[opencms-dev] OpenCMS performance tuning

[Achim Westermann]

Hi,

12 MB of flex cache might be too small. If so constantly new entries 
will wipe out old entries in the cache which just causes overhead but 
not performance improvement. Also you should look out if you have used 
the "params" key for the cache property. This allows to put unlimited 
variations into the cache which will never be requested again. Have a 
look at the flex cache admin page and reload several times to see if you 
are hitting the max.

HTH,

Achim

On 05/28/2010 10:05 AM, Sandeep Murthy wrote:
> Hello,
>
> I have started to notice a particular pattern to our problem. On restarting the tomcat, the application is typically slow until I have clicked all the relevant pages to create a cache.. Once this happens the response time is very good BUT a few hours later, the application slows down totally which I fear is because of the cache expiration.
>
> Is this a flexcache configuration? And if so, where can I change it to not expire?? And is there any consequences to this action?
>
> Many thanks,
> sg
>
> -----Original Message-----
> From: opencms-dev-bounces at opencms.org [mailto:opencms-dev-bounces at opencms.org] On Behalf Of Shi Yusen
> Sent: quarta-feira, 26 de Maio de 2010 23:25
> To: The OpenCms mailing list
> Subject: Re: [opencms-dev] OpenCMS performance tuning
>
> http://mail.opencms.org/pipermail/opencms-dev/2008q1/029320.html
>
>
> 在 2010-05-26三的 23:13 +0100，Sandeep Murthy写道：
>> The http://opencms-wiki.org/Performance_Tuning_Example provides some tuning suggestions for MySQL but we are using Oracle 10g. Can anyone suggest what tuning can be done for Oracle?
>>
>> I just increased the heap size to 1500M and also the flexcache to 12Mb. The performance seemed to improved slightly but still leaves a lot to be desired.
>>
>> Appreciate any suggestions.
>>
>> Sg
>>
>> -----Original Message-----
>> From: opencms-dev-bounces at opencms.org [mailto:opencms-dev-bounces at opencms.org] On Behalf Of Sandeep Murthy
>> Sent: quarta-feira, 26 de Maio de 2010 17:24
>> To: The OpenCms mailing list
>> Subject: Re: [opencms-dev] OpenCMS performance tuning
>>
>> Basically this was setup almost an year back and now there are having problems with performance.. Currently the version cannot be upgraded, so I am trying to troubleshoot this..
>>
>> Thanks
>>
>> -----Original Message-----
>> From: opencms-dev-bounces at opencms.org [mailto:opencms-dev-bounces at opencms.org] On Behalf Of Andreas Kuckartz
>> Sent: quarta-feira, 26 de Maio de 2010 17:19
>> To: The OpenCms mailing list
>> Subject: Re: [opencms-dev] OpenCMS performance tuning
>>
>>> Tomcat: Versão 5.5
>>> OpenCMS: OpenCms 7.0.5
>>> Apache: 2.2.3
>>> Linux: Debian 4.0
>>> Java:  1.5
>>
>> Why did you install such old/obsolete versions ?!
>>
>> Andreas
>>
>>
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