There are more than the string that may cause some bottleneck. IBM
published a white paper last time about making a good java prog (i forgot
exactly where it is, but if you go to the developer site from IBM, there
should be a link. If you cannot find it send me an email directly as I
don't check this mailing list regularly and I will try to find/send you a
copy of it)
Just quick question ( i think this is more for response time, rather than
the memory usage), did you cache the initial context and the datasource --
these are part of the information from that whitepaper)?
At 07:05 AM 9/25/01, you wrote:
>hello all,
>
>we build a application with jsp/servlets. the site makes heavy use of the
>database through jdbc datasources, that are bound to a jndi context, so
>the db shouldn't be a bottleleck. We're using the webserver resin from
>caucho tech. the web traffic is not so big (less than 20'000 pageviews per
>day). The OS is FreeBSD4.2 on a P-III900/512ram.
>
> From time to time the (1-5 days) site is slowing down and with 'top' i
> see that the java-process(webserver) is taking more than 98% of the CPU.
> And there is no free memory left. Restart the webserver is the only
> possibilty to get all things work normal.
>
>It worked better when i replaced all strings with StringBuffers /
>append(). But the problem is still not solved.
>
>Are there any other hints / tips to speed up our application and use the
>server memory more efficient.
>
>- should I use scriptles/html in the jsp pages or try to write all the
>html-code directly to the JspWriter?
>- any other ideas?
>
>thanks for any help.
>
>regards,
>reto
>
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