Prior to this patch the bdevperf application enabled using the zcopy API by default. This means that on bdevs that don't natively support zcopy the API emulates zero-copy by allocating a buffer. In my test environment, I measured a 25% decrease in IOPS when zcopy was enabled. This patch changes the default value so that zcopy is disabled by default. For bdevs that support zcopy, use the -Z flag to enable using zcopy API. Change-Id: Ib7e5c24f76eb16ffef038687daca58c0ffad1c1c Signed-off-by: John Kariuki <John.K.Kariuki@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4324 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> |
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bdevperf.c | ||
bdevperf.py | ||
common.sh | ||
conf.json | ||
Makefile | ||
test_config.sh |