lkml.org 
[lkml]   [2018]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v9 7/7] cpuset: Allow reporting of sched domain generation info
    Date
    This patch enables us to report sched domain generation information.

    If DYNAMIC_DEBUG is enabled, issuing the following command

    echo "file cpuset.c +p" > /sys/kernel/debug/dynamic_debug/control

    and setting loglevel to 8 will allow the kernel to show what scheduling
    domain changes are being made.

    Signed-off-by: Waiman Long <longman@redhat.com>
    ---
    kernel/cgroup/cpuset.c | 6 ++++++
    1 file changed, 6 insertions(+)

    diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
    index 9513f90..71fb2d0 100644
    --- a/kernel/cgroup/cpuset.c
    +++ b/kernel/cgroup/cpuset.c
    @@ -820,6 +820,12 @@ static int generate_sched_domains(cpumask_var_t **domains,
    }
    BUG_ON(nslot != ndoms);

    +#ifdef CONFIG_DEBUG_KERNEL
    + for (i = 0; i < ndoms; i++)
    + pr_debug("generate_sched_domains dom %d: %*pbl\n", i,
    + cpumask_pr_args(doms[i]));
    +#endif
    +
    done:
    kfree(csa);

    --
    1.8.3.1
    \
     
     \ /
      Last update: 2018-05-29 15:43    [W:2.893 / U:0.172 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site