Re: [PATCH v3] mm/lruvec: trace LRU add drains and drain-all requests

[David Hildenbrand (Arm)]

On 6/18/26 10:30, Vlastimil Babka (SUSE) wrote:
> On 6/18/26 10:21, David Hildenbrand (Arm) wrote:
>> On 6/17/26 20:18, Vlastimil Babka (SUSE) wrote:
>>>
>>> Yeah and I don't recall ever that a change to a mm tracepoint would ever
>>> break someone who'd complain and we'd have to revert it.
>> Really? :)
>>
>> Read the context of the link I posted once more.
> 
> Ah, I see. I've only read the single mail from Steven that referred to the
> old powertop breakage and didn't notice the context.
> 
> But I don't think these worries should stop us from adding easily usable
> tracepoints.

Steve explained a way how apparently scheduler people are handling it without
trace events.

You can always remove/modify tracepoints, but not trace events.

Anyhow, just wanted to mention it, because so far MM didn't rally know about
this implication.

-- 
Cheers,

David