Messages in this thread | | | Subject | Re: aio: questions with ioctx_alloc() and large num_possible_cpus() | From | Mauricio Faria de Oliveira <> | Date | Wed, 5 Oct 2016 14:58:12 -0300 |
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Hi Benjamin,
On 10/05/2016 02:41 PM, Benjamin LaHaise wrote: > I'd suggest increasing the default limit by changing how it is calculated. > The current number came about 13 years ago when machines had orders of > magnitude less RAM than they do today.
Thanks for the suggestion.
Does the default also have implications other than memory usage? For example, concurrency/performance of as much aio contexts running, or if userspace could try to exploit some point with a larger number?
Wondering about it because it can be set based on num_possible_cpus(), but that might be really large on high-end systems.
Regards,
-- Mauricio Faria de Oliveira IBM Linux Technology Center
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