search for: max_down_time

...socket in a shorter time, so some of the write operation may need to wait. Without this optimization, zero page checking takes more time, the network is not so busy. If the guest is not an idle one, I think the gap of the downtime will not so obvious. Anyway, the downtime is still less than the max_down_time set by the user. Thanks! Liang

...socket in a shorter time, so some of the write operation may need to wait. Without this optimization, zero page checking takes more time, the network is not so busy. If the guest is not an idle one, I think the gap of the downtime will not so obvious. Anyway, the downtime is still less than the max_down_time set by the user. Thanks! Liang

This patch set contains two parts of changes to the virtio-balloon. One is the change for speeding up the inflating & deflating process, the main idea of this optimization is to use bitmap to send the page information to host instead of the PFNs, to reduce the overhead of virtio data transmission, address translation and madvise(). This can help to improve the performance by about 85%.

This patch set contains two parts of changes to the virtio-balloon. One is the change for speeding up the inflating & deflating process, the main idea of this optimization is to use bitmap to send the page information to host instead of the PFNs, to reduce the overhead of virtio data transmission, address translation and madvise(). This can help to improve the performance by about 85%.