[Xen-users] Getting better Disk IO

["James Rivera" <jrivera@xxxxxxxxxxx>]

I am trying to improve my disk io.  I am running xen 3 on fedora 6.  Using HD tachh to get my average read time.  So far average read is 6.6 mb /s Is there any settings I can change to get better performance? Do I need to tweak Qeum?  How can I check if I have the right drivers for the raid? I am using Adaptec.  I hope someone can help me.

 

Thanks James

 

In Domain-0 I run hdpram -tT /dev/sda1

dev/sda1:
 Timing cached reads:   11716 MB in  1.99 seconds = 5873.27 MB/sec
 Timing buffered disk reads:  100 MB in  1.84 seconds =  54.30 MB/sec

 

 

Here are my specs

 

root@ax-xen-01 ~]# cat /roc/cpuinfo
cat: /roc/cpuinfo: No such file or directory
[root@ax-xen-01 ~]# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Xeon(R) CPU            3060  @ 2.40GHz
stepping        : 6
cpu MHz         : 2394.068
cache size      : 4096 KB
physical id     : 0
siblings        : 1
core id         : 0
cpu cores       : 1
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
bogomips        : 5986.86
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

 

root@ax-xen-01 ~]# lspci
00:00.0 Host bridge: Intel Corporation E7230/3000/3010 Memory Controller Hub (rev c0)
00:01.0 PCI bridge: Intel Corporation E7230/3000/3010 PCI Express Root Port (rev c0)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.4 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 5 (rev 01)
00:1c.5 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 6 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
00:1f.2 RAID bus controller: Intel Corporation 82801GR/GH (ICH7 Family) Serial ATA Storage Controller RAID (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
09:00.0 PCI bridge: Intel Corporation 6702PXH PCI Express-to-PCI Bridge A (rev 09)
09:00.1 PIC: Intel Corporation 6700/6702PXH I/OxAPIC Interrupt Controller A (rev 09)
0e:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller
0f:00.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02)
[root@ax-xen-01 ~]#

 

James Rivera | Axacore | jrivera@xxxxxxxxxxx | +1 (858) 427-4318

 

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