OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
linux/drivers/block
History
Jens Axboe 0864fe09ab null_blk: unalign call_single_data 
Commit 966a967116 randomly added alignment to this structure, but
it's actually detrimental to performance of null_blk. Test case:

Running on both the home and remote node shows a ~5% degradation
in performance.

While in there, move blk_status_t to the hole after the integer tag
in the nullb_cmd structure. After this patch, we shrink the size
from 192 to 152 bytes.

Fixes: 966a967116 ("smp: Avoid using two cache lines for struct call_single_data")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 		2017-12-20 13:16:33 -07:00
..
aoe treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
drbd Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
mtip32xx Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
paride Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
rsxx treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
xen-blkback
…
zram drivers/block/zram/zram_drv.c: make zram_page_end_io() static 2017-11-15 18:21:05 -08:00
DAC960.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
DAC960.h treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
Kconfig libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
Makefile
…
amiflop.c amifloppy: Convert timers to use timer_setup() 2017-11-14 20:11:57 -07:00
ataflop.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
brd.c libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
cryptoloop.c
…
floppy.c block/floppy: Convert callback to pass timer_list 2017-11-14 20:10:35 -07:00
loop.c
…
loop.h
…
nbd.c Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
null_blk.c null_blk: unalign call_single_data 2017-12-20 13:16:33 -07:00
pktcdvd.c
…
ps3disk.c
…
ps3vram.c
…
rbd.c rbd: default to single-major device number scheme 2017-11-13 16:33:08 +01:00
rbd_types.h
…
skd_main.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
skd_s1120.h
…
smart1,2.h
…
sunvdc.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
swim.c
…
swim3.c treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
swim_asm.S
…
sx8.c
…
umem.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
umem.h
…
virtio_blk.c
…
xen-blkfront.c
…
xsysace.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
z2ram.c
…