Hi, In the past using ec2 instances on Amazon I have been able to get around the 3k requests per second before ATS becomes unresponsive (memory/cpu/hd usage looked healthy still). The assumption here being the that the origin servers are not congested.
Worth keeping in mind that the effective rate you can push requests through can drop significantly further if your origin servers become slower to respond so its worth monitoring both at the same time when you test (as well as comparing performance with physical server). Mav From: "Linux-it.es" <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Fri, 13 Apr 2012 07:23:03 +0100 To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Cc: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: ATS concurrence Yes it is!!! Jorge Roman Novalbos [email protected]<mailto:[email protected]> 679 99 08 62 http://www.servotic.com On 13/04/2012, at 07:00, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> wrote: Is this a virtual machine? -------- Original Message -------- From: Jorge Román Novalbos Sent: Thu, Apr 12, 2012 21:18 To: [email protected]<mailto:[email protected]> CC: Subject: ATS concurrence Hi everyone!! I'm configuring a new ATS machine that it gonna server a lot request per second (around 10000). I have done several benchmark with ab from different machine to achieve more concurrence but I can't get more than 3000 request per second. I have set several params in order to improve the performance: echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse echo "10" > /proc/sys/net/ipv4/tcp_fin_timeout echo "10240" > /proc/sys/net/core/somaxconn Besides, I have increased max open file allowed for nobody user to 16384 (User that run ATS) In the client side always get the same error : apr_socket_recv: Connection timed out (110) This is the ab command: ab -c 600 -t 60 ''http://172.20.10.11/test.php"; I have increased the limit to 5000 in client side too. Anybody knows how i can retrieve more concurrence in my server?????? Thanks in advance!!! Jorge
