Re: [libvirt-users] preallocation=full Vs preallocation=metadata

2015-06-03 Thread Jatin Davey
Thanks Kashyap. I will test with option 2 & 3 and use whichever gives better results. Thanks Jatin On 6/3/2015 1:08 PM, Kashyap Chamarthy wrote: On Tue, Jun 02, 2015 at 09:14:03AM +0530, Jatin Davey wrote: Hi All I was reading through this: http://kashyapc.com/2011/12/02/little-more-disk-io

Re: [libvirt-users] preallocation=full Vs preallocation=metadata

2015-06-03 Thread Kashyap Chamarthy
On Tue, Jun 02, 2015 at 09:14:03AM +0530, Jatin Davey wrote: > Hi All > > I was reading through this: > > http://kashyapc.com/2011/12/02/little-more-disk-io-perf-improvement-with-fallocateing-a-qcow2-disk/ In my testing, the above method gives near-raw performance as it preallocated all the spac

[libvirt-users] preallocation=full Vs preallocation=metadata

2015-06-01 Thread Jatin Davey
Hi All I was reading through this: http://kashyapc.com/2011/12/02/little-more-disk-io-perf-improvement-with-fallocateing-a-qcow2-disk/ I was basically searching for pointers on improving disk I/O. I wanted to know the purpose of preallocation=full & preallocation=metadata , What is the differ