Commit 6e4f5e0b authored Jun 28, 2019 by Seth Howell Committed by Ben Walker Jul 01, 2019

test/nvmf: don't use full disk size in host perf.



When we have a really large disk, setting up a nested lvol across the
entire drive can actually be quite time consuming. When trying to run
this test on an 800G p3700 I was actually getting timeouts on the rpcs
when creating the nested lvolstore. By only taking the first 20G of the
drive to set up the stores, we end up with a much quicker test and
conveniently get rid of the timeouts I was facing.

Change-Id: Ifd43c21c66bc77b615da9b0f421e95337b4c7019
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459849


Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

parent dad4c43a

test/nvmf/host/perf.sh

+9 −0

Original line number	Diff line number	Diff line
		@@ -45,11 +45,20 @@ if [ $RUN_NIGHTLY -eq 1 ]; then
		if [ -n "$local_nvme_trid" ]; then
		ls_guid=$($rpc_py construct_lvol_store Nvme0n1 lvs_0)
		get_lvs_free_mb $ls_guid
		# We don't need to create an lvol larger than 20G for this test.
		# decreasing the size of the nested lvol allows us to take less time setting up
		#before running I/O.
		if [ $free_mb -gt 20480 ]; then
		free_mb=20480
		fi
		lb_guid=$($rpc_py construct_lvol_bdev -u $ls_guid lbd_0 $free_mb)

		# Create lvol bdev for nested lvol stores
		ls_nested_guid=$($rpc_py construct_lvol_store $lb_guid lvs_n_0)
		get_lvs_free_mb $ls_nested_guid
		if [ $free_mb -gt 20480 ]; then
		free_mb=20480
		fi
		lb_nested_guid=$($rpc_py construct_lvol_bdev -u $ls_nested_guid lbd_nest_0 $free_mb)
		$rpc_py nvmf_subsystem_create nqn.2016-06.io.spdk:cnode1 -a -s SPDK00000000000001
		for bdev in $lb_nested_guid; do