github/open-cas-linux
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
6c6bc95b29
open-cas-linux/modules/cas_cache
History
Jan Musial 6c6bc95b29 Use blk_plug mechanism in bottom block adapter 
This is a suboptimal solution to CAS on top of MD RAID1 device. If using
only submit_bio API RAID1 would process all IOs in single thread.
Plugging bypasses this thread and processess IOs in blk_finish_plug
caller context improving performance drastically.

Testing showed no negative impact to other usecases and it's a thing
that Linux does in AIO, so it's vetted and proven to work.

Signed-off-by: Jan Musial <jan.musial@intel.com>
2021-08-18 11:42:37 +02:00
..
utils Remove remains of atomic writes support 2021-08-16 16:01:21 +02:00
volume Use blk_plug mechanism in bottom block adapter 2021-08-18 11:42:37 +02:00
.gitignore Initial commit 2019-03-29 08:45:50 +01:00
cas_cache.h Remove remains of atomic writes support 2021-08-16 16:01:21 +02:00
classifier_defs.h Classifier alignment 2021-03-22 08:26:55 +01:00
classifier.c OCF update (removed configurable eviction policy) 2021-06-21 22:56:51 +02:00
classifier.h Update copyright statements (2021) 2021-01-21 13:15:38 +01:00
context.c Remove remains of atomic writes support 2021-08-16 16:01:21 +02:00
context.h Split big IO requests 2021-07-07 18:52:22 +02:00
control.c Update copyright statements (2021) 2021-01-21 13:15:38 +01:00
control.h Update copyright statements (2021) 2021-01-21 13:15:38 +01:00
layer_cache_management.c Merge pull request #921 from mmichal10/remove-atomics 2021-08-18 09:19:53 +02:00
layer_cache_management.h Remove remains of atomic writes support 2021-08-16 16:01:21 +02:00
linux_kernel_version.h Add detection of ktime_get_real_ts64 vs getnstimeofday 2021-03-26 13:46:09 +01:00
main.c Remove upgrade-in-flight feature 2021-08-11 20:33:16 +02:00
Makefile Update copyright statements (2021) 2021-01-21 13:15:38 +01:00
ocf_env_headers.h Update copyright statements (2021) 2021-01-21 13:15:38 +01:00
ocf_env.c Update OCF 2021-06-21 21:57:10 +02:00
ocf_env.h Update OCF 2021-06-21 21:57:10 +02:00
service_ui_ioctl.c Remove remains of atomic writes support 2021-08-16 16:01:21 +02:00
service_ui_ioctl.h Update copyright statements (2021) 2021-01-21 13:15:38 +01:00
threads.c Update OCF 2021-06-21 21:57:10 +02:00
threads.h Update OCF 2021-06-21 21:57:10 +02:00