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ZTS: random_readwrite test doesn't run correctly 

This test uses fio's bssplit mechanism to choose io sizes for the test,
leaving the PERF_IOSIZES variable empty. Because that variable is
empty, the innermost loop in do_fio_run_impl is never executed, and as
a result, this test does the setup but collects no data. Setting the
variable to "bssplit" allows performance data to be gathered.

Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: John Wren Kennedy <john.kennedy@delphix.com>
Closes #14163
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John Wren Kennedy 2022-11-10 15:00:04 -07:00 committed by GitHub
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tests/zfs-tests/tests/perf/regression/random_readwrite.ksh
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@ -60,7 +60,7 @@ export TOTAL_SIZE=$(($(get_prop avail $PERFPOOL) * 3 / 2))
# Variables specific to this test for use by fio. # Variables specific to this test for use by fio.
export PERF_NTHREADS=${PERF_NTHREADS:-'32 64'} export PERF_NTHREADS=${PERF_NTHREADS:-'32 64'}
export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'} export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
export PERF_IOSIZES='' # bssplit used instead export PERF_IOSIZES='bssplit' # bssplit used instead of fixed sizes
export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'} export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
# Layout the files to be used by the readwrite tests. Create as many files # Layout the files to be used by the readwrite tests. Create as many files