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From: | 陈博 |
Subject: | Re: [Qemu-devel] [PATCH v4 0/3] add avx2 instruction optimization |
Date: | Wed, 20 Jan 2016 18:22:21 +0800 |
Sorry for disturbing by reply, don't know why I'm not able to send a new mail. ———— 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 在 2016年1月20日,下午5:05,Liang Li <address@hidden> 写道: buffer_find_nonzero_offset() is a hot function during live migration. |
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