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SubjectRe: [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%

============











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