On 14 November 2015 at 15:11, CHENG Yuk-Pong, Daniel <j16sdiz@xxxxxxxxx> wrote: > > Background info: > > I am running a heavy-write database server with 96GB ram. In the worse > case it cause multi minutes of high cpu loads. Systemd keeping kill > and restarting services, and old job don't die because they stuck in > uninterruptable wait... etc. > > Tried with nodatacow, but it seems only affect new file. It is not an > subvolume option either... How about nocow (chattr +C) on the database directories? You will have to copy the files to make nocow versions of them. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
