From: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> To: Andrea Righi <righi.andrea-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Cc: dhaval-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jens.axboe-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, paolo.valente-rcYM44yAMweonA0d6jMUrA@public.gmane.org, fernando-gVGce1chcLdL9jVzuh4AOg@public.gmane.org, jmoyer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, fchecconi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> Subject: Re: IO scheduler based IO Controller V2 Date: Thu, 7 May 2009 11:36:42 -0400 [thread overview] Message-ID: <20090507153642.GC9463@redhat.com> (raw) In-Reply-To: <20090507144501.GB9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> On Thu, May 07, 2009 at 10:45:01AM -0400, Vivek Goyal wrote: > On Thu, May 07, 2009 at 10:11:26AM -0400, Vivek Goyal wrote: > > [..] > > [root@chilli io-throttle-tests]# ./andrea-test-script.sh > > RT: 223+1 records in > > RT: 223+1 records out > > RT: 234179072 bytes (234 MB) copied, 0.988448 s, 237 MB/s > > BE: 223+1 records in > > BE: 223+1 records out > > BE: 234179072 bytes (234 MB) copied, 1.93885 s, 121 MB/s > > > > So I am still seeing the issue with differnt kind of disks also. At this point > > of time I am really not sure why I am seeing such results. > > Hold on. I think I found the culprit here. I was thinking that what is > the difference between two setups and realized that with vanilla kernels > I had done "make defconfig" and with io-throttle kernels I had used an > old config of my and did "make oldconfig". So basically config files > were differnt. > > I now used the same config file and issues seems to have gone away. I > will look into why an old config file can force such kind of issues. > Hmm.., my old config had "AS" as default scheduler that's why I was seeing the strange issue of RT task finishing after BE. My apologies for that. I somehow assumed that CFQ is default scheduler in my config. So I have re-run the test to see if we are still seeing the issue of loosing priority and class with-in cgroup. And we still do.. 2.6.30-rc4 with io-throttle patches =================================== Test1 ===== - Two readers, one BE prio 0 and other BE prio 7 in a cgroup limited with 8MB/s BW. 234179072 bytes (234 MB) copied, 55.8448 s, 4.2 MB/s prio 0 task finished 234179072 bytes (234 MB) copied, 55.8878 s, 4.2 MB/s Test2 ===== - Two readers, one RT prio 0 and other BE prio 7 in a cgroup limited with 8MB/s BW. 234179072 bytes (234 MB) copied, 55.8876 s, 4.2 MB/s 234179072 bytes (234 MB) copied, 55.8984 s, 4.2 MB/s RT task finished Test3 ===== - Reader Starvation - I created a cgroup with BW limit of 64MB/s. First I just run the reader alone and then I run reader along with 4 writers 4 times. Reader alone 234179072 bytes (234 MB) copied, 3.71796 s, 63.0 MB/s Reader with 4 writers --------------------- First run 234179072 bytes (234 MB) copied, 30.394 s, 7.7 MB/s Second run 234179072 bytes (234 MB) copied, 26.9607 s, 8.7 MB/s Third run 234179072 bytes (234 MB) copied, 37.3515 s, 6.3 MB/s Fourth run 234179072 bytes (234 MB) copied, 36.817 s, 6.4 MB/s Note that out of 64MB/s limit of this cgroup, reader does not get even 1/5 of the BW. In normal systems, readers are advantaged and reader gets its job done much faster even in presence of multiple writers. Vanilla 2.6.30-rc4 ================== Test3 ===== Reader alone 234179072 bytes (234 MB) copied, 2.52195 s, 92.9 MB/s Reader with 4 writers --------------------- First run 234179072 bytes (234 MB) copied, 4.39929 s, 53.2 MB/s Second run 234179072 bytes (234 MB) copied, 4.55929 s, 51.4 MB/s Third run 234179072 bytes (234 MB) copied, 4.79855 s, 48.8 MB/s Fourth run 234179072 bytes (234 MB) copied, 4.5069 s, 52.0 MB/s Notice, that without any writers we seem to be having BW of 92MB/s and more than 50% of that BW is still assigned to reader in presence of writers. Compare this with io-throttle cgroup of 64MB/s where reader struggles to get 10-15% of BW. So any 2nd level control will break the notion and assumptions of underlying IO scheduler. We should probably do control at IO scheduler level to make sure we don't run into such issues while getting hierarchical fair share for groups. Thanks Vivek > So now we are left with the issue of loosing the notion of priority and > class with-in cgroup. In fact on bigger systems we will probably run into > issues of kiothrottled scalability as single thread is trying to cater to > all the disks. > > If we do max bw control at IO scheduler level, then I think we should be able > to control max bw while maintaining the notion of priority and class with-in > cgroup. Also there are multiple pdflush threads and jens seems to be pushing > flusher threads per bdi which will help us achieve greater scalability and > don't have to replicate that infrastructure for kiothrottled also. > > Thanks > Vivek
WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com> To: Andrea Righi <righi.andrea@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org>, nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com, mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it, jens.axboe@oracle.com, ryov@valinux.co.jp, fernando@oss.ntt.co.jp, s-uchida@ap.jp.nec.com, taka@valinux.co.jp, guijianfeng@cn.fujitsu.com, jmoyer@redhat.com, dhaval@linux.vnet.ibm.com, balbir@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, agk@redhat.com, dm-devel@redhat.com, snitzer@redhat.com, m-ikeda@ds.jp.nec.com, peterz@infradead.org Subject: Re: IO scheduler based IO Controller V2 Date: Thu, 7 May 2009 11:36:42 -0400 [thread overview] Message-ID: <20090507153642.GC9463@redhat.com> (raw) In-Reply-To: <20090507144501.GB9463@redhat.com> On Thu, May 07, 2009 at 10:45:01AM -0400, Vivek Goyal wrote: > On Thu, May 07, 2009 at 10:11:26AM -0400, Vivek Goyal wrote: > > [..] > > [root@chilli io-throttle-tests]# ./andrea-test-script.sh > > RT: 223+1 records in > > RT: 223+1 records out > > RT: 234179072 bytes (234 MB) copied, 0.988448 s, 237 MB/s > > BE: 223+1 records in > > BE: 223+1 records out > > BE: 234179072 bytes (234 MB) copied, 1.93885 s, 121 MB/s > > > > So I am still seeing the issue with differnt kind of disks also. At this point > > of time I am really not sure why I am seeing such results. > > Hold on. I think I found the culprit here. I was thinking that what is > the difference between two setups and realized that with vanilla kernels > I had done "make defconfig" and with io-throttle kernels I had used an > old config of my and did "make oldconfig". So basically config files > were differnt. > > I now used the same config file and issues seems to have gone away. I > will look into why an old config file can force such kind of issues. > Hmm.., my old config had "AS" as default scheduler that's why I was seeing the strange issue of RT task finishing after BE. My apologies for that. I somehow assumed that CFQ is default scheduler in my config. So I have re-run the test to see if we are still seeing the issue of loosing priority and class with-in cgroup. And we still do.. 2.6.30-rc4 with io-throttle patches =================================== Test1 ===== - Two readers, one BE prio 0 and other BE prio 7 in a cgroup limited with 8MB/s BW. 234179072 bytes (234 MB) copied, 55.8448 s, 4.2 MB/s prio 0 task finished 234179072 bytes (234 MB) copied, 55.8878 s, 4.2 MB/s Test2 ===== - Two readers, one RT prio 0 and other BE prio 7 in a cgroup limited with 8MB/s BW. 234179072 bytes (234 MB) copied, 55.8876 s, 4.2 MB/s 234179072 bytes (234 MB) copied, 55.8984 s, 4.2 MB/s RT task finished Test3 ===== - Reader Starvation - I created a cgroup with BW limit of 64MB/s. First I just run the reader alone and then I run reader along with 4 writers 4 times. Reader alone 234179072 bytes (234 MB) copied, 3.71796 s, 63.0 MB/s Reader with 4 writers --------------------- First run 234179072 bytes (234 MB) copied, 30.394 s, 7.7 MB/s Second run 234179072 bytes (234 MB) copied, 26.9607 s, 8.7 MB/s Third run 234179072 bytes (234 MB) copied, 37.3515 s, 6.3 MB/s Fourth run 234179072 bytes (234 MB) copied, 36.817 s, 6.4 MB/s Note that out of 64MB/s limit of this cgroup, reader does not get even 1/5 of the BW. In normal systems, readers are advantaged and reader gets its job done much faster even in presence of multiple writers. Vanilla 2.6.30-rc4 ================== Test3 ===== Reader alone 234179072 bytes (234 MB) copied, 2.52195 s, 92.9 MB/s Reader with 4 writers --------------------- First run 234179072 bytes (234 MB) copied, 4.39929 s, 53.2 MB/s Second run 234179072 bytes (234 MB) copied, 4.55929 s, 51.4 MB/s Third run 234179072 bytes (234 MB) copied, 4.79855 s, 48.8 MB/s Fourth run 234179072 bytes (234 MB) copied, 4.5069 s, 52.0 MB/s Notice, that without any writers we seem to be having BW of 92MB/s and more than 50% of that BW is still assigned to reader in presence of writers. Compare this with io-throttle cgroup of 64MB/s where reader struggles to get 10-15% of BW. So any 2nd level control will break the notion and assumptions of underlying IO scheduler. We should probably do control at IO scheduler level to make sure we don't run into such issues while getting hierarchical fair share for groups. Thanks Vivek > So now we are left with the issue of loosing the notion of priority and > class with-in cgroup. In fact on bigger systems we will probably run into > issues of kiothrottled scalability as single thread is trying to cater to > all the disks. > > If we do max bw control at IO scheduler level, then I think we should be able > to control max bw while maintaining the notion of priority and class with-in > cgroup. Also there are multiple pdflush threads and jens seems to be pushing > flusher threads per bdi which will help us achieve greater scalability and > don't have to replicate that infrastructure for kiothrottled also. > > Thanks > Vivek
next prev parent reply other threads:[~2009-05-07 15:36 UTC|newest] Thread overview: 297+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-05-05 19:58 IO scheduler based IO Controller V2 Vivek Goyal 2009-05-05 19:58 ` [PATCH 01/18] io-controller: Documentation Vivek Goyal 2009-05-06 3:16 ` Gui Jianfeng [not found] ` <4A0100F4.4040400-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-06 13:31 ` Vivek Goyal 2009-05-06 13:31 ` Vivek Goyal [not found] ` <1241553525-28095-2-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 3:16 ` Gui Jianfeng 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 02/18] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` [PATCH 03/18] io-controller: Charge for time slice based on average disk rate Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 04/18] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal [not found] ` <1241553525-28095-5-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-22 8:54 ` Gui Jianfeng 2009-05-22 8:54 ` Gui Jianfeng [not found] ` <4A166829.6070608-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-22 12:33 ` Vivek Goyal 2009-05-22 12:33 ` Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 05/18] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-07 7:42 ` Gui Jianfeng 2009-05-07 8:05 ` Li Zefan [not found] ` <4A0290ED.7080506-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-07 8:05 ` Li Zefan 2009-05-08 12:45 ` Vivek Goyal 2009-05-08 12:45 ` Vivek Goyal [not found] ` <1241553525-28095-6-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 7:42 ` Gui Jianfeng 2009-05-08 21:09 ` Andrea Righi 2009-05-08 21:09 ` Andrea Righi 2009-05-08 21:17 ` Vivek Goyal 2009-05-08 21:17 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 06/18] io-controller: cfq changes to use " Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 07/18] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-13 2:39 ` Gui Jianfeng [not found] ` <4A0A32CB.4020609-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-13 14:51 ` Vivek Goyal 2009-05-13 14:51 ` Vivek Goyal 2009-05-14 7:53 ` Gui Jianfeng [not found] ` <20090513145127.GB7696-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 7:53 ` Gui Jianfeng [not found] ` <1241553525-28095-8-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-13 2:39 ` Gui Jianfeng 2009-05-05 19:58 ` [PATCH 08/18] io-controller: idle for sometime on sync queue before expiring it Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-13 15:00 ` Vivek Goyal 2009-05-13 15:00 ` Vivek Goyal 2009-06-09 7:56 ` Gui Jianfeng 2009-06-09 17:51 ` Vivek Goyal 2009-06-09 17:51 ` Vivek Goyal [not found] ` <20090609175131.GB13476-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-06-10 1:30 ` Gui Jianfeng 2009-06-10 1:30 ` Gui Jianfeng 2009-06-10 1:30 ` Gui Jianfeng 2009-06-10 13:26 ` Vivek Goyal 2009-06-10 13:26 ` Vivek Goyal 2009-06-11 1:22 ` Gui Jianfeng 2009-06-11 1:22 ` Gui Jianfeng [not found] ` <20090610132638.GB19680-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-06-11 1:22 ` Gui Jianfeng [not found] ` <4A2F0CBE.8030208-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-06-10 13:26 ` Vivek Goyal [not found] ` <4A2E15B6.8030001-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-06-09 17:51 ` Vivek Goyal [not found] ` <1241553525-28095-9-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-13 15:00 ` Vivek Goyal 2009-06-09 7:56 ` Gui Jianfeng 2009-05-05 19:58 ` [PATCH 09/18] io-controller: Separate out queue and data Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 10/18] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-05-05 19:58 ` [PATCH 11/18] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 12/18] io-controller: deadline " Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 13/18] io-controller: anticipatory " Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 14/18] blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 15/18] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 16/18] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 17/18] io-controller: IO group refcounting support Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal [not found] ` <1241553525-28095-18-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 2:59 ` Gui Jianfeng 2009-05-08 2:59 ` Gui Jianfeng 2009-05-08 12:44 ` Vivek Goyal [not found] ` <4A03A013.9000405-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-08 12:44 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 18/18] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-06 21:40 ` IKEDA, Munehiro [not found] ` <4A0203DB.1090809-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-05-06 21:58 ` Vivek Goyal 2009-05-06 21:58 ` Vivek Goyal [not found] ` <20090506215833.GK8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 22:19 ` IKEDA, Munehiro 2009-05-06 22:19 ` IKEDA, Munehiro [not found] ` <4A020CD5.2000308-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-05-06 22:24 ` Vivek Goyal 2009-05-06 22:24 ` Vivek Goyal [not found] ` <20090506222458.GM8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 23:01 ` IKEDA, Munehiro 2009-05-06 23:01 ` IKEDA, Munehiro [not found] ` <1241553525-28095-19-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 21:40 ` IKEDA, Munehiro [not found] ` <1241553525-28095-1-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-05 19:58 ` [PATCH 01/18] io-controller: Documentation Vivek Goyal 2009-05-05 19:58 ` [PATCH 02/18] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-22 6:43 ` Gui Jianfeng 2009-05-22 12:32 ` Vivek Goyal 2009-05-23 20:04 ` Jens Axboe [not found] ` <20090522123231.GA14972-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-23 20:04 ` Jens Axboe [not found] ` <4A164978.1020604-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-22 12:32 ` Vivek Goyal [not found] ` <1241553525-28095-3-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-22 6:43 ` Gui Jianfeng 2009-05-05 19:58 ` [PATCH 03/18] io-controller: Charge for time slice based on average disk rate Vivek Goyal 2009-05-05 19:58 ` [PATCH 04/18] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal 2009-05-05 19:58 ` [PATCH 05/18] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` [PATCH 06/18] io-controller: cfq changes to use " Vivek Goyal 2009-05-05 19:58 ` [PATCH 07/18] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-05-05 19:58 ` [PATCH 08/18] io-controller: idle for sometime on sync queue before expiring it Vivek Goyal 2009-05-05 19:58 ` [PATCH 09/18] io-controller: Separate out queue and data Vivek Goyal 2009-05-05 19:58 ` [PATCH 10/18] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 11/18] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-05-05 19:58 ` [PATCH 12/18] io-controller: deadline " Vivek Goyal 2009-05-05 19:58 ` [PATCH 13/18] io-controller: anticipatory " Vivek Goyal 2009-05-05 19:58 ` [PATCH 14/18] blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-05-05 19:58 ` [PATCH 15/18] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-05-05 19:58 ` [PATCH 16/18] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-05-05 19:58 ` [PATCH 17/18] io-controller: IO group refcounting support Vivek Goyal 2009-05-05 19:58 ` [PATCH 18/18] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-05-05 20:24 ` IO scheduler based IO Controller V2 Andrew Morton 2009-05-05 20:24 ` Andrew Morton 2009-05-05 22:20 ` Peter Zijlstra 2009-05-06 3:42 ` Balbir Singh 2009-05-06 3:42 ` Balbir Singh 2009-05-06 10:20 ` Fabio Checconi 2009-05-06 17:10 ` Balbir Singh 2009-05-06 17:10 ` Balbir Singh [not found] ` <20090506102030.GB20544-f9ZlEuEWxVeACYmtYXMKmw@public.gmane.org> 2009-05-06 17:10 ` Balbir Singh 2009-05-06 18:47 ` Divyesh Shah [not found] ` <20090506034254.GD4416-SINUvgVNF2CyUtPGxGje5AC/G2K4zDHf@public.gmane.org> 2009-05-06 10:20 ` Fabio Checconi 2009-05-06 18:47 ` Divyesh Shah 2009-05-06 20:42 ` Andrea Righi 2009-05-06 20:42 ` Andrea Righi 2009-05-06 2:33 ` Vivek Goyal 2009-05-06 17:59 ` Nauman Rafique 2009-05-06 20:07 ` Andrea Righi 2009-05-06 21:21 ` Vivek Goyal 2009-05-06 21:21 ` Vivek Goyal [not found] ` <20090506212121.GI8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 22:02 ` Andrea Righi 2009-05-06 22:02 ` Andrea Righi 2009-05-06 22:17 ` Vivek Goyal 2009-05-06 22:17 ` Vivek Goyal [not found] ` <20090506023332.GA1212-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 17:59 ` Nauman Rafique 2009-05-06 20:07 ` Andrea Righi 2009-05-06 20:32 ` Vivek Goyal 2009-05-07 0:18 ` Ryo Tsuruta 2009-05-06 20:32 ` Vivek Goyal [not found] ` <20090506203228.GH8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 21:34 ` Andrea Righi 2009-05-06 21:34 ` Andrea Righi 2009-05-06 21:52 ` Vivek Goyal 2009-05-06 21:52 ` Vivek Goyal 2009-05-06 22:35 ` Andrea Righi 2009-05-07 1:48 ` Ryo Tsuruta 2009-05-07 1:48 ` Ryo Tsuruta [not found] ` <20090506215235.GJ8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 22:35 ` Andrea Righi 2009-05-07 9:04 ` Andrea Righi 2009-05-07 9:04 ` Andrea Righi 2009-05-07 12:22 ` Andrea Righi 2009-05-07 12:22 ` Andrea Righi 2009-05-07 14:11 ` Vivek Goyal 2009-05-07 14:11 ` Vivek Goyal [not found] ` <20090507141126.GA9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 14:45 ` Vivek Goyal 2009-05-07 14:45 ` Vivek Goyal [not found] ` <20090507144501.GB9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 15:36 ` Vivek Goyal [this message] 2009-05-07 15:36 ` Vivek Goyal [not found] ` <20090507153642.GC9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 15:42 ` Vivek Goyal 2009-05-07 15:42 ` Vivek Goyal 2009-05-07 22:19 ` Andrea Righi 2009-05-07 22:19 ` Andrea Righi 2009-05-08 18:09 ` Vivek Goyal 2009-05-08 20:05 ` Andrea Righi 2009-05-08 21:56 ` Vivek Goyal 2009-05-08 21:56 ` Vivek Goyal 2009-05-09 9:22 ` Peter Zijlstra 2009-05-14 10:31 ` Andrea Righi [not found] ` <20090508215618.GJ7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-09 9:22 ` Peter Zijlstra 2009-05-14 10:31 ` Andrea Righi 2009-05-14 16:43 ` Dhaval Giani 2009-05-14 16:43 ` Dhaval Giani [not found] ` <20090508180951.GG7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 20:05 ` Andrea Righi 2009-05-08 18:09 ` Vivek Goyal 2009-05-07 22:40 ` Andrea Righi 2009-05-07 22:40 ` Andrea Righi 2009-05-07 0:18 ` Ryo Tsuruta [not found] ` <20090507.091858.226775723.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-07 1:25 ` Vivek Goyal 2009-05-07 1:25 ` Vivek Goyal [not found] ` <20090507012559.GC4187-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-11 11:23 ` Ryo Tsuruta 2009-05-11 11:23 ` Ryo Tsuruta [not found] ` <20090511.202309.112614168.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-11 12:49 ` Vivek Goyal 2009-05-11 12:49 ` Vivek Goyal 2009-05-08 14:24 ` Rik van Riel 2009-05-08 14:24 ` Rik van Riel [not found] ` <4A0440B2.7040300-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-11 10:11 ` Ryo Tsuruta 2009-05-11 10:11 ` Ryo Tsuruta [not found] ` <20090505132441.1705bfad.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> 2009-05-05 22:20 ` Peter Zijlstra 2009-05-06 2:33 ` Vivek Goyal 2009-05-06 3:41 ` Balbir Singh 2009-05-06 3:41 ` Balbir Singh 2009-05-06 13:28 ` Vivek Goyal 2009-05-06 13:28 ` Vivek Goyal [not found] ` <20090506034118.GC4416-SINUvgVNF2CyUtPGxGje5AC/G2K4zDHf@public.gmane.org> 2009-05-06 13:28 ` Vivek Goyal 2009-05-06 8:11 ` Gui Jianfeng 2009-05-08 9:45 ` [PATCH] io-controller: Add io group reference handling for request Gui Jianfeng 2009-05-13 2:00 ` [PATCH] IO Controller: Add per-device weight and ioprio_class handling Gui Jianfeng 2009-05-06 8:11 ` IO scheduler based IO Controller V2 Gui Jianfeng [not found] ` <4A014619.1040000-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-06 16:10 ` Vivek Goyal 2009-05-06 16:10 ` Vivek Goyal 2009-05-07 5:36 ` Li Zefan [not found] ` <4A027348.6000808-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-08 13:37 ` Vivek Goyal 2009-05-08 13:37 ` Vivek Goyal 2009-05-11 2:59 ` Gui Jianfeng [not found] ` <20090508133740.GD7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-11 2:59 ` Gui Jianfeng 2009-05-07 5:47 ` Gui Jianfeng [not found] ` <20090506161012.GC8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 5:36 ` Li Zefan 2009-05-07 5:47 ` Gui Jianfeng 2009-05-08 9:45 ` [PATCH] io-controller: Add io group reference handling for request Gui Jianfeng [not found] ` <4A03FF3C.4020506-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-08 13:57 ` Vivek Goyal 2009-05-08 13:57 ` Vivek Goyal [not found] ` <20090508135724.GE7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 17:41 ` Nauman Rafique 2009-05-08 17:41 ` Nauman Rafique 2009-05-08 17:41 ` Nauman Rafique 2009-05-08 18:56 ` Vivek Goyal [not found] ` <20090508185644.GH7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 19:06 ` Nauman Rafique 2009-05-08 19:06 ` Nauman Rafique 2009-05-08 19:06 ` Nauman Rafique 2009-05-11 1:33 ` Gui Jianfeng 2009-05-11 15:41 ` Vivek Goyal [not found] ` <20090511154127.GD6036-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-15 5:15 ` Gui Jianfeng 2009-05-15 5:15 ` Gui Jianfeng 2009-05-15 7:48 ` Andrea Righi 2009-05-15 8:16 ` Gui Jianfeng 2009-05-15 8:16 ` Gui Jianfeng [not found] ` <4A0D24E6.6010807-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-15 14:09 ` Vivek Goyal 2009-05-15 14:09 ` Vivek Goyal 2009-05-15 14:06 ` Vivek Goyal 2009-05-15 14:06 ` Vivek Goyal 2009-05-17 10:26 ` Andrea Righi 2009-05-18 14:01 ` Vivek Goyal 2009-05-18 14:01 ` Vivek Goyal 2009-05-18 14:39 ` Andrea Righi 2009-05-26 11:34 ` Ryo Tsuruta 2009-05-26 11:34 ` Ryo Tsuruta 2009-05-27 6:56 ` Ryo Tsuruta 2009-05-27 6:56 ` Ryo Tsuruta 2009-05-27 8:17 ` Andrea Righi 2009-05-27 8:17 ` Andrea Righi 2009-05-27 11:53 ` Ryo Tsuruta 2009-05-27 11:53 ` Ryo Tsuruta 2009-05-27 17:32 ` Vivek Goyal 2009-05-27 17:32 ` Vivek Goyal [not found] ` <20090527.155631.226800550.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-27 8:17 ` Andrea Righi 2009-05-27 17:32 ` Vivek Goyal [not found] ` <20090526.203424.39179999.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-27 6:56 ` Ryo Tsuruta 2009-05-19 12:18 ` Ryo Tsuruta [not found] ` <20090518140114.GB27080-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-18 14:39 ` Andrea Righi 2009-05-19 12:18 ` Ryo Tsuruta [not found] ` <20090515140643.GB19350-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-17 10:26 ` Andrea Righi [not found] ` <4A0CFA6C.3080609-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-15 7:48 ` Andrea Righi 2009-05-15 7:40 ` Gui Jianfeng 2009-05-15 7:40 ` Gui Jianfeng 2009-05-15 14:01 ` Vivek Goyal [not found] ` <4A0D1C55.9040700-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-15 14:01 ` Vivek Goyal [not found] ` <4A078051.5060702-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-11 15:41 ` Vivek Goyal [not found] ` <e98e18940905081041r386e52a5q5a2b1f13f1e8c634-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2009-05-08 18:56 ` Vivek Goyal 2009-05-11 1:33 ` Gui Jianfeng 2009-05-13 2:00 ` [PATCH] IO Controller: Add per-device weight and ioprio_class handling Gui Jianfeng 2009-05-13 14:44 ` Vivek Goyal [not found] ` <20090513144432.GA7696-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 0:59 ` Gui Jianfeng 2009-05-14 0:59 ` Gui Jianfeng 2009-05-13 15:29 ` Vivek Goyal 2009-05-14 1:02 ` Gui Jianfeng [not found] ` <20090513152909.GD7696-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:02 ` Gui Jianfeng 2009-05-13 15:59 ` Vivek Goyal 2009-05-14 1:51 ` Gui Jianfeng [not found] ` <20090513155900.GA15623-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:51 ` Gui Jianfeng 2009-05-14 2:25 ` Gui Jianfeng 2009-05-14 2:25 ` Gui Jianfeng [not found] ` <4A0A29B5.7030109-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-13 14:44 ` Vivek Goyal 2009-05-13 15:29 ` Vivek Goyal 2009-05-13 15:59 ` Vivek Goyal 2009-05-13 17:17 ` Vivek Goyal 2009-05-13 19:09 ` Vivek Goyal 2009-05-13 17:17 ` Vivek Goyal [not found] ` <20090513171734.GA18371-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:24 ` Gui Jianfeng 2009-05-14 1:24 ` Gui Jianfeng 2009-05-13 19:09 ` Vivek Goyal 2009-05-14 1:35 ` Gui Jianfeng [not found] ` <20090513190929.GB18371-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:35 ` Gui Jianfeng 2009-05-14 7:26 ` Gui Jianfeng 2009-05-14 7:26 ` Gui Jianfeng 2009-05-14 15:15 ` Vivek Goyal 2009-05-18 22:33 ` IKEDA, Munehiro 2009-05-20 1:44 ` Gui Jianfeng [not found] ` <4A136090.5090705-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-20 15:41 ` IKEDA, Munehiro 2009-05-20 15:41 ` IKEDA, Munehiro [not found] ` <4A11E244.2000305-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-05-20 1:44 ` Gui Jianfeng [not found] ` <4A0BC7AB.8030703-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-14 15:15 ` Vivek Goyal 2009-05-18 22:33 ` IKEDA, Munehiro -- strict thread matches above, loose matches on Subject: below -- 2009-05-05 19:58 IO scheduler based IO Controller V2 Vivek Goyal 2009-05-05 19:58 Vivek Goyal
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