Messages in this thread | | | From | Jeff Moyer <> | Subject | Re: aio: questions with ioctx_alloc() and large num_possible_cpus() | Date | Fri, 28 Oct 2016 14:59:40 -0400 |
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Benjamin LaHaise <bcrl@kvack.org> writes:
> Today's high end systems are tomorrow's desktops... It probably makes
Well, to some degree I agree with you. >100 processor high end systems have been around for a long time, but we still don't have those on the desktop. ;-)
> sense to implement per-user limits rather than the current global limit, > and maybe even convert them to an rlimit to better fit in with the > available frameworks for managing these things.
I actually wrote a patch to do this back in 2007: http://www.gossamer-threads.com/lists/linux/kernel/1043934
It used the mlock rlimit. I ultimately decided to rescind it, since there were years of experience with the current tunable, and plenty of documentation on it, too. We could put aio-max-nr on the deprecated path, though, if folks want to go that route. Let me know and I can investigate resurrecting that patch. Though I would like input on whether a new rlimit is desired.
Cheers, Jeff
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