On 25 Jan 2006, at 10:42, Alexander Limi wrote:
On Wed, 25 Jan 2006 00:11:04 -0800, Dario Lopez-Kästen <dario@ita.chalmers.se> wrote:
Start by checking the ZODB cache numbers in the zope-conf file (too start simple). IIRC, the default is 5000 objects. Increase that to, say 50.000 or so (you mention that you have a busy site).
Sorry, but this is not good advice. 5000 objects in the cache is normally plenty, and you should look into caching the front-end before you even consider this. 50K objects in the cache will eat *a lot* of memory, and most likely cause swapping.
Cache properly with Apache or Squid in front first, then investigate the more complex settings.
Yes, just saying "change the setting to X" is definitely not good advice. But when it comes to twiddling knobs I would work from the bottom up instead of the other way around, meaning optimize the settings you have in Zope first. Even if you know you will use a cache you will want to make sure the backend is tuned properly. jens