From: Honglei Wang <jameshongleiwang@126.com>
To: Andrea Righi <arighi@nvidia.com>
Cc: tj@kernel.org, void@manifault.com, changwoo@igalia.com,
mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, joshdon@google.com, brho@google.com,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org
Subject: Re: [PATCH 1/2] sched_ext: change the variable name for slice refill event
Date: Fri, 18 Apr 2025 10:05:08 +0800 [thread overview]
Message-ID: <a247e016-494d-42a6-8f6a-2ff08366404b@126.com> (raw)
In-Reply-To: <aAFIvndKUQXm_ix5@gpd3>
Hi Andrea,
On 2025/4/18 02:30, Andrea Righi wrote:
> Hi Honglei,
>
> On Thu, Apr 17, 2025 at 04:07:07PM +0800, Honglei Wang wrote:
>> SCX_EV_ENQ_SLICE_DFL gives the impression that the event only occurs
>> when the tasks were enqueued, which seems not accurate. What it actually
>> means is the refilling with defalt slice, and this can occur either when
>> enqueue or pick_task. Let's change the variable to
>> SCX_EV_REFILL_SLICE_DFL.
>>
>> Signed-off-by: Honglei Wang <jameshongleiwang@126.com>
>> ---
>> kernel/sched/ext.c | 22 +++++++++++-----------
>> tools/sched_ext/scx_qmap.bpf.c | 4 ++--
>> 2 files changed, 13 insertions(+), 13 deletions(-)
>>
>> diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
>> index 66bcd40a28ca..594087ac4c9e 100644
>> --- a/kernel/sched/ext.c
>> +++ b/kernel/sched/ext.c
>> @@ -1517,10 +1517,10 @@ struct scx_event_stats {
>> s64 SCX_EV_ENQ_SKIP_MIGRATION_DISABLED;
>>
>> /*
>> - * The total number of tasks enqueued (or pick_task-ed) with a
>> - * default time slice (SCX_SLICE_DFL).
>> + * The total number of tasks slice refill with default time slice
>> + * (SCX_SLICE_DFL).
>
> Nit, how about:
>
> Total number of times a task's time slice was refilled with the default
> value (SCX_SLICE_DFL).
>
OK, will send a update later.
Thanks,
Honglei
> Thanks,
> -Andrea
next prev parent reply other threads:[~2025-04-18 2:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-17 8:07 [PATCH 0/2] rename var for slice refill event and add helper Honglei Wang
2025-04-17 8:07 ` [PATCH 1/2] sched_ext: change the variable name for slice refill event Honglei Wang
2025-04-17 18:30 ` Andrea Righi
2025-04-18 2:05 ` Honglei Wang [this message]
2025-04-17 8:07 ` [PATCH 2/2] sched_ext: add helper for refill task with default slice Honglei Wang
2025-04-17 17:32 ` [PATCH 0/2] rename var for slice refill event and add helper Tejun Heo
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