Envoyé : vendredi 24 avril 2015 10:26
À : ceph-users@lists.ceph.com
Objet : [PROVENANCE INTERNET] Re: [ceph-users] read performance VS network usage
OK, I must learn how to read dstat...
I took the recv column for the send column...
total-cpu-usage -dsk/total- -net/total- ---paging
; ceph-users@lists.ceph.com
Objet : [PROVENANCE INTERNET] Re: [ceph-users] read performance VS network usage
Hi Nick,
Thanks for your explanation.
I have some doubts this is what's happening, but I'm going to first check what
happens with disks IO with a clean pool and clean bench data (
ugh creating a RBD with smaller object sizes can help reduce this.
Nick
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of SCHAER
Frederic
Sent: 23 April 2015 15:40
To: ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>
Subject: [ceph-users] read performanc
15:40
To: ceph-users@lists.ceph.com
Subject: [ceph-users] read performance VS network usage
Hi again,
On my testbed, I have 5 ceph nodes, each containing 23 OSDs (2TB btrfs
drives). For these tests, I've setup a RAID0 on the 23 disks.
For now, I'm not using SSDs as I disco
Hi again,
On my testbed, I have 5 ceph nodes, each containing 23 OSDs (2TB btrfs drives).
For these tests, I've setup a RAID0 on the 23 disks.
For now, I'm not using SSDs as I discovered my vendor apparently decreased
their perfs on purpose...
So : 5 server nodes of which 3 are MONS too.
I also
