System can't take more than 5k req /sec
perbu at varnish-software.com
Thu May 15 15:30:48 CEST 2014
Those are probably fine on a LAN for benchmarking but they will not work on
On Tue, May 13, 2014 at 3:31 PM, Jason Price <japrice at gmail.com> wrote:
> Private message requesting TCP tuning. For the record, these are
> draft numbers and very tightly tied to our use case, so they should
> not be copied blindly.
> somaxconn is 512
> txqueuelen is 5000
> netdev_max_backlog is 5000
> tcp_max_syn_backlog is 4096
> enable tcp_tw_recycle
> enable tcp_tw_reuse
> On Tue, May 13, 2014 at 6:45 AM, Γιάννης Καραγιαννίδης
> <gkaragiannidis at dolnet.gr> wrote:
> > Could you please give us some more information about your
> > TCP tuning?
> > Regards
> > Yiannis
> > -----Original Message-----
> > From: varnish-misc-bounces+gkaragiannidis=dolnet.gr at varnish-cache.org[mailto:
> varnish-misc-bounces+gkaragiannidis=dolnet.gr at varnish-cache.org] On
> Behalf Of Jason Price
> > Sent: Tuesday, May 13, 2014 12:33 AM
> > To: Norberto Meijome
> > Cc: varnish-misc at varnish-cache.org
> > Subject: Re: System can't take more than 5k req /sec
> > So, through some TCP tuning we've been able to get to 20k/s. Though I
> needed to get up to 8k threads per pool.
> > Many docs say 'Don't go more than 4k threads'. Can someone explain
> that? Anyone have experience with 8-10k threads?
> > --Jason
> > On Tue, Apr 29, 2014 at 10:41 PM, Jason Price <japrice at gmail.com> wrote:
> >> On Tuesday, April 29, 2014, Norberto Meijome <numard at gmail.com> wrote:
> >>> Have you ruled out AWS limits? Putting varnish aside for a minute,
> >>> can you handle 5k/sec TCP conns with something like nginx +static
> >> This is an excellent question. I'll see what kind of answer I'll get
> to it.
> >> -Jason
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<http://www.varnish-software.com/> *Per Buer*
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