Re: [PATCH V6 00/18] blk-throttle: add .low limit

2017-09-22 Thread Paolo Valente
> Il giorno 05 set 2017, alle ore 23:02, Shaohua Li ha > scritto: > > On Thu, Aug 31, 2017 at 09:24:23AM +0200, Paolo VALENTE wrote: >> >>> Il giorno 15 gen 2017, alle ore 04:42, Shaohua Li ha scritto: >>> >>> Hi, >>> >>> cgroup still lacks a good iocontroller. CFQ works well for hard disk,

Re: [PATCH V6 00/18] blk-throttle: add .low limit

2017-09-06 Thread Shaohua Li
On Wed, Sep 06, 2017 at 09:12:20AM +0800, Joseph Qi wrote: > Hi Shaohua, > > On 17/9/6 05:02, Shaohua Li wrote: > > On Thu, Aug 31, 2017 at 09:24:23AM +0200, Paolo VALENTE wrote: > >> > >>> Il giorno 15 gen 2017, alle ore 04:42, Shaohua Li ha > >>> scritto: > >>> > >>> Hi, > >>> > >>> cgroup sti

Re: [PATCH V6 00/18] blk-throttle: add .low limit

2017-09-05 Thread Joseph Qi
Hi Shaohua, On 17/9/6 05:02, Shaohua Li wrote: > On Thu, Aug 31, 2017 at 09:24:23AM +0200, Paolo VALENTE wrote: >> >>> Il giorno 15 gen 2017, alle ore 04:42, Shaohua Li ha scritto: >>> >>> Hi, >>> >>> cgroup still lacks a good iocontroller. CFQ works well for hard disk, but >>> not >>> much for

Re: [PATCH V6 00/18] blk-throttle: add .low limit

2017-09-05 Thread Shaohua Li
On Thu, Aug 31, 2017 at 09:24:23AM +0200, Paolo VALENTE wrote: > > > Il giorno 15 gen 2017, alle ore 04:42, Shaohua Li ha scritto: > > > > Hi, > > > > cgroup still lacks a good iocontroller. CFQ works well for hard disk, but > > not > > much for SSD. This patch set try to add a conservative li

Re: [PATCH V6 00/18] blk-throttle: add .low limit

2017-08-31 Thread Paolo VALENTE
> Il giorno 15 gen 2017, alle ore 04:42, Shaohua Li ha scritto: > > Hi, > > cgroup still lacks a good iocontroller. CFQ works well for hard disk, but not > much for SSD. This patch set try to add a conservative limit for blk-throttle. > It isn't a proportional scheduling, but can help prioritiz

[PATCH V6 00/18] blk-throttle: add .low limit

2017-01-14 Thread Shaohua Li
Hi, cgroup still lacks a good iocontroller. CFQ works well for hard disk, but not much for SSD. This patch set try to add a conservative limit for blk-throttle. It isn't a proportional scheduling, but can help prioritize cgroups. There are several advantages we choose blk-throttle: - blk-throttle