Commit eab96073 authored by GangCao's avatar GangCao Committed by Tomasz Zawadzki
Browse files

test/bdevperf: set a random seed for rand rw testing 



To fix issue: #2726

And also fix the examples/nvme/perf tool.

Change-Id: I4d1d362b7c1096d27a2d431851462d7bd161df88
Signed-off-by: default avatarGangCao <gang.cao@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14911


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-by: default avatarwanghailiang <hailiangx.e.wang@intel.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <smatsumoto@nvidia.com>
Community-CI: Mellanox Build Bot
parent 2b5f264e

examples/nvme/perf/perf.c

+6 −2
Original line number Diff line number Diff line
@@ -744,9 +744,13 @@ register_file(const char *path) 
	entry->size_in_ios = size / g_io_size_bytes;

	entry->io_size_blocks = g_io_size_bytes / blklen;



	if (g_is_random && g_zipf_theta > 0) {

	if (g_is_random) {

		srand(getpid());

		entry->seed = rand();

		if (g_zipf_theta > 0) {

			entry->zipf = spdk_zipf_create(entry->size_in_ios, g_zipf_theta, 0);

		}

	}



	snprintf(entry->name, sizeof(entry->name), "%s", path);

test/bdev/bdevperf/bdevperf.c

+5 −0
Original line number Diff line number Diff line
@@ -1215,6 +1215,8 @@ end: 
static void

job_init_rw(struct bdevperf_job *job, enum job_config_rw rw)

{

	srand(getpid());



	switch (rw) {

	case JOB_CONFIG_RW_READ:

		job->rw_percentage = 100;
@@ -1225,16 +1227,19 @@ job_init_rw(struct bdevperf_job *job, enum job_config_rw rw) 
	case JOB_CONFIG_RW_RANDREAD:

		job->is_random = true;

		job->rw_percentage = 100;

		job->seed = rand();

		break;

	case JOB_CONFIG_RW_RANDWRITE:

		job->is_random = true;

		job->rw_percentage = 0;

		job->seed = rand();

		break;

	case JOB_CONFIG_RW_RW:

		job->is_random = false;

		break;

	case JOB_CONFIG_RW_RANDRW:

		job->is_random = true;

		job->seed = rand();

		break;

	case JOB_CONFIG_RW_VERIFY:

		job->verify = true;