Re: [PATCH v6 3/4] block: add block timer and block throttling algorithm

2011-09-01 Thread Stefan Hajnoczi
On Thu, Sep 1, 2011 at 12:44 PM, Zhi Yong Wu wrote: > Note: >     1.) When bps/iops limits are specified to a small value such as 511 > bytes/s, this VM will hang up. We are considering how to handle this senario. >     2.) When "dd" command is issued in guest, if its option bs is set to a > lar

[PATCH v6 3/4] block: add block timer and block throttling algorithm

2011-09-01 Thread Zhi Yong Wu
Note: 1.) When bps/iops limits are specified to a small value such as 511 bytes/s, this VM will hang up. We are considering how to handle this senario. 2.) When "dd" command is issued in guest, if its option bs is set to a large value such as "bs=1024K", the result speed will slightly b