[ale] Disk performance
Alex Carver
agcarver+ale at acarver.net
Sun Aug 25 01:08:21 EDT 2013
On 8/24/2013 21:59, Brian Mathis wrote:
>
> This wouldn't explain a sudden drop in performance, but make sure you have
> your partitions mounted using the "relatime" mount option. One unfortunate
> problem with Linux is that it keeps track of every time a file is accessed,
> which means that every time you read a file, it causes a write back to the
> disk.
>
> Older kernels used the "noatime" option, but "relatime" is the modern
> incarnation of that. The only caveat is if you are using backup software
> that relies on the access time, which I think is somewhat rare. Using
> "relatime" should solve those problems though.
I had already checked into that and set it back to noatime just in case
(thinking an update changed the defaults). I don't really need access
time anyway, just ctime and mtime. Backups consist of find and scp. :)
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