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  1. D

    LSWS 4.2 + suEXEC = 50% performance decrease

    Yes, eaccelertor is installed. Selecting yes or no, gives around 200 requests a second on a wordpress installation, then selecting suEXEC brings it down to 100 req a second. However, just running it on a phpinfo() page, gives approximately the same result. So it could be the wordpress...
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    LSWS 4.2 + suEXEC = 50% performance decrease

    Hi, We just upgraded to 4.2 and followed the steps to enable suEXEC. On an AB benchmark we're seeing almost 50% less requests per second than if we set Run on start-up to no (or yes). Any ideas?
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    [solved] Peformance Bottleneck

    Ok found the issue. While the VM had a high net.ipv4.netfilter.ip_conntrack_max value, the dom0 xenserver didn't All the connections of the guests count against the max value of the dom0 server. Increased the limit by putting the following into /etc/sysctl.conf...
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    [solved] Peformance Bottleneck

    ok changed the content of the file, and it started using KA for php. Any ideas on how to overcome this 13,000 tcp connection limit for content that doesn't use a KA for whatever reason?
  5. D

    [solved] Peformance Bottleneck

    See above :) The only problem now is php files not using KAs for some reason.
  6. D

    [solved] Peformance Bottleneck

    Ok found the problem. If we turn smart keep alives off, it works like this: Server Software: LiteSpeed Server Hostname: ourtestserver Server Port: 2080 Document Path: /index.html Document Length: 59 bytes Concurrency Level: 10 Time...
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    [solved] Peformance Bottleneck

    Just a as control If we take out the -k and test on apache, we get the same thing. So two issues: 1) Why doesn't LSWS use KA for our index.html 2) How do i get round this 13,000 connection limit! :)
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    [solved] Peformance Bottleneck

    Well spotted!! ab -k -c 10 -t 60 http://ourtestserver:2080/youstudio/ images/joomla_green.gif This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam...
  9. D

    [solved] Peformance Bottleneck

    I've tried adding this: net.ipv4.tcp_fin_timeout = 15 net.ipv4.tcp_max_tw_buckets_ub = 50000 net.ipv4.tcp_tw_reuse = 1 to /etc/sysctl.conf and rebooted, but the problem is the same.
  10. D

    [solved] Peformance Bottleneck

    OK i think it's something to do with the number of connections that are in TIME_WAIT They seem to get to 13000 and then not allow any new TCP connections.
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    [solved] Peformance Bottleneck

    Hi, It's an 8 core, 4gb ram, Xen VM. Watched the error log and it reports nothing. Interestingly, if i run the lsws benchmark, i can't connect to apache straight away afterwards, which would suggest it's an OS limit, or something lsws imposes on the entire os?
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    [solved] Peformance Bottleneck

    This is one run straight afterwards This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking ourtestserver (be patient) Finished 16 requests...
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    [solved] Peformance Bottleneck

    Hi, New to LSWS, just trialing a copy out on cloudlinux/cpanel. All installed fine, just have a performance issue, so to speak. The problem is that we seem to be able to get a very high throughput for a short amount of time, and then the throughput drops to nothing. It seems to be after...
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