lkml.org 
[lkml]   [2017]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: XFS mounted with 'discard' option - deleting fio test files slow
On Fri, Sep 08, 2017 at 04:21:52PM -0700, Hao Chen wrote:
> This is expected. To get a better performance of XFS on NVMe drive, it
> is advised not use use the realtime discard option.
>
> https://www.intel.com/content/dam/support/us/en/documents/ssdc/data-center-ssds/Intel_Linux_NVMe_Guide_330602-002.pdf

Again, this will depend on your device. Intel in particular was the
example in my presentation for horrible performance of the NVMe
discard support - other vendors implement much better discard support,
so you'll see much better results.

\
 
 \ /
  Last update: 2017-09-11 08:42    [W:0.047 / U:0.412 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site