mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
8ccebc19ee
Enable UBLK_F_AUTO_BUF_REG support for ublk utility by argument `--auto_zc`, meantime support this feature in null, loop and stripe target code. Add function test generic_08 for covering basic UBLK_F_AUTO_BUF_REG feature. Also cover UBLK_F_AUTO_BUF_REG in stress_03, stress_04 and stress_05 test too. 'fio/t/io_uring -p0 /dev/ublkb0' shows that F_AUTO_BUF_REG can improve IOPS by 50% compared with F_SUPPORT_ZERO_COPY in my test VM. Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250520045455.515691-6-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
32 lines
707 B
Bash
Executable file
32 lines
707 B
Bash
Executable file
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
|
|
|
|
TID="generic_08"
|
|
ERR_CODE=0
|
|
|
|
if ! _have_feature "AUTO_BUF_REG"; then
|
|
exit "$UBLK_SKIP_CODE"
|
|
fi
|
|
|
|
_prep_test "generic" "test UBLK_F_AUTO_BUF_REG"
|
|
|
|
_create_backfile 0 256M
|
|
_create_backfile 1 256M
|
|
|
|
dev_id=$(_add_ublk_dev -t loop -q 2 --auto_zc "${UBLK_BACKFILES[0]}")
|
|
_check_add_dev $TID $?
|
|
|
|
if ! _mkfs_mount_test /dev/ublkb"${dev_id}"; then
|
|
_cleanup_test "generic"
|
|
_show_result $TID 255
|
|
fi
|
|
|
|
dev_id=$(_add_ublk_dev -t stripe --auto_zc "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
|
|
_check_add_dev $TID $?
|
|
_mkfs_mount_test /dev/ublkb"${dev_id}"
|
|
ERR_CODE=$?
|
|
|
|
_cleanup_test "generic"
|
|
_show_result $TID $ERR_CODE
|