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3fee1257ab
__run_io_and_remove() is used in several stress tests for running heavy IO vs. removing device meantime. However, sequential `readwrite` is taken in the fio script, which isn't correct, we should take random IO for saturating ublk device. Also turns out '--num_jobs=4' isn't stressful enough, so change it to '--num_jobs=$(nproc)'. Finally we don't cover single queue test in `test_stress_02.sh`, so add single queue test which can trigger request tag recycling easier. With above change the issue in #1 can be reproduced reliably in stress_02.sh. Link:https://lore.kernel.org/linux-block/mruqwpf4tqenkbtgezv5oxwq7ngyq24jzeyqy4ixzvivatbbxv@4oh2wzz4e6qn/ #1 Cc: Jared Holzman <jholzman@nvidia.com> Cc: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250519031620.245749-1-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
36 lines
793 B
Bash
Executable file
36 lines
793 B
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
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TID="stress_02"
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ERR_CODE=0
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if ! _have_program fio; then
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exit "$UBLK_SKIP_CODE"
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fi
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ublk_io_and_kill_daemon()
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{
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run_io_and_kill_daemon "$@"
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ERR_CODE=$?
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if [ ${ERR_CODE} -ne 0 ]; then
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echo "$TID failure: $*"
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_show_result $TID $ERR_CODE
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fi
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}
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_prep_test "stress" "run IO and kill ublk server"
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_create_backfile 0 256M
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_create_backfile 1 128M
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_create_backfile 2 128M
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for nr_queue in 1 4; do
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ublk_io_and_kill_daemon 8G -t null -q "$nr_queue" &
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ublk_io_and_kill_daemon 256M -t loop -q "$nr_queue" "${UBLK_BACKFILES[0]}" &
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ublk_io_and_kill_daemon 256M -t stripe -q "$nr_queue" "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
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wait
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done
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_cleanup_test "stress"
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_show_result $TID $ERR_CODE
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