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    SubjectRe: [PATCH 0/8] workqueue: advance concurrency management
    From
    Ping.

    On Mon, Apr 15, 2013 at 12:41 AM, Lai Jiangshan <laijs@cn.fujitsu.com> wrote:
    > I found the early-increasing nr_running in wq_worker_waking_up() is useless
    > in many cases. it tries to avoid waking up idle workers for pending work item.
    > but delay increasing nr_running does not increase waking up idle workers.
    >
    > so we delay increasing and remove wq_worker_waking_up() and ...
    >
    > enjoy a simpler concurrency management.
    >
    > Lai Jiangshan (8):
    > workqueue: remove @cpu from wq_worker_sleeping()
    > workqueue: use create_and_start_worker() in manage_workers()
    > workqueue: remove cpu_intensive from process_one_work()
    > workqueue: quit cm mode when sleeping
    > workqueue: remove disabled wq_worker_waking_up()
    > workqueue: make nr_running non-atomic
    > workqueue: move worker->flags up
    > workqueue: rename ->nr_running to ->nr_cm_workers
    >
    > kernel/sched/core.c | 6 +-
    > kernel/workqueue.c | 234 +++++++++++++++---------------------------
    > kernel/workqueue_internal.h | 9 +-
    > 3 files changed, 89 insertions(+), 160 deletions(-)
    >
    > --
    > 1.7.7.6
    >
    > --
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