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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-03 11:28:40 +0900 |
|---|---|---|
| committer | Ziyan <jaraidaniel@gmail.com> | 2015-05-02 14:36:27 +0200 |
| commit | dadb1edcbcfd1b308504675582d77a0bc98631df (patch) | |
| tree | fe8fe0408065f490e3a4d59672060c2a796b2309 /fs/stack.c | |
| parent | 8bd90b3a2146641572b9876ee6029dfa11efe123 (diff) | |
| download | kernel_samsung_tuna-dadb1edcbcfd1b308504675582d77a0bc98631df.zip kernel_samsung_tuna-dadb1edcbcfd1b308504675582d77a0bc98631df.tar.gz kernel_samsung_tuna-dadb1edcbcfd1b308504675582d77a0bc98631df.tar.bz2 | |
f2fs: fix to write node pages with WRITE_SYNC
This patch fixes performance regression of dbench reported by
Alex <hbx7d@yandex.com>.
This issue was revealed by Phoronix tests results:
http://www.phoronix.com/scan.php?page=article&item=linux_314_ssdfs&num=2
It turns out that we need to assign WRITE_SYNC to the node writes, if
fsync is triggered.
The performance numbers are like below, which is measured by Alex.
1. 355MB/s ext4
2. 225MB/s f2fs : WRITE for node writes
3. 525MB/s f2fs : WRITE_SYNC for node writes
Reported-And-Tested-by: Alex <hbx7d@yandex.com>.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/stack.c')
0 files changed, 0 insertions, 0 deletions