| Date | Mon, 27 Jul 2009 10:10:34 +0800 | From | Gui Jianfeng <> | Subject | Re: [RFC] IO scheduler based IO controller V6 |
| |
Hi,
Here are some fio test results for IO Controller V6 built and not built. Iozone test results are also attached.
Arch: X86 Mem: 1G Disk: 320G IO Scheduler: CFQ
============ By normal read and write syscall.
Block Size:32K File Size: 1G * 10
Mode Normal read | Random read | Normal write | Random write | Direct read | Direct write
2.6.31-rc1 47,932KiB/s 3,566KiB/s 45,693KiB/s 8,501KiB/s 50,088KiB/s 43,473KiB/s
2.6.31-rc1-Vivek-V6 47,231KiB/s 3,411KiB/s 42,451KiB/s 8,714KiB/s 51,284KiB/s 42,341KiB/s
Performance -1.5% -4.4% -7.0% +2.5% +2.4% -2.6%
============
By mmap.
Block Size:32K File Size: 500M
Mode Normal read | Random read | Normal write | Random write
2.6.31-rc1 49,951KiB/s 3,245KiB/s 21,950KiB/s 2,771KiB/s
2.6.31-rc1-Vivek-V6 49,951KiB/s 3,154KiB/s 22,593KiB/s 2,648KiB/s
Performance 0% -2.8% +2.9% -4.4%
============ By libaio calls
Block Size:32K File Size: 500M
Mode Normal read | Random read | Normal write | Random write
2.6.31-rc1 49,447KiB/s 3,296KiB/s 57,519KiB/s 21,093KiB/s
2.6.31-rc1-Vivek-V6 50,142KiB/s 3,238KiB/s 57,791KiB/s 21,283KiB/s
Performance +1.4% -1.8% 0% +0.1%
============
[unhandled content-type:application/x-compressed][unhandled content-type:application/x-compressed] |