* [Qemu-devel] cgroup blkio.weight is not working for qemu
@ 2016-01-20 10:03 Bob Chen
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From: Bob Chen @ 2016-01-20 10:03 UTC (permalink / raw)
To: qemu-devel
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Hi folks,
Could you enlighten me how to achieve proportional IO sharing by using
cgroup, instead of qemu's 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
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2016-01-20 10:03 [Qemu-devel] cgroup blkio.weight is not working for qemu Bob Chen
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