Spdk/test/bdev
John Kariuki c5840d77b3 test/bdev_perf: disable zcopy by default
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>
2020-10-21 20:49:02 +00:00
..
bdevio test/bdevio: add a shutdown function 2020-10-12 08:26:07 +00:00
bdevperf test/bdev_perf: disable zcopy by default 2020-10-21 20:49:02 +00:00
bdev_raid.sh tests: Switch to $SPDK_TEST_STORAGE for writing out bigger tmp files 2020-05-20 14:17:02 +00:00
blockdev.sh scripts/setup remove flakiness from tests 2020-09-09 07:19:43 +00:00
Makefile test: move the bdev directory up one level 2018-03-23 19:45:09 -04:00
nbd_common.sh tests: Switch to $SPDK_TEST_STORAGE for writing out bigger tmp files 2020-05-20 14:17:02 +00:00