Re: [Qemu-block] [Qemu-devel] [PATCH 1/2] hmp: add hmp command for incremental backup

2016-01-21 Thread
On 16/1/22 上午12:39, Eric Blake wrote: > On 01/21/2016 04:22 AM, Rudy Zhang wrote: >> Add hmp command for incremental backup in drive-backup. >> It need a bitmap to backup data from drive-image to incremental image, >> so before it need add bitmap for this device to track io. >> Usage: >>

[Qemu-block] [Question] the problem about driver-mirror

2015-04-23 Thread
I test the function of driver-mirror when run io stress test in vm. The fio's model is 128 iodepth, 4K block-size, 100% write, 100% randon. This is a continuous test, and then I start drive-mirror to copy data to other image file. I find this job can't finish. I analysis the problem and find the