lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 23 Jan 2020 22:28:47 -0800 From: Colin Zou <colin.zou@...il.com> To: linux-ext4@...r.kernel.org Subject: Help: ext4 jbd2 IO requests slow down fsync Hi, I used to run my application on ext3 on SSD and recently switched to ext4. However, my application sees performance regression. The root cause is, iosnoop shows that the workload includes a lot of fsync and every fsync does data IO and also jbd2 IO. While on ext3, it seldom does journal IO. Is there a way to tune ext4 to increase fsync performance? Say, by reducing jbd2 IO requests? Thanks, Colin
Powered by blists - more mailing lists