Re: [RFC PATCH] cfq: Give a chance for arming slice idle timer in case of group_idle

2017-08-11 Thread Ritesh Harjani
On 8/11/2017 8:30 PM, Jens Axboe wrote: On 08/10/2017 11:15 PM, Ritesh Harjani wrote: Hi Jens, Could you please take a look at below patch and the issue it is trying to solve. Please let us know your thoughts on the below problem and the patch. It looks reasonable to me. I'll queue it up fo

Re: [RFC PATCH] cfq: Give a chance for arming slice idle timer in case of group_idle

2017-08-11 Thread Jens Axboe
On 08/10/2017 11:15 PM, Ritesh Harjani wrote: > Hi Jens, > > Could you please take a look at below patch and the issue it is trying > to solve. Please let us know your thoughts on the below problem and the > patch. It looks reasonable to me. I'll queue it up for 4.14. -- Jens Axboe

Re: [RFC PATCH] cfq: Give a chance for arming slice idle timer in case of group_idle

2017-08-10 Thread Ritesh Harjani
Hi Jens, Could you please take a look at below patch and the issue it is trying to solve. Please let us know your thoughts on the below problem and the patch. Regards Ritesh On 8/9/2017 6:28 PM, Ritesh Harjani wrote: In below scenario blkio cgroup does not work as per their assigned weigh

[RFC PATCH] cfq: Give a chance for arming slice idle timer in case of group_idle

2017-08-09 Thread Ritesh Harjani
In below scenario blkio cgroup does not work as per their assigned weights :- 1. When the underlying device is nonrotational with a single HW queue with depth of >= CFQ_HW_QUEUE_MIN 2. When the use case is forming two blkio cgroups cg1(weight 1000) & cg2(wight 100) and two processes(file1 and file2