Re: [PATCH] migration/throttle: Add throttle-trig-thres migration parameter

2020-03-12 Thread zhukeqian
Hi Dr. David, On 2020/3/13 2:07, Dr. David Alan Gilbert wrote: > * Keqian Zhu (zhukeqi...@huawei.com) wrote: >> Currently, if the bytes_dirty_period is more than the 50% of >> bytes_xfer_period, we start or increase throttling. >> >> If we make this percentage higher, then we can tolerate higher >

Re: [PATCH] migration/throttle: Add throttle-trig-thres migration parameter

2020-03-12 Thread Dr. David Alan Gilbert
* Keqian Zhu (zhukeqi...@huawei.com) wrote: > Currently, if the bytes_dirty_period is more than the 50% of > bytes_xfer_period, we start or increase throttling. > > If we make this percentage higher, then we can tolerate higher > dirty rate during migration, which means less impact on guest. > The

Re: [PATCH] migration/throttle: Add throttle-trig-thres migration parameter

2020-03-12 Thread Dr. David Alan Gilbert
* Eric Blake (ebl...@redhat.com) wrote: > On 2/20/20 8:57 PM, Keqian Zhu wrote: > > Currently, if the bytes_dirty_period is more than the 50% of > > bytes_xfer_period, we start or increase throttling. > > > > If we make this percentage higher, then we can tolerate higher > > dirty rate during migr

Re: [PATCH] migration/throttle: Add throttle-trig-thres migration parameter

2020-02-23 Thread zhukeqian
Hi, Eric On 2020/2/21 22:14, Eric Blake wrote: > On 2/20/20 8:57 PM, Keqian Zhu wrote: >> Currently, if the bytes_dirty_period is more than the 50% of >> bytes_xfer_period, we start or increase throttling. >> >> If we make this percentage higher, then we can tolerate higher >> dirty rate during mi

Re: [PATCH] migration/throttle: Add throttle-trig-thres migration parameter

2020-02-21 Thread Eric Blake
On 2/20/20 8:57 PM, Keqian Zhu wrote: Currently, if the bytes_dirty_period is more than the 50% of bytes_xfer_period, we start or increase throttling. If we make this percentage higher, then we can tolerate higher dirty rate during migration, which means less impact on guest. The side effect of