[DRBD-user] write performance solved.... kinda, now kvm machines need help

listslut at outofoptions.net listslut at outofoptions.net
Thu Jul 28 21:19:54 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Linux version 2.6.18-274.el5 (mockbuild at x86-002.build.bos.redhat.com)  
(gcc version 4.1.2 20080704 (Red Hat 4.1.2-51)) #1 SMP Fri Jul 8  
17:36:59 EDT 2011

[root at thing1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.6 (Tikanga)

I upgraded to drbd 8.4.  I went over my configs and added just about  
every tweak I could.  I got around 90M/s on sync ups and around 60M/s  
otherwise using LVM/GFS2.

I thought life was good. I now get 0.5M with KVM's.   My Redhat  
kickstart disk wouldn't even complete an install without some error.   
I'm installing Fedora 14 now from disk and it is going but very  
slowly.  It is using the Virtio disk driver.  Anyone have any advice  
on where I should look for more info on this?

Ken Lowther

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