Can't find 1.4.16 at http://haproxy.1wt.eu/download/1.4/src/ ?
Bests, -Igor 2011/6/9 Hervé COMMOWICK <hcommow...@exosec.fr>: > Hello Matt, > > You need to activate logging to see what occurs to your requests, you > can use "halog" tool (in the contrib folder) to filter out fast > requests. > > Other things you can enable to reduce latency is : > option tcp-smart-accept > option tcp-smart-connect > > and finally you can test : > option splice-response > But this one will be dependent of your kind of traffic. > > next release 1.4.16 have some improvements in latency > (http://www.mail-archive.com/haproxy@formilux.org/msg05080.html), i > think you can give it a try, take the daily snapshot for this. > > Regards, > > Hervé. > > On Wed, 8 Jun 2011 23:57:38 -0700 > Matt Christiansen <ad...@nikore.net> wrote: > >> Hello, >> >> I am wanting to move to HAProxy for my load balancing solution. Over >> all I have been greatly impressed with it. It has way more throughput >> and can handle way more connections then our current LB Solution >> (nginx). I have been noticing one issue in all of our tests though, it >> seems like in the TP99.9 (and greater) of response times is much MUCH >> higher then nginx and we have a lot of outliers. >> >> Our test makes a call to the VIP and times the time it takes to >> receive the data back then pauses for a sec or two and makes the next >> response. In both of the sample results below I did 2000 requests. >> >> HAProxy >> >> Average: 39.71128451818 >> Median: 29.4217891182 >> tp90: 67.48199012481 >> tp99: 313.29083442688 >> tp99.9: 562.318801879883 >> Over 500ms: 10 >> Over 2000ms: 0 >> >> nginx >> >> Average: 69.6072148084641 >> Median: 59.2541694641113 >> tp90: 87.6350402832031 >> tp99: 112.42142221222 >> tp99.9: 180.88918274272 >> Over 500ms: 0 >> Over 2000ms: 0 >> >> So as you can see a big difference in the TP99.9 and a big difference >> in the outlier count but the average and median response time are >> really low. >> >> We are running a pretty stock centos 5.6 server install with HAProxy >> 1.4.15, HAProxy isn't using more then like 4% of the CPU and the >> System CPU is closer to 12%. >> >> I was wondering if you guys had any obvious response time related >> performance tweaks I can try. If you need more info let me know too. >> >> Thanks, >> Matt C. >> > > > > -- > Hervé COMMOWICK, EXOSEC (http://www.exosec.fr/) > ZAC des Metz - 3 Rue du petit robinson - 78350 JOUY EN JOSAS > Tel: +33 1 30 67 60 65 - Fax: +33 1 75 43 40 70 > mailto:hcommow...@exosec.fr > >
