On Sat, Feb 25, 2017 at 11:56 PM, Slawa Olhovchenkov <s...@zxy.spb.ru> wrote: > On Sat, Feb 25, 2017 at 11:09:29PM +0800, Sepherosa Ziehau wrote: > >> > Can I use per-connection Lua script (for delays and url generation)? >> > Not per-thread. I am need to emulate many client connections (about >> > 10K-40K). >> > Currently I am have some trouble w/ >20K connections. >> >> I didn't try the Lua script. Make sure to low the MSL on the box >> running wrk, e.g. 10ms. Well, I'd recommend you to run 15K concurrent >> connections on one testing box. > > Thanks! > Can you explain some more this recomendations?
If you don't lower MSL, too many sockets will sit in TIMED_WAIT state on the testing client, which consumes local port space. Local port space depletion == wrk can do more requests. 15K concurrent connection on each client box is a heuristic to make sure local ports can be recycled timely. You need to figure out your value on the testing box. But, normally, 15K ~ 10K is doable on each client machine for a given server. > > PS: I am run wrk w/ '--connreqs 600' Well, nginx's default setting is 100 requests/connection :). I use --connreqs 1 to generate "short-lived" connection bomb. Thanks, sephe -- Tomorrow Will Never Die _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
