Re: ipc,sem: sysv semaphore scalability

[Emmanuel Benisty]

On Mon, Mar 25, 2013 at 12:10 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> And you never see this problem without Rik's patches?

No, never.

> Could you bisect
> *which* patch it starts with? Are the first four ones ok (the moving
> of the locking around, but without the fine-grained ones), for
> example?

With the first four patches only, I got some X server freeze (just tried once).

> Another thing to try might be to enable SLUB debugging (ie make sure that all of
>
>   CONFIG_SLUB_DEBUG=y
>   CONFIG_SLUB=y
>   CONFIG_SLUB_DEBUG_ON=y
>
> are set in your kernel config)

My bad, I forgot to enable this in my former build, sorry. Here's what
I get now:
http://i.imgur.com/G6H8KgD.jpg
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/