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

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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>
This commit is contained in:
Seth Howell 2019-06-28 15:13:52 -07:00 committed by Ben Walker
parent dad4c43a88
commit 6e4f5e0b53
1 changed files with 9 additions and 0 deletions
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9
test/nvmf/host/perf.sh
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@ -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