[linux-yocto] [PATCH 1/3] block: cgroups, kconfig, build bits for BFQ-v7r5-3.14
From: Paolo Valente paolo.vale...@unimore.it Original patch taken from: http://algo.ing.unimo.it/people/paolo/disk_sched/patches/3.14.0-v7r5 Update Kconfig.iosched and do the related Makefile changes to include kernel configuration options for BFQ. Also add the bfqio controller to the cgroups subsystem. Signed-off-by: Paolo Valente paolo.vale...@unimore.it Signed-off-by: Arianna Avanzini avanzini.aria...@gmail.com Signed-off-by: Jianchuan Wang jianchuan.w...@windriver.com --- block/Kconfig.iosched | 32 block/Makefile| 1 + include/linux/cgroup_subsys.h | 4 3 files changed, 37 insertions(+) diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched index 421bef9..0ee5f0f 100644 --- a/block/Kconfig.iosched +++ b/block/Kconfig.iosched @@ -39,6 +39,27 @@ config CFQ_GROUP_IOSCHED ---help--- Enable group IO scheduling in CFQ. +config IOSCHED_BFQ + tristate BFQ I/O scheduler + default n + ---help--- + The BFQ I/O scheduler tries to distribute bandwidth among + all processes according to their weights. + It aims at distributing the bandwidth as desired, independently of + the disk parameters and with any workload. It also tries to + guarantee low latency to interactive and soft real-time + applications. If compiled built-in (saying Y here), BFQ can + be configured to support hierarchical scheduling. + +config CGROUP_BFQIO + bool BFQ hierarchical scheduling support + depends on CGROUPS IOSCHED_BFQ=y + default n + ---help--- + Enable hierarchical scheduling in BFQ, using the cgroups + filesystem interface. The name of the subsystem will be + bfqio. + choice prompt Default I/O scheduler default DEFAULT_CFQ @@ -52,6 +73,16 @@ choice config DEFAULT_CFQ bool CFQ if IOSCHED_CFQ=y + config DEFAULT_BFQ + bool BFQ if IOSCHED_BFQ=y + help + Selects BFQ as the default I/O scheduler which will be + used by default for all block devices. + The BFQ I/O scheduler aims at distributing the bandwidth + as desired, independently of the disk parameters and with + any workload. It also tries to guarantee low latency to + interactive and soft real-time applications. + config DEFAULT_NOOP bool No-op @@ -61,6 +92,7 @@ config DEFAULT_IOSCHED string default deadline if DEFAULT_DEADLINE default cfq if DEFAULT_CFQ + default bfq if DEFAULT_BFQ default noop if DEFAULT_NOOP endmenu diff --git a/block/Makefile b/block/Makefile index 20645e8..cbd83fb 100644 --- a/block/Makefile +++ b/block/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_BLK_DEV_THROTTLING) += blk-throttle.o obj-$(CONFIG_IOSCHED_NOOP) += noop-iosched.o obj-$(CONFIG_IOSCHED_DEADLINE) += deadline-iosched.o obj-$(CONFIG_IOSCHED_CFQ) += cfq-iosched.o +obj-$(CONFIG_IOSCHED_BFQ) += bfq-iosched.o obj-$(CONFIG_BLOCK_COMPAT) += compat_ioctl.o obj-$(CONFIG_BLK_DEV_INTEGRITY)+= blk-integrity.o diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index 7b99d71..4e8c0ff 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -39,6 +39,10 @@ SUBSYS(net_cls) SUBSYS(blkio) #endif +#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_BFQIO) +SUBSYS(bfqio) +#endif + #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_PERF) SUBSYS(perf) #endif -- 1.9.1 -- ___ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
[linux-yocto] [PATCH 1/3] block: cgroups, kconfig, build bits for BFQ-v7r5-3.14
From: Paolo Valente paolo.vale...@unimore.it Original patch taken from: http://algo.ing.unimo.it/people/paolo/disk_sched/patches/3.14.0-v7r5 Update Kconfig.iosched and do the related Makefile changes to include kernel configuration options for BFQ. Also add the bfqio controller to the cgroups subsystem. Signed-off-by: Paolo Valente paolo.vale...@unimore.it Signed-off-by: Arianna Avanzini avanzini.aria...@gmail.com Signed-off-by: Jianchuan Wang jianchuan.w...@windriver.com --- block/Kconfig.iosched | 32 block/Makefile| 1 + include/linux/cgroup_subsys.h | 4 3 files changed, 37 insertions(+) diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched index 421bef9..0ee5f0f 100644 --- a/block/Kconfig.iosched +++ b/block/Kconfig.iosched @@ -39,6 +39,27 @@ config CFQ_GROUP_IOSCHED ---help--- Enable group IO scheduling in CFQ. +config IOSCHED_BFQ + tristate BFQ I/O scheduler + default n + ---help--- + The BFQ I/O scheduler tries to distribute bandwidth among + all processes according to their weights. + It aims at distributing the bandwidth as desired, independently of + the disk parameters and with any workload. It also tries to + guarantee low latency to interactive and soft real-time + applications. If compiled built-in (saying Y here), BFQ can + be configured to support hierarchical scheduling. + +config CGROUP_BFQIO + bool BFQ hierarchical scheduling support + depends on CGROUPS IOSCHED_BFQ=y + default n + ---help--- + Enable hierarchical scheduling in BFQ, using the cgroups + filesystem interface. The name of the subsystem will be + bfqio. + choice prompt Default I/O scheduler default DEFAULT_CFQ @@ -52,6 +73,16 @@ choice config DEFAULT_CFQ bool CFQ if IOSCHED_CFQ=y + config DEFAULT_BFQ + bool BFQ if IOSCHED_BFQ=y + help + Selects BFQ as the default I/O scheduler which will be + used by default for all block devices. + The BFQ I/O scheduler aims at distributing the bandwidth + as desired, independently of the disk parameters and with + any workload. It also tries to guarantee low latency to + interactive and soft real-time applications. + config DEFAULT_NOOP bool No-op @@ -61,6 +92,7 @@ config DEFAULT_IOSCHED string default deadline if DEFAULT_DEADLINE default cfq if DEFAULT_CFQ + default bfq if DEFAULT_BFQ default noop if DEFAULT_NOOP endmenu diff --git a/block/Makefile b/block/Makefile index 20645e8..cbd83fb 100644 --- a/block/Makefile +++ b/block/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_BLK_DEV_THROTTLING) += blk-throttle.o obj-$(CONFIG_IOSCHED_NOOP) += noop-iosched.o obj-$(CONFIG_IOSCHED_DEADLINE) += deadline-iosched.o obj-$(CONFIG_IOSCHED_CFQ) += cfq-iosched.o +obj-$(CONFIG_IOSCHED_BFQ) += bfq-iosched.o obj-$(CONFIG_BLOCK_COMPAT) += compat_ioctl.o obj-$(CONFIG_BLK_DEV_INTEGRITY)+= blk-integrity.o diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index 7b99d71..4e8c0ff 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -39,6 +39,10 @@ SUBSYS(net_cls) SUBSYS(blkio) #endif +#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_BFQIO) +SUBSYS(bfqio) +#endif + #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_PERF) SUBSYS(perf) #endif -- 1.9.1 -- ___ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
