loading webmail interfaces really slow

stefanbc

• June 02, 2015 10:52

Hi, Some accounts have webmail enabled and can be accessed using is instant login successful takes 6-10 seconds loading hoarde is 12-15 seconds Note: the secure certificate is not valid, maybe buying a valid one will make it faster Thank you

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  cPanelMichael

  • June 03, 2015 13:06

  Hello, A signed SSL certificate is not likely to improve the load time. You mentioned this is a VPS. Is your provider able to temporarily increase the CPU/Memory available to your VPS so you can verify if it's why Horde and Roundcube are loading slower than you expect? Thank you.

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  stefanbc

  • June 03, 2015 15:08

  Looks like we need more RAM top " 10:45:06 up 19:56, 1 user, load average: 0.05, 0.02, 0.00 Tasks: 164 total, 1 running, 163 sleeping, 0 stopped, 0 zombie Cpu0 : 0.0%us, 0.0%sy, 0.0%ni, 98.0%id, 0.0%wa, 0.0%hi, 0.0%si, 2.0%st Cpu1 : 0.0%us, 0.0%sy, 0.0%ni, 97.5%id, 0.0%wa, 0.0%hi, 0.0%si, 2.5%st Mem: 2045172k total, 1990016k used, 55156k free, 43000k buffers Swap: 1048572k total, 232000k used, 816572k free, 1115744k cached

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  stefanbc

  • June 03, 2015 16:29

  So we doubled the RAM but it still takes 12 seconds from when I click Horde or RoundeCube until the interface is loaded. Logout takes 6 seconds. While I did the test I ran top and the CPUs are mostly 95% idle and RAM is Mem: 4043496k total, 1759904k used, 2283592k free, 25996k buffers While it feels faster I don't think RAM or CPU are the problem Any other ideas?

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  cPanelMichael

  • June 03, 2015 16:32

  Hello, What version of cPanel is installed on your system? Have you considered switching Roundcube to SQLite to see if you notice an improvement with performance?
  /usr/local/cpanel/scripts/convert_roundcube_mysql2sqlite
  Thank you.

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  stefanbc

  • June 03, 2015 16:34

  WHM 11.48.4 (build 4) I haven't considered switching(not sure I will), currently running on MariaDb 10

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  cPanelMichael

  • June 03, 2015 16:37

  I haven't considered switching(not sure I will), currently running on MariaDb 10

  
  You might see an improvement with load times by switching Roundcube to SQLite, as reported in previous threads. Thank you.

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  stefanbc

  • June 03, 2015 16:41

  Not sure it will help. I have both RoundCube and Horde running and they are both slow. RoundCube seems faster by 2 3 seconds. I think it's something else. Would changing RoundCube to sqllite break Horde?

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  cPanelMichael

  • June 03, 2015 16:47

  Would changing RoundCube to sqllite break Horde?

  
  No, it has no effect on Horde. However, note that Horde uses SQLite in cPanel version 11.50. Thank you.

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  stefanbc

  • June 04, 2015 18:11

  Does this have something to do with the amount of filtering done using whitelist/blacklist lists? Maybe there is a setting I can reduce the list. Or can I disable something to see if it makes a difference? Thank you

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  cPanelMichael

  • June 04, 2015 18:57

  Filter rules should not decrease the load time for your webmail applications. Typically, it's either a very large inbox, lack of CPU/Memory, or MySQL performance issues that result in webmail applications loading slowly. Thank you.

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  stefanbc

  • June 04, 2015 19:20

  Hi, The email account I test with has one email in it so I am not sure what it could be. Maybe MySQL because only half of the RAM is used and CPUs are 95% idle most of the time. I will try to see if MySQL is the problem, any ideas where to start?

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  cPanelMichael

  • June 04, 2015 19:41

  I will try to see if MySQL is the problem, any ideas where to start?

  
  There's really no downside to converting Roundcube to SQLite, however you may want to run a MySQL tuner and see if there are any performance suggestions. Thank you.

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