dentarg - Thu, 07/19/2012 - 15:13
Finally I've just found small amount of time to write 2 PHP scripts and create database with all bonnie++ results I've got. All tests were run by me. Some tests do not have character speeds (those got -1 value there). You can sort results by: block write speed, character write speed, rewrite, block read speed, character read speed and seeks. You can also narrow results down by filtering LVM, encryption and filesystem type. Every new bonnie++ runs gonna go there.
Hope some of you gonna find this useful. Link is http://bonnie.it64.com/
dentarg - Tue, 07/05/2011 - 13:22
Lately I've got 6 500GB SATA 7200 rpm disks in my hands. So I decided to do some performance tests of linux software raid.
There are a lot of legends about raid levels, which are better for database or file storing. Also there are informations how much which raid layout loads CPU.
So I decided to verify those.
dentarg - Sun, 07/03/2011 - 10:30
I guess almost every linux admin heard that when you creating ext filesystem over software raid you should consider using extended mkfs options. Two important options for that operation are: stride and stipe-width, which you should calculate for your setup of raid (number of disks, level, chunk size). You can calculate all those parameters each time you create ext2/ext3/ext4, but there are lot of ready calculators to use. I'd prefer using this one. Cause it's simple and fast.