Re: [PATCH RFC] ipc/mqueue: introduce msg cache

[Thorsten Leemhuis]

On 20.12.22 19:48, Roman Gushchin wrote:
> Sven Luther reported a regression in the posix message queues
> performance caused by switching to the per-object tracking of
> slab objects introduced by patch series ending with the
> commit 10befea91b61 ("mm: memcg/slab: use a single set of kmem_caches for all
> allocations").
> [...]

Thx for looking into this

> The last line reflects the result with this patch ("6.1-rc8+p").
> 
> [1]: https://lore.kernel.org/linux-mm/Y46lqCToUa%2FBgt%2Fc@P9FQF9L96D/T/

This link...

> Reported-by: Sven Luther <Sven.Luther@xxxxxxxxxxxxx>

...should be here and look like this, as tools like regzbot otherwise
won't do the right thing:

Link: https://lore.kernel.org/linux-mm/Y46lqCToUa%2FBgt%2Fc@P9FQF9L96D/ [1]

For details, see:
https://lore.kernel.org/all/CAHk-=wjMmSZzMJ3Xnskdg4+GGz=5p5p+GSYyFBTh0f-DgvdBWg@xxxxxxxxxxxxxx/
https://lore.kernel.org/all/CAHk-=wgs38ZrfPvy=nOwVkVzjpM3VFU1zobP37Fwd_h9iAD5JQ@xxxxxxxxxxxxxx/
https://lore.kernel.org/all/CAHk-=wjxzafG-=J8oT30s7upn4RhBs6TX-uVFZ5rME+L5_DoJA@xxxxxxxxxxxxxx/
Documentation/process/submitting-patches.rst
(http://docs.kernel.org/process/submitting-patches.html)
Documentation/process/5.Posting.rst
(https://docs.kernel.org/process/5.Posting.html)

> Tested-by: Sven Luther <Sven.Luther@xxxxxxxxxxxxx>
> Signed-off-by: Roman Gushchin <roman.gushchin@xxxxxxxxx>

#regzbot ^backmonitor:
https://lore.kernel.org/linux-mm/Y46lqCToUa%2FBgt%2Fc@P9FQF9L96D/

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.