Hello,
We're experiencing high CPU loads on our mail server, all caused by Roundcube processes. Anyone else experiencing problems like this?
Thank you.
I think you must detail which processes make high loads, and also detail versions of mail server, php, apache, etc.
It may be an apache or php issue.
Regards,
Victor.
On 6/28/07, Diana Ventimiglia diana_ventimiglia@volusion.com wrote:
Hello,
We're experiencing high CPU loads on our mail server, all caused by Roundcube processes. Anyone else experiencing problems like this?
Thank you.
Sorry I wasn't more descriptive before. We are running PHP 5, apache 2 and Redhat Linux EL4 with dual Xeon 3.0 CPU, and 4 GB of RAM.
Go PHP5! A community movement to drop PHP4 support
http://www.hiveminds.co.uk/node/3409
Thought it might be an interesting read for anyone who hasn't seen it yet as it was a recent topic.
I'm on board. Since our existing platform works perfectly in php4 I don't feel like we're abandoning anyone either.
Matt
Diana Ventimiglia wrote:
Sorry I wasn’t more descriptive before. We are running PHP 5, apache 2 and Redhat Linux EL4 with dual Xeon 3.0 CPU, and 4 GB of RAM.
I have heard reports of people getting 100% CPU from their IMAP daemon having an incorrectly configured authentication mechanism, typically with login failures. Also, when loading large folders or messages, it is typically the IMAP daemon chewing up the CPU time and not the httpd process.
I haven't seen 100% CPU from normal RoundCube use, though. The closest I have come is when working with attachments (usually downloading).
The highest I have personally seen apache use is ~20% CPU on an old PIII-800 when using attachments. I have seen the IMAP daemon go >50% when loading or searching in a large folder (~3000 messages).
Have you watched the process list with top to see what process is actually using the most CPU time?
Jim
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Diana Ventimiglia -
Jim Pingle -
Matt Kaatman -
Víctor