On Tue, 27 Sep 2016 11:37:24 +0000
David Laight <David.Laight@xxxxxxxxxx> wrote:
From: Nicholas Piggin
> Sent: 27 September 2016 12:25
> On Tue, 27 Sep 2016 10:44:04 +0200
> Vlastimil Babka <vbabka@xxxxxxx> wrote:
> What's your customer doing with those selects? If they care at all about
> performance, I doubt they want select to attempt order-4 allocations, fail,
> then use vmalloc :)
If they care about performance they shouldn't be passing select() lists that
are anywhere near that large.
If the number of actual fd is small - use poll().
Right. Presumably it's some old app they're still using, no?