Probably on friday morning (Italy time) I'll have some time to access
and compare 2 quite identical Dell M610 blades.
One with an up2date 5.5 and another with rh el 6 beta2 + kernel
update. Both x86_64.
These ones are connected to internal storage and also to 10Gbit/s
iSCSI SAN (the target of my
Def. Quota Simon Matter simon.mat...@invoca.ch:
But don't barriers affect mostly writes? If yes, is it because of the logs
and atime? 80% still looks like too much, maybe it's so bad because of the
virtualized environment?
I have not access to an hardware setup to check it, but I'd suggest to
Also I don't think touching the default filesystem and it's config is a
good thing here. One can always tune things as needed but the defaults
should be sane.
Simon
I had wondered about this too, the link provided showed a tuning guide
from 1999, it makes me wonder if mounting noatime or
On Mon, Nov 8, 2010 at 7:08 PM, Morten P.D. Stevens
mstev...@imt-systems.com wrote:
Both systems running on the same hardware. (virtualized with VMWare
Workstation 7.1
VMware tools build number for each version of Red Hat?
___
rhelv6-beta-list
On Mon, Nov 08, 2010 at 09:58:12PM -0500, Ashley Penney wrote:
One thing to consider is the 'nobarrier' option for ext4 - apparently
makes
a big performance difference.
This is probably it. This was discussed ad infinitum when it was
changed upstream, and caused a huge performance
2010/11/9 Edward Rudd er...@netfor.com:
Are you using Ext3 or Ext4 on the RHEL 6 system? Might try to use ext3 and
see if it makes any difference,
I've tried it with ext3 and ext4 and it makes no difference.
Also are these in VMs or bare hardware? and are the two servers the same?
Both
2010/11/9 Marco Shaw marco.s...@gmail.com:
Well, right off, when you listed your hardware, I never assumed it was
virtualized. At the very least, I would want to see this test in a
hypervisor virtualized environment, and even better directly on
hardware.
Adding an virtual application layer
I'd love to try it and break it down using SystemTap... I just don't
have the free time.
RHEL 5.5 + updates versus RHEL 6 Beta 2 July refresh?
On Mon, Nov 8, 2010 at 10:12 PM, Morten P.D. Stevens
mstev...@imt-systems.com wrote:
2010/11/9 Marco Shaw marco.s...@gmail.com:
Well, right off, when
