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[Qemu-devel] cgroup blkio weight has no effect on qemu
From: |
陈博 |
Subject: |
[Qemu-devel] cgroup blkio weight has no effect on qemu |
Date: |
Wed, 20 Jan 2016 18:41:16 +0800 |
Hi,
Could you enlighten me how to achieve proportional IO sharing by using cgroup,
instead of qemu's own io-throttling?
My qemu config is like: -drive
file=$DISKFILe,if=none,format=qcow2,cache=none,aio=native -device
virtio-blk-pci...
Test command inside vm is like: dd if=/dev/vdc of=/dev/null iflag=direct
Cgroup blkio weight of the qemu process is properly configured as well.
But no matter how change the proportion, such as vm1=400 and vm2=100, I can
only get the equal IO speed.
Wondering cgroup blkio.weight or blkio.weight_device has no effect on qemu?
PS. cache=writethrough aio=threads is also tested, the same results.
- Bob
- [Qemu-devel] cgroup blkio weight has no effect on qemu, 陈博, 2016/01/19
- [Qemu-devel] cgroup blkio weight has no effect on qemu, Bob Chen, 2016/01/20
- [Qemu-devel] cgroup blkio weight has no effect on qemu,
陈博 <=
- [Qemu-devel] cgroup blkio weight has no effect on qemu, 陈博, 2016/01/20
- [Qemu-devel] cgroup blkio weight has no effect on qemu, Bob Chen, 2016/01/20
- [Qemu-devel] cgroup blkio weight has no effect on qemu, Bob Chen, 2016/01/20
- [Qemu-devel] cgroup blkio weight has no effect on qemu, Bob Chen, 2016/01/20
- [Qemu-devel] cgroup blkio weight has no effect on qemu, Bob Chen, 2016/01/20