From: Vivek Goyal <vgoyal@redhat.com> To: linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, dm-devel@redhat.com, jens.axboe@oracle.com, ryov@valinux.co.jp, balbir@linux.vnet.ibm.com, righi.andrea@gmail.com Cc: nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com, mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it, 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, m-ikeda@ds.jp.nec.com, agk@redhat.com, vgoyal@redhat.com, akpm@linux-foundation.org, peterz@infradead.org, jmarchan@redhat.com Subject: [PATCH 23/24] io-controller: map sync requests to group using bio tracking info Date: Sun, 16 Aug 2009 15:30:45 -0400 [thread overview] Message-ID: <1250451046-9966-24-git-send-email-vgoyal@redhat.com> (raw) In-Reply-To: <1250451046-9966-1-git-send-email-vgoyal@redhat.com> o sync requests are mapped to the cgroup submitting tasks belongs to. This is an experimental patch where sync requets can be mapped to the group using bio tracking information and not submitting task's context. o This patch implements this functionality only for noop, deadline and AS. o Introducing this patch for experimental purposes to see if it is really meaningful or not. o This behavior is turned on by setting /sys/block/<disk>/queue/iosched/map_sync varibale. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> --- block/as-iosched.c | 1 + block/deadline-iosched.c | 1 + block/elevator-fq.c | 7 ++++++- block/elevator-fq.h | 9 +++++++++ block/noop-iosched.c | 1 + 5 files changed, 18 insertions(+), 1 deletions(-) diff --git a/block/as-iosched.c b/block/as-iosched.c index 8ea9398..2a72da1 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -1769,6 +1769,7 @@ static struct elv_fs_entry as_attrs[] = { ELV_ATTR(fairness), ELV_ATTR(slice_sync), ELV_ATTR(group_idle), + ELV_ATTR(map_sync), #endif __ATTR_NULL }; diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index cc9c8c3..80377a9 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -466,6 +466,7 @@ static struct elv_fs_entry deadline_attrs[] = { ELV_ATTR(fairness), ELV_ATTR(slice_sync), ELV_ATTR(group_idle), + ELV_ATTR(map_sync), #endif __ATTR_NULL }; diff --git a/block/elevator-fq.c b/block/elevator-fq.c index 70d0ecf..2f7a419 100644 --- a/block/elevator-fq.c +++ b/block/elevator-fq.c @@ -681,6 +681,8 @@ SHOW_FUNCTION(elv_slice_async_show, efqd->elv_slice[0], 1); EXPORT_SYMBOL(elv_slice_async_show); SHOW_FUNCTION(elv_fairness_show, efqd->fairness, 0); EXPORT_SYMBOL(elv_fairness_show); +SHOW_FUNCTION(elv_map_sync_show, efqd->map_sync, 0); +EXPORT_SYMBOL(elv_map_sync_show); #undef SHOW_FUNCTION #define STORE_FUNCTION(__FUNC, __PTR, MIN, MAX, __CONV) \ @@ -707,6 +709,8 @@ STORE_FUNCTION(elv_slice_async_store, &efqd->elv_slice[0], 1, UINT_MAX, 1); EXPORT_SYMBOL(elv_slice_async_store); STORE_FUNCTION(elv_fairness_store, &efqd->fairness, 0, 1, 0); EXPORT_SYMBOL(elv_fairness_store); +STORE_FUNCTION(elv_map_sync_store, &efqd->map_sync, 0, 1, 0); +EXPORT_SYMBOL(elv_map_sync_store); #undef STORE_FUNCTION void elv_schedule_dispatch(struct request_queue *q) @@ -1713,6 +1717,7 @@ struct io_group *elv_io_get_io_group_bio(struct request_queue *q, struct bio *bio, int create) { struct page *page = NULL; + struct elv_fq_data *efqd = q->elevator->efqd; /* * Determine the group from task context. Even calls from @@ -1731,7 +1736,7 @@ struct io_group *elv_io_get_io_group_bio(struct request_queue *q, } /* Map the sync bio to the right group using task context */ - if (elv_bio_sync(bio)) + if (elv_bio_sync(bio) && !efqd->map_sync) goto sync; #ifdef CONFIG_TRACK_ASYNC_CONTEXT diff --git a/block/elevator-fq.h b/block/elevator-fq.h index 53e5a03..57ff85f 100644 --- a/block/elevator-fq.h +++ b/block/elevator-fq.h @@ -205,6 +205,12 @@ struct elv_fq_data { * queue before new queue is scheduled in */ unsigned int fairness; + + /* + * Get io group bio belongs to from bio and not from submitting task + * context + */ + unsigned int map_sync; }; /* Logging facilities. */ @@ -436,6 +442,9 @@ extern struct io_group *elv_io_get_io_group_bio(struct request_queue *q, extern ssize_t elv_group_idle_show(struct elevator_queue *q, char *name); extern ssize_t elv_group_idle_store(struct elevator_queue *q, const char *name, size_t count); +extern ssize_t elv_map_sync_show(struct elevator_queue *q, char *name); +extern ssize_t elv_map_sync_store(struct elevator_queue *q, const char *name, + size_t count); extern void elv_io_group_congestion_threshold(struct request_queue *q, struct io_group *iog); static inline void elv_get_iog(struct io_group *iog) diff --git a/block/noop-iosched.c b/block/noop-iosched.c index 4ba496f..887bba1 100644 --- a/block/noop-iosched.c +++ b/block/noop-iosched.c @@ -88,6 +88,7 @@ static struct elv_fs_entry noop_attrs[] = { ELV_ATTR(fairness), ELV_ATTR(slice_sync), ELV_ATTR(group_idle), + ELV_ATTR(map_sync), __ATTR_NULL }; #endif -- 1.6.0.6
WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com> To: linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, dm-devel@redhat.com, jens.axboe@oracle.com, ryov@valinux.co.jp, balbir@linux.vnet.ibm.com, righi.andrea@gmail.com Cc: paolo.valente@unimore.it, jmarchan@redhat.com, dhaval@linux.vnet.ibm.com, peterz@infradead.org, guijianfeng@cn.fujitsu.com, fernando@oss.ntt.co.jp, lizf@cn.fujitsu.com, jmoyer@redhat.com, mikew@google.com, fchecconi@gmail.com, dpshah@google.com, vgoyal@redhat.com, nauman@google.com, s-uchida@ap.jp.nec.com, akpm@linux-foundation.org, agk@redhat.com, m-ikeda@ds.jp.nec.com Subject: [PATCH 23/24] io-controller: map sync requests to group using bio tracking info Date: Sun, 16 Aug 2009 15:30:45 -0400 [thread overview] Message-ID: <1250451046-9966-24-git-send-email-vgoyal@redhat.com> (raw) In-Reply-To: <1250451046-9966-1-git-send-email-vgoyal@redhat.com> o sync requests are mapped to the cgroup submitting tasks belongs to. This is an experimental patch where sync requets can be mapped to the group using bio tracking information and not submitting task's context. o This patch implements this functionality only for noop, deadline and AS. o Introducing this patch for experimental purposes to see if it is really meaningful or not. o This behavior is turned on by setting /sys/block/<disk>/queue/iosched/map_sync varibale. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> --- block/as-iosched.c | 1 + block/deadline-iosched.c | 1 + block/elevator-fq.c | 7 ++++++- block/elevator-fq.h | 9 +++++++++ block/noop-iosched.c | 1 + 5 files changed, 18 insertions(+), 1 deletions(-) diff --git a/block/as-iosched.c b/block/as-iosched.c index 8ea9398..2a72da1 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -1769,6 +1769,7 @@ static struct elv_fs_entry as_attrs[] = { ELV_ATTR(fairness), ELV_ATTR(slice_sync), ELV_ATTR(group_idle), + ELV_ATTR(map_sync), #endif __ATTR_NULL }; diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index cc9c8c3..80377a9 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -466,6 +466,7 @@ static struct elv_fs_entry deadline_attrs[] = { ELV_ATTR(fairness), ELV_ATTR(slice_sync), ELV_ATTR(group_idle), + ELV_ATTR(map_sync), #endif __ATTR_NULL }; diff --git a/block/elevator-fq.c b/block/elevator-fq.c index 70d0ecf..2f7a419 100644 --- a/block/elevator-fq.c +++ b/block/elevator-fq.c @@ -681,6 +681,8 @@ SHOW_FUNCTION(elv_slice_async_show, efqd->elv_slice[0], 1); EXPORT_SYMBOL(elv_slice_async_show); SHOW_FUNCTION(elv_fairness_show, efqd->fairness, 0); EXPORT_SYMBOL(elv_fairness_show); +SHOW_FUNCTION(elv_map_sync_show, efqd->map_sync, 0); +EXPORT_SYMBOL(elv_map_sync_show); #undef SHOW_FUNCTION #define STORE_FUNCTION(__FUNC, __PTR, MIN, MAX, __CONV) \ @@ -707,6 +709,8 @@ STORE_FUNCTION(elv_slice_async_store, &efqd->elv_slice[0], 1, UINT_MAX, 1); EXPORT_SYMBOL(elv_slice_async_store); STORE_FUNCTION(elv_fairness_store, &efqd->fairness, 0, 1, 0); EXPORT_SYMBOL(elv_fairness_store); +STORE_FUNCTION(elv_map_sync_store, &efqd->map_sync, 0, 1, 0); +EXPORT_SYMBOL(elv_map_sync_store); #undef STORE_FUNCTION void elv_schedule_dispatch(struct request_queue *q) @@ -1713,6 +1717,7 @@ struct io_group *elv_io_get_io_group_bio(struct request_queue *q, struct bio *bio, int create) { struct page *page = NULL; + struct elv_fq_data *efqd = q->elevator->efqd; /* * Determine the group from task context. Even calls from @@ -1731,7 +1736,7 @@ struct io_group *elv_io_get_io_group_bio(struct request_queue *q, } /* Map the sync bio to the right group using task context */ - if (elv_bio_sync(bio)) + if (elv_bio_sync(bio) && !efqd->map_sync) goto sync; #ifdef CONFIG_TRACK_ASYNC_CONTEXT diff --git a/block/elevator-fq.h b/block/elevator-fq.h index 53e5a03..57ff85f 100644 --- a/block/elevator-fq.h +++ b/block/elevator-fq.h @@ -205,6 +205,12 @@ struct elv_fq_data { * queue before new queue is scheduled in */ unsigned int fairness; + + /* + * Get io group bio belongs to from bio and not from submitting task + * context + */ + unsigned int map_sync; }; /* Logging facilities. */ @@ -436,6 +442,9 @@ extern struct io_group *elv_io_get_io_group_bio(struct request_queue *q, extern ssize_t elv_group_idle_show(struct elevator_queue *q, char *name); extern ssize_t elv_group_idle_store(struct elevator_queue *q, const char *name, size_t count); +extern ssize_t elv_map_sync_show(struct elevator_queue *q, char *name); +extern ssize_t elv_map_sync_store(struct elevator_queue *q, const char *name, + size_t count); extern void elv_io_group_congestion_threshold(struct request_queue *q, struct io_group *iog); static inline void elv_get_iog(struct io_group *iog) diff --git a/block/noop-iosched.c b/block/noop-iosched.c index 4ba496f..887bba1 100644 --- a/block/noop-iosched.c +++ b/block/noop-iosched.c @@ -88,6 +88,7 @@ static struct elv_fs_entry noop_attrs[] = { ELV_ATTR(fairness), ELV_ATTR(slice_sync), ELV_ATTR(group_idle), + ELV_ATTR(map_sync), __ATTR_NULL }; #endif -- 1.6.0.6
next prev parent reply other threads:[~2009-08-16 19:32 UTC|newest] Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-08-16 19:30 [RFC] IO scheduler based IO controller V8 Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 01/24] io-controller: Documentation Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal [not found] ` <1250451046-9966-2-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-25 3:36 ` Rik van Riel 2009-08-25 3:36 ` Rik van Riel 2009-08-25 3:36 ` Rik van Riel 2009-08-16 19:30 ` [PATCH 02/24] io-controller: Core of the elevator fair queuing Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-17 5:29 ` Gui Jianfeng 2009-08-17 5:29 ` Gui Jianfeng 2009-08-17 20:37 ` Vivek Goyal 2009-08-17 20:37 ` Vivek Goyal [not found] ` <4A88EACC.6010805-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-08-17 20:37 ` Vivek Goyal 2009-08-19 16:01 ` Jerome Marchand 2009-08-19 18:41 ` Vivek Goyal 2009-08-19 18:41 ` Vivek Goyal 2009-08-20 14:51 ` Jerome Marchand 2009-08-20 15:04 ` Vivek Goyal 2009-08-20 15:04 ` Vivek Goyal [not found] ` <4A8D6302.3080301-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-20 15:04 ` Vivek Goyal [not found] ` <20090819184142.GD4391-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-20 14:51 ` Jerome Marchand [not found] ` <4A8C21DE.1080001-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-19 18:41 ` Vivek Goyal 2009-08-19 18:30 ` Vivek Goyal 2009-08-19 18:30 ` Vivek Goyal 2009-08-21 1:54 ` Gui Jianfeng [not found] ` <4A8DFE3A.6030503-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-08-21 2:00 ` Vivek Goyal 2009-08-21 2:00 ` Vivek Goyal 2009-08-21 2:00 ` Vivek Goyal [not found] ` <1250451046-9966-3-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-17 5:29 ` Gui Jianfeng 2009-08-19 16:01 ` Jerome Marchand 2009-08-19 18:30 ` Vivek Goyal 2009-08-21 1:54 ` Gui Jianfeng 2009-08-27 2:49 ` Gui Jianfeng 2009-08-27 2:49 ` Gui Jianfeng 2009-08-27 21:08 ` Vivek Goyal 2009-08-27 21:08 ` Vivek Goyal [not found] ` <4A95F444.9040705-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-08-27 21:08 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 03/24] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-19 3:36 ` Gui Jianfeng [not found] ` <4A8B7336.7010800-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-08-19 18:39 ` Vivek Goyal 2009-08-19 18:39 ` Vivek Goyal 2009-08-19 18:39 ` Vivek Goyal [not found] ` <1250451046-9966-4-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-19 3:36 ` Gui Jianfeng 2009-08-19 3:36 ` Gui Jianfeng 2009-08-16 19:30 ` [PATCH 04/24] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 05/24] io-controller: Core scheduler changes to support hierarhical scheduling Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 06/24] io-controller: cgroup related changes for hierarchical group support Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 07/24] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal [not found] ` <1250451046-9966-1-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-16 19:30 ` [PATCH 01/24] io-controller: Documentation Vivek Goyal 2009-08-16 19:30 ` [PATCH 02/24] io-controller: Core of the elevator fair queuing Vivek Goyal 2009-08-16 19:30 ` [PATCH 03/24] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-08-16 19:30 ` [PATCH 04/24] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal 2009-08-16 19:30 ` [PATCH 05/24] io-controller: Core scheduler changes to support hierarhical scheduling Vivek Goyal 2009-08-16 19:30 ` [PATCH 06/24] io-controller: cgroup related changes for hierarchical group support Vivek Goyal 2009-08-16 19:30 ` [PATCH 07/24] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-08-16 19:30 ` [PATCH 08/24] io-controller: cfq changes to use " Vivek Goyal 2009-08-16 19:30 ` [PATCH 09/24] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-08-16 19:30 ` [PATCH 10/24] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-08-16 19:30 ` [PATCH 11/24] io-controller: Introduce group idling Vivek Goyal 2009-08-16 19:30 ` [PATCH 12/24] io-controller: Wait for requests to complete from last queue before new queue is scheduled Vivek Goyal 2009-08-16 19:30 ` [PATCH 13/24] io-controller: Separate out queue and data Vivek Goyal 2009-08-16 19:30 ` [PATCH 14/24] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-08-16 19:30 ` [PATCH 15/24] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-08-16 19:30 ` [PATCH 16/24] io-controller: deadline " Vivek Goyal 2009-08-16 19:30 ` [PATCH 17/24] io-controller: anticipatory " Vivek Goyal 2009-08-16 19:30 ` [PATCH 18/24] blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-08-16 19:30 ` [PATCH 19/24] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-08-16 19:30 ` [PATCH 20/24] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-08-16 19:30 ` [PATCH 21/24] io-controller: Per io group bdi congestion interface Vivek Goyal 2009-08-16 19:30 ` [PATCH 22/24] io-controller: Support per cgroup per device weights and io class Vivek Goyal 2009-08-16 19:30 ` [PATCH 23/24] io-controller: map sync requests to group using bio tracking info Vivek Goyal 2009-08-16 19:30 ` [PATCH 24/24] io-controller: debug elevator fair queuing support Vivek Goyal 2009-08-16 19:53 ` [RFC] IO scheduler based IO controller V8 Vivek Goyal 2009-08-16 19:30 ` [PATCH 08/24] io-controller: cfq changes to use hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 09/24] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 10/24] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 11/24] io-controller: Introduce group idling Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-20 1:46 ` [PATCH] IO-Controller: clear ioq wait flag if a request goes into that ioq Gui Jianfeng [not found] ` <4A8CAAE2.1030804-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-08-20 13:42 ` Vivek Goyal 2009-08-20 13:42 ` Vivek Goyal 2009-08-20 13:42 ` Vivek Goyal [not found] ` <20090820134221.GC10615-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-21 0:57 ` Gui Jianfeng 2009-08-21 0:57 ` Gui Jianfeng [not found] ` <1250451046-9966-12-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-20 1:46 ` Gui Jianfeng 2009-08-28 1:12 ` [PATCH 11/24] io-controller: Introduce group idling Gui Jianfeng 2009-08-28 1:12 ` Gui Jianfeng 2009-08-28 1:12 ` Gui Jianfeng 2009-08-16 19:30 ` [PATCH 12/24] io-controller: Wait for requests to complete from last queue before new queue is scheduled Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-24 3:30 ` Gui Jianfeng [not found] ` <1250451046-9966-13-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-24 3:30 ` Gui Jianfeng 2009-08-16 19:30 ` [PATCH 13/24] io-controller: Separate out queue and data Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 14/24] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 15/24] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 16/24] io-controller: deadline " Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 17/24] io-controller: anticipatory " Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 18/24] blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-18 11:42 ` Ryo Tsuruta 2009-08-18 11:42 ` Ryo Tsuruta [not found] ` <20090818.204212.59676649.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-08-18 14:26 ` Vivek Goyal 2009-08-18 14:26 ` Vivek Goyal 2009-08-18 14:26 ` Vivek Goyal 2009-08-19 1:43 ` Ryo Tsuruta [not found] ` <20090818142636.GA7367-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-19 1:43 ` Ryo Tsuruta [not found] ` <1250451046-9966-19-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-18 11:42 ` Ryo Tsuruta 2009-08-16 19:30 ` [PATCH 19/24] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 20/24] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 21/24] io-controller: Per io group bdi congestion interface Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` [PATCH 22/24] io-controller: Support per cgroup per device weights and io class Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal [this message] 2009-08-16 19:30 ` [PATCH 23/24] io-controller: map sync requests to group using bio tracking info Vivek Goyal 2009-08-16 19:30 ` [PATCH 24/24] io-controller: debug elevator fair queuing support Vivek Goyal 2009-08-16 19:30 ` Vivek Goyal 2009-08-16 19:53 ` [RFC] IO scheduler based IO controller V8 Vivek Goyal 2009-08-16 19:53 ` Vivek Goyal
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