| Message ID | 1411488485-10025-7-git-send-email-vincent.guittot@linaro.org |
|---|---|
| State | New |
| Headers | show |
On 09/23/2014 09:38 PM, Vincent Guittot wrote: > add the SD_PREFER_SIBLING flag for SMT level in order to ensure that > the scheduler will put at least 1 task per core. > > Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> > --- > kernel/sched/core.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index c7c8ac4..f72663e 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -6134,6 +6134,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) > */ > > if (sd->flags & SD_SHARE_CPUCAPACITY) { > + sd->flags |= SD_PREFER_SIBLING; > sd->imbalance_pct = 110; > sd->smt_gain = 1178; /* ~15% */ > Reviewed-by: Preeti U. Murthy <preeti@linux.vnet.ibm.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
On 24 September 2014 14:27, Preeti U Murthy <preeti@linux.vnet.ibm.com> wrote: > On 09/23/2014 09:38 PM, Vincent Guittot wrote: >> add the SD_PREFER_SIBLING flag for SMT level in order to ensure that >> the scheduler will put at least 1 task per core. >> >> Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> >> --- >> kernel/sched/core.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/kernel/sched/core.c b/kernel/sched/core.c >> index c7c8ac4..f72663e 100644 >> --- a/kernel/sched/core.c >> +++ b/kernel/sched/core.c >> @@ -6134,6 +6134,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) >> */ >> >> if (sd->flags & SD_SHARE_CPUCAPACITY) { >> + sd->flags |= SD_PREFER_SIBLING; >> sd->imbalance_pct = 110; >> sd->smt_gain = 1178; /* ~15% */ >> > Reviewed-by: Preeti U. Murthy <preeti@linux.vnet.ibm.com> Thanks > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c7c8ac4..f72663e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6134,6 +6134,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) */ if (sd->flags & SD_SHARE_CPUCAPACITY) { + sd->flags |= SD_PREFER_SIBLING; sd->imbalance_pct = 110; sd->smt_gain = 1178; /* ~15% */
add the SD_PREFER_SIBLING flag for SMT level in order to ensure that the scheduler will put at least 1 task per core. Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> --- kernel/sched/core.c | 1 + 1 file changed, 1 insertion(+)