimeofday(&start, NULL); for (j = 0; j < inner_iterations; j++) { for (bit = 0; bit < num_bits; bit++) { |