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云南建设投资集团网站首页,石家庄房价,苹果手机推广网站制作,紫金网站建设价格6.附上老外的性能测试由测试结果可以看到使用api连接glusterfs性能比fuse提高近一倍,并且接近本地磁盘的速度.The following numbers from FIO benchmark are to show the performance advantage of using QEMU’s GlusterFS block driver instead of the usual FUSE mount whi…

6.附上老外的性能测试

由测试结果可以看到使用api连接glusterfs性能比fuse提高近一倍,并且接近本地磁盘的速度.

The following numbers from FIO benchmark are to show the performance advantage of using QEMU’s GlusterFS block driver instead of the usual FUSE mount while accessing the VM image.

Test setup

Host

Dual core x86_64 system running Fedora 17 kernel (3.5.6-1.fc17.x86_64)

Guest

Fedora 17 image, 4 way SMP, 2GB RAM, using virtio and cache=none QEMU options

QEMU options

FUSE mount

qemu-system-x86_64 –enable-kvm –nographic -smp 4 -m 2048 -drive file=/mnt/F17,if=virtio,cache=none => /mnt is GlusterFS FUSE mount point

GlusterFS block driver in QEMU (FUSE bypass)

qemu-system-x86_64 –enable-kvm –nographic -smp 4 -m 2048 -drive file=gluster://bharata/test/F17,if=virtio,cache=none

Base (VM image accessed directly from brick)

qemu-system-x86_64 –enable-kvm –nographic -smp 4 -m 2048 -drive file=/test/F17,if=virtio,cache=none => /test is brick directory

FIO load files

Sequential read direct IO

; Read 4 files with aio at different depths

[global]

ioengine=libaiodirect=1rw=read

bs=128k

size=512m

directory=/data1

[file1]

iodepth=4

[file2]

iodepth=32

[file3]

iodepth=8

[file4]

iodepth=16

Sequential write direct IO

; Write 4 files with aio at different depths

[global]

ioengine=libaiodirect=1rw=write

bs=128k

size=512m

directory=/data1

[file1]

iodepth=4

[file2]

iodepth=32

[file3]

iodepth=8

[file4]

iodepth=16

FIO READ numbers

aggrb (KB/s)

minb (KB/s)

maxb (KB/s)

FUSE mount

15219

3804

5792

QEMU’s GlusterFS block driver (FUSE bypass)

39357

9839

12946

Base

43802

10950

12918

FIO WRITE numbers

aggrb (KB/s)

minb (KB/s)

maxb (KB/s)

FUSE mount

24579

6144

8423

QEMU’s GlusterFS block driver (FUSE bypass)

42707

10676

17262

Base

42393

10598

15646

Updated numbers

Here are the recent FIO numbers averaged from 5 runs using latest QEMU (git commit: 03a36f17d77) and GlusterFS (git commit: cee1b62d01). The test environment remains same as above with the following two changes:

The GlusterFS volume has write-behind translator turned off

The host kernel is upgraded to 3.6.7-4.fc17.x86_64

FIO READ numbers

aggrb (KB/s)

% Reduction from Base

Base

44464

FUSE mount

21637

-51

QEMU’s GlusterFS block driver (FUSE bypass)

38847