For the v9 series: Reviewed-and-tested-by: Bill Fischofer <bill.fischo...@linaro.org>
I also verified that there are no conflicts between this series and Petri's queue cleanup patch, so this can apply and run just fine on top of it. Maxim should be able to merge both tomorrow. On Mon, Jun 19, 2017 at 2:12 PM, Brian Brooks <brian.bro...@arm.com> wrote: > This work derives from Ola Liljedahl's prototype [1] which introduced a > scalable scheduler design based on primarily lock-free algorithms and > data structures designed to decrease contention. A thread searches > through a data structure containing only queues that are both non-empty > and allowed to be scheduled to that thread. Strict priority scheduling is > respected, and (W)RR scheduling may be used within queues of the same > priority. > Lastly, pre-scheduling or stashing is not employed since it is optional > functionality that can be implemented in the application. > > In addition to scalable ring buffers, the algorithm also uses unbounded > concurrent queues. LL/SC and CAS variants exist in cases where absense of > ABA problem cannot be proved, and also in cases where the compiler's atomic > built-ins may not be lowered to the desired instruction(s). Finally, a version > of the algorithm that uses locks is also provided. > > Use --enable-schedule-scalable to conditionally compile this scheduler > into the library. > > [1] https://lists.linaro.org/pipermail/lng-odp/2016-September/025682.html > > On checkpatch.pl: > - [2/6] and [5/6] have checkpatch.pl issues that are superfluous > > v9: > - Include patch to enable scalable scheduler in Travis CI > - Fix 'make distcheck' > > v8: > - Reword commit messages > > v7: > - Rebase against new modular queue interface > - Duplicate arch files under mips64 and powerpc > - Fix sched->order_lock() > - Loop until all deferred events have been enqueued > - Implement ord_enq_multi() > - Fix ordered_lock/unlock > - Revert stylistic changes > - Add default xfactor > - Remove changes to odp_sched_latency > - Remove ULL suffix to alleviate Clang build > > v6: > - Move conversions into scalable scheduler to alleviate #ifdefs > - Remove unnecessary prefetch > - Fix ARMv8 build > > v5: > - Allocate cache aligned memory using shm pool APIs > - Move more code to scalable scheduler specific files > - Remove CONFIG_SPLIT_READWRITE > - Fix 'make distcheck' issue > > v4: > - Fix a couple more checkpatch.pl issues > > v3: > - Only conditionally compile scalable scheduler and queue > - Move some code to arch/ dir > - Use a single shm block for queues instead of block-per-queue > - De-interleave odp_llqueue.h > - Use compiler macros to determine ATOM_BITSET_SIZE > - Incorporated queue size changes > - Dropped 'ODP_' prefix on config and moved to other files > - Dropped a few patches that were send independently to the list > > v2: > - Move ARMv8 issues and other fixes into separate patches > - Abstract away some #ifdefs > - Fix some checkpatch.pl warnings > > Brian Brooks (5): > test: odp_pktio_ordered: add queue size > linux-gen: sched scalable: add arch files > linux-gen: sched scalable: add a bitset > linux-gen: sched scalable: add a concurrent queue > linux-gen: sched scalable: add scalable scheduler > > Honnappa Nagarahalli (1): > travis: add scalable scheduler in CI > > .travis.yml | 1 + > configure.ac | 1 + > platform/linux-generic/Makefile.am | 17 + > platform/linux-generic/arch/arm/odp_atomic.h | 210 +++ > platform/linux-generic/arch/arm/odp_cpu.h | 65 + > platform/linux-generic/arch/arm/odp_cpu_idling.h | 51 + > platform/linux-generic/arch/arm/odp_llsc.h | 249 +++ > platform/linux-generic/arch/default/odp_cpu.h | 41 + > platform/linux-generic/arch/mips64/odp_cpu.h | 41 + > platform/linux-generic/arch/powerpc/odp_cpu.h | 41 + > platform/linux-generic/arch/x86/odp_cpu.h | 41 + > .../include/odp/api/plat/schedule_types.h | 4 +- > platform/linux-generic/include/odp_bitset.h | 210 +++ > .../linux-generic/include/odp_config_internal.h | 17 +- > platform/linux-generic/include/odp_llqueue.h | 309 +++ > .../include/odp_queue_scalable_internal.h | 102 + > platform/linux-generic/include/odp_schedule_if.h | 2 +- > .../linux-generic/include/odp_schedule_scalable.h | 137 ++ > .../include/odp_schedule_scalable_config.h | 55 + > .../include/odp_schedule_scalable_ordered.h | 132 ++ > platform/linux-generic/m4/odp_schedule.m4 | 55 +- > platform/linux-generic/odp_queue_if.c | 8 + > platform/linux-generic/odp_queue_scalable.c | 1020 ++++++++++ > platform/linux-generic/odp_schedule_if.c | 6 + > platform/linux-generic/odp_schedule_scalable.c | 1978 > ++++++++++++++++++++ > .../linux-generic/odp_schedule_scalable_ordered.c | 347 ++++ > test/common_plat/performance/odp_pktio_ordered.c | 4 + > 27 files changed, 5122 insertions(+), 22 deletions(-) > create mode 100644 platform/linux-generic/arch/arm/odp_atomic.h > create mode 100644 platform/linux-generic/arch/arm/odp_cpu.h > create mode 100644 platform/linux-generic/arch/arm/odp_cpu_idling.h > create mode 100644 platform/linux-generic/arch/arm/odp_llsc.h > create mode 100644 platform/linux-generic/arch/default/odp_cpu.h > create mode 100644 platform/linux-generic/arch/mips64/odp_cpu.h > create mode 100644 platform/linux-generic/arch/powerpc/odp_cpu.h > create mode 100644 platform/linux-generic/arch/x86/odp_cpu.h > create mode 100644 platform/linux-generic/include/odp_bitset.h > create mode 100644 platform/linux-generic/include/odp_llqueue.h > create mode 100644 > platform/linux-generic/include/odp_queue_scalable_internal.h > create mode 100644 platform/linux-generic/include/odp_schedule_scalable.h > create mode 100644 > platform/linux-generic/include/odp_schedule_scalable_config.h > create mode 100644 > platform/linux-generic/include/odp_schedule_scalable_ordered.h > create mode 100644 platform/linux-generic/odp_queue_scalable.c > create mode 100644 platform/linux-generic/odp_schedule_scalable.c > create mode 100644 platform/linux-generic/odp_schedule_scalable_ordered.c > > -- > 2.13.1 >
