[RCU] Recommendation Hardware for RoundCube
stan at hardwarefreak.com
Thu Sep 30 11:11:12 CEST 2010
hoannt at mail.ciid.cz.cc put forth on 9/30/2010 1:29 AM:
>> hoannt at mail.ciid.cz.cc put forth on 9/29/2010 11:22 PM:
>>> Here's my out put when running TOP or FREE:
>>> top - 11:16:52 up 2 days, 53 min, 2 users, load average: 0.00, 0.00,
>>> Tasks: 144 total, 1 running, 143 sleeping, 0 stopped, 0 zombie
>>> Cpu(s): 2.0%us, 0.3%sy, 0.0%ni, 97.7%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> Mem: 904020k total, 754172k used, 149848k free, 105632k buffers
>>> Swap: 2097144k total, 72k used, 2097072k free, 390776k cached
>>> [root at localhost ~]# free
>>> total used free shared buffers
>>> Mem: 904020 753852 150168 0 105784
>>> -/+ buffers/cache: 257248 646772
>>> Swap: 2097144 72 2097072
>> The Linux kernel heavily caches disk blocks. The bulk of your memory
>> usage is in buffers/cache as with most Linux systems. Execute the
>> following commands and look at the top row of the 'free' column.
>> $ echo 3 > /proc/sys/vm/drop_caches
>> $ free -m
>> Your system is not low on memory at this point. The kernel will drop
>> memory from the cache and free it for processes when the need arises.
>> If you add 100 concurrent users to RC, far more of your memory will be
>> consumed by processes and less by cache.
>> Again, your current slow RC response is due to something in the software
>> stack on the server, or more likely, the client PC. What are the specs
>> of the client PC hardware and software? This is relevant due to the
>> java processing on the client. If your client PC/OS/Browser is slow, it
>> won't matter how fast the server is responding.
> Thank you!
> I'm analyzing my software stack at this moment. I will update you the last
> result later.
> BRs/ Hoan.
It may speed this process up tremendously if you'd create a test account
and post the credentials on the RC list, along with the URL of the
server. With a few of us logging in and seeing first hand how it
performs, we may be able to narrow down the problem pretty quickly,
saving all of us a bit of time with all the back/forth emails.
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