I have just purchased an HP ProLiant HP ML110 G5 server and install ed
CentOS 5.2 x86_64 on it.
It has the following spec:
Intel(R) Xeon(R) CPU 3065 @ 2.33GHz
4GB ECC memory
4 x 250GB SATA hard disks running at 1.5GB/s
Onboard RAID controller is enabled but at the moment I have used mdadm
to configure the array.
RAID bus controller: Intel Corporation 82801 SATA RAID Controller
For a simple striped array I ran:
# mdadm --create /dev/md0 --level=0 --raid-devices=2 /dev/sdb1 /dev/sdc1
# mke2fs -j /dev/md0
# mount -t ext3 /dev/md0 /mnt
Attached are the results of 2 bonnie++ tests I made to test the performance:
# bonnie++ -s 256m -d /mnt -u 0 -r 0
and
# bonnie++ -s 1g -d /mnt -u 0 -r 0
I also tried 3 of the drives in a RAID 5 setup with gave similar results.
Is it me or are the results poor?
Is this the best I can expect from the hardware or is something wrong?
I would appreciate any advice or possible tweaks I can make to the
system to make the performance better.
The block I/O is the thing that concerns me as mostly I am serving a
650MB file via samba to 5 clients and I think this is where I need the
speed.
Plus I am hoping to run some virtualised guests on it eventually, but
nothing too heavy.
Version 1.94 ------Sequential Output------ --Sequential Input- --Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
localhost 256M 512 98 74517 19 107776 19 1451 99 +++++ +++ 3752 16
Latency 80784us 7458us 50us 6489us 201us 5670us
Version 1.94 ------Sequential Create------ --------Random Create--------
localhost -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 24866 67 +++++ +++ +++++ +++ 26588 73 +++++ +++ +++++ +++
Latency 9668us 139us 328us 13409us 14us 339us
1.93c,1.94,localhost,1,1231622612,256M,,512,98,74517,19,107776,19,1451,99,++
+++,+++,3752,16,16,,,,,24866,67,+++++,+++,+++++,+++,26588,73,+++++,+++,+++++,+++
,80784us,7458us,50us,6489us,201us,5670us,9668us,139us,328us,13409us,14us,339us
---
Version 1.94 ------Sequential Output------ --Sequential Input- --Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
localhost 1G 506 98 55430 13 53909 8 1431 98 1414238 97 1484 9
Latency 75827us 562ms 36504us 11904us 329us 5926us
Version 1.94 ------Sequential Create------ --------Random Create--------
localhost -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 21333 55 +++++ +++ +++++ +++ 25931 70 +++++ +++ +++++ +++
Latency 23775us 167us 173us 11528us 26us 97us
1.93c,1.94,localhost,1,1231623061,1G,,506,98,55430,13,53909,8,1431,98,1414238,97,1484,9,16,,,,,21333,55,+++++,+++,+++++,+++,25931,70,+++++,+++,+++++,+++,75827us,562ms,36504us,11904us,329us,5926us,23775us,167us,173us,11528us,26us,97us_______________________________________________
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