Re: [PATCH 1/2] sched_ext: change the variable name for slice refill event

From: Honglei Wang
Date: Thu Apr 17 2025 - 22:22:56 EST


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@xxxxxxx>
>> ---
>> 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