Hi,
There are several things about this that are highly suspect.
First, wipe out the hardware RAID. The processor doing RAID computation is,
probably, MUCH slower than a core on the CPU. Even if it's RAID-1 (Simple
Mirror) this RAID card is performing tasks that is does not need to do
inc
On Fri, Mar 22, 2013 at 9:15 AM, Davide D'Amico
wrote:
> Well, the I/O isn't the bottleneck (if you follow the link to freebsd-fs,
> you'll see iostats values) but it seems something related to cpu/scheduler or
> something else.
> Now I am trying vmware 5 on the same server and a vm with centos6
Well, the I/O isn't the bottleneck (if you follow the link to freebsd-fs,
you'll see iostats values) but it seems something related to cpu/scheduler or
something else.
Now I am trying vmware 5 on the same server and a vm with centos6: the vm
outperforms freebsd with every concurrency from 1 to 4
Hi Davide!
Are you sure that disk is the bottleneck in your test?
Does systat -vm 1 show 100% busy for disk ?
Evgeny.
2013/3/22 Davide D'Amico
> Hi, I'm doing performance tests on a DELL R720, follows dmesg:
>
> Copyright (c) 1992-2012 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 19
On Mar 22, 2013, at 6:06 AM, Davide D'Amico
wrote:
> Il 22/03/13 11:00, Traffanstead, Mike ha scritto:
>> May I ask why you're running ZFS on top of a RAID array? That's not
>> recommended. One of the advantages of ZFS is that it balance disk
>> activity across devices but when put it on top
Il 22/03/13 11:00, Traffanstead, Mike ha scritto:
May I ask why you're running ZFS on top of a RAID array? That's not
recommended. One of the advantages of ZFS is that it balance disk
activity across devices but when put it on top drives that at are
already raided it loses that insight and may
May I ask why you're running ZFS on top of a RAID array? That's not
recommended. One of the advantages of ZFS is that it balance disk
activity across devices but when put it on top drives that at are
already raided it loses that insight and may end up scheduling
reads/writes that all land on the
Hi, I'm doing performance tests on a DELL R720, follows dmesg:
Copyright (c) 1992-2012 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The F
