Re: [Qemu-devel] [WIP:COLO: 1] Flush colo ram in parallel

2016-02-29 Thread Li Zhijian
Great work!! I like this patch very much. On 02/29/2016 08:41 PM, Hailiang Zhang wrote: On 2016/2/29 18:19, Dr. David Alan Gilbert (git) wrote: From: "Dr. David Alan Gilbert" Flush the colo ram cache in parallel; use the same number of threads as CPU cores. On a VM with 4 cores, and 4GB RAM

Re: [Qemu-devel] [WIP:COLO: 1] Flush colo ram in parallel

2016-02-29 Thread Hailiang Zhang
On 2016/2/29 18:19, Dr. David Alan Gilbert (git) wrote: From: "Dr. David Alan Gilbert" Flush the colo ram cache in parallel; use the same number of threads as CPU cores. On a VM with 4 cores, and 4GB RAM, I've seen a reduction from ~20ms to ~16ms using this, which is helpful but not as much as

[Qemu-devel] [WIP:COLO: 1] Flush colo ram in parallel

2016-02-29 Thread Dr. David Alan Gilbert (git)
From: "Dr. David Alan Gilbert" Flush the colo ram cache in parallel; use the same number of threads as CPU cores. On a VM with 4 cores, and 4GB RAM, I've seen a reduction from ~20ms to ~16ms using this, which is helpful but not as much as I hoped; I guess one problem might be that all the chan