Messages in this thread | | | Date | Wed, 8 Jul 1998 17:06:11 +1200 | From | Chris Wedgwood <> | Subject | Re: File-descriptors - large quantities |
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On Wed, Jul 08, 1998 at 02:51:08PM +1000, Dancer wrote:
> My predecessor hopped on the linux 2.1.xx bandwagon (2.1.89-96 IIRC), > which caused us enormous loss-of-face, as the production servers, hung, > rebooted, or crashed in front of everyone. I don't think we can afford > to chance _that_ again.
'nuf said.
> > All this assume, select(2) will suck for 12k FDs, which I've not tested. > > Well, it doesn't suck badly enough to hurt for 3K. So, assuming we get > four times the suckiness for 6K, we might still be cool.
Hmm... is it possible to profile the kernel one of the running squids for a day or so and see how long it spends in select?
If your not CPU bound, then it might be OK.
> Aside from basic suck, you can't think of any related problems?
Provided the kernel stack doesn't get trashed and libc is tweaked appropriately, then I guess it should work.
As far as sucky performance goes, I'll see if I can get something with 12k FDs timing select(2) vs poll(2) later tonight.
-Chris
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