AcoSail/kernel_optimize_test
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7cdaf587de
kernel_optimize_test/fs
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Xiaoguang Wang 7cdaf587de io_uring: avoid whole io_wq_work copy for requests completed inline 
If requests can be submitted and completed inline, we don't need to
initialize whole io_wq_work in io_init_req(), which is an expensive
operation, add a new 'REQ_F_WORK_INITIALIZED' to determine whether
io_wq_work is initialized and add a helper io_req_init_async(), users
must call io_req_init_async() for the first time touching any members
of io_wq_work.

I use /dev/nullb0 to evaluate performance improvement in my physical
machine:
  modprobe null_blk nr_devices=1 completion_nsec=0
  sudo taskset -c 60 fio  -name=fiotest -filename=/dev/nullb0 -iodepth=128
  -thread -rw=read -ioengine=io_uring -direct=1 -bs=4k -size=100G -numjobs=1
  -time_based -runtime=120

before this patch:
Run status group 0 (all jobs):
   READ: bw=724MiB/s (759MB/s), 724MiB/s-724MiB/s (759MB/s-759MB/s),
   io=84.8GiB (91.1GB), run=120001-120001msec

With this patch:
Run status group 0 (all jobs):
   READ: bw=761MiB/s (798MB/s), 761MiB/s-761MiB/s (798MB/s-798MB/s),
   io=89.2GiB (95.8GB), run=120001-120001msec

About 5% improvement.

Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-10 17:58:46 -06:00
..
9p
adfs
affs
afs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
autofs
befs
bfs
btrfs Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
cachefiles A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
ceph
cifs
coda
configfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
cramfs
crypto fscrypt updates for 5.8 2020-06-01 12:10:17 -07:00
debugfs
devpts
dlm
ecryptfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
efivarfs
efs
erofs mm: remove the prot argument from vm_map_ram 2020-06-02 10:59:11 -07:00
exfat fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
exportfs
ext2 fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
ext4 for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
f2fs f2fs: use attach/detach_page_private 2020-06-02 10:59:07 -07:00
fat for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
freevxfs
fscache
fuse Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
gfs2 mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
hfs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
hfsplus
hostfs
hpfs Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
hugetlbfs
iomap for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
isofs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
jbd2
jffs2
jfs fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
kernfs
lockd
minix
nfs mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
nfs_common
nfsd mm/writeback: replace PF_LESS_THROTTLE with PF_LOCAL_THROTTLE 2020-06-02 10:59:08 -07:00
nilfs2 for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
nls
notify A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
ntfs Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
ocfs2 for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
omfs fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
openpromfs
orangefs orangefs: use attach/detach_page_private 2020-06-02 10:59:08 -07:00
overlayfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
proc Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
pstore Merge branch 'uaccess.__copy_from_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-01 16:18:46 -07:00
qnx4
qnx6 fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
quota
ramfs
reiserfs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
romfs
squashfs Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
sysfs
sysv
tracefs
ubifs mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
udf for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
ufs
unicode
vboxsf
verity
xfs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
zonefs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
aio.c
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c Merge branch 'work.set_fs-exec' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-01 16:21:46 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c for-5.8/drivers-2020-06-01 2020-06-02 15:37:03 -07:00
buffer.c fs/buffer.c: use attach/detach_page_private 2020-06-02 10:59:07 -07:00
char_dev.c
compat_binfmt_elf.c Merge branch 'work.set_fs-exec' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-01 16:21:46 -07:00
compat.c
coredump.c
d_path.c
dax.c
dcache.c
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c
exec.c
fcntl.c
fhandle.c
file_table.c vfs: track per-sb writeback errors and report them to syncfs 2020-06-02 10:59:05 -07:00
file.c
filesystems.c
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
fsopen.c
inode.c
internal.h for-5.8/io_uring-2020-06-01 2020-06-02 15:42:50 -07:00
io_uring.c io_uring: avoid whole io_wq_work copy for requests completed inline 2020-06-10 17:58:46 -06:00
io-wq.c io_wq: add per-wq work handler instead of per work 2020-06-08 13:47:37 -06:00
io-wq.h io_uring: avoid whole io_wq_work copy for requests completed inline 2020-06-10 17:58:46 -06:00
ioctl.c
Kconfig
Kconfig.binfmt A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
libfs.c
locks.c
Makefile
mbcache.c
mount.h
mpage.c fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
namei.c
namespace.c Merge branch 'from-miklos' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-01 16:44:06 -07:00
no-block.c
nsfs.c
open.c Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c
seq_file.c
signalfd.c
splice.c for-5.8/io_uring-2020-06-01 2020-06-02 15:42:50 -07:00
stack.c
stat.c for-5.8/io_uring-2020-06-01 2020-06-02 15:42:50 -07:00
statfs.c
super.c for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
sync.c vfs: track per-sb writeback errors and report them to syncfs 2020-06-02 10:59:05 -07:00
timerfd.c
userfaultfd.c
utimes.c
xattr.c