On 2013-08-20 13:20, Dennis Jacobfeuerborn wrote:
On 19.08.2013 20:28, Joakim Ziegler wrote:
So, from what I understand, if I can get this thing running on CentOS 6.4, I'll get kernel discard support, and discard support in LVM when running a RAID0. I'm using ext4.
Is that correct? Will this solve my problem? I want to confirm that discard support works on a RAID0 of SSDs using LVM and ext4 before I start working on getting this legacy application to run on a newer CentOS.
What kind of SSD are you using? We use Intel 520's here and don't really see these kind of slowdowns.
Seeing his problem I remember I saw a similar complain about SSD and write rate. Searching my recent archives it appears its neither on such an "old" kernel nor on RAID0.
For what it's worth: http://www.mail-archive.com/collectd@verplant.org/msg02683.html