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Re: expected disk performance?: msg#00131
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Subject: |
Re: expected disk performance? |
> On Tue, 2006-05-23 at 13:31 +0100, Stephen C. Tweedie wrote:
>
>> File-backed guest:
>> dom0 hdparm -t: 85.7138 MB/sec
>> domU hdparm -t: 75.2901 MB/sec
>
> That was rawhide; I get similar performance from current FC5:
>
> domU hdparm -t: 77.99 MB/sec
>
> and identical results testing the raw disk rate with lmdd.
Bleah.. didn't CC the list:
Mine:
DBD - 5G LVM partition on a 7200RPM IDE 200G:
[root@xm-fc5-001 ~]# dd if=/dev/zero of=/home/foo bs=4k count=25000
25000+0 records in
25000+0 records out
102400000 bytes (102 MB) copied, 2.06112 seconds, 49.7 MB/s
DBD - 120G dedicated disk 7200RPM IDE (phy device set as xvdb)
[root@xm-fc5-001 ~]# dd if=/dev/zero of=/export/foo bs=4k count=25000
25000+0 records in
25000+0 records out
102400000 bytes (102 MB) copied, 0.719008 seconds, 142 MB/s
hdparm returns similar results. The first physical device is shared with four
other
DomU's.
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