Hi Roché, I can see your funkload profile?
On Sun, Oct 26, 2008 at 3:43 PM, Roché Compaan <[EMAIL PROTECTED]>wrote: > On Sat, 2008-10-25 at 09:20 +0200, Hedley Roos wrote: > > > Have you measures the time needs for some "standard" ZCatalog queries > > > used with a Plone site with the communication overhead with memcached? > > > Generally spoken: I think the ZCatalog is in general fast. Queries > using a > > > fulltext index are known to be more expensive or if you have to deal > with > > > large resultsets or complex queries. > > > > > > > No I haven't. Roche Compaan has done extensive benchmarking using > > funkload testing plain catalog vs module level cache vs memcached, but > > the tests are more about page serving than catalog query time. I'll > > ask him to comment more on that. > > I actually did some profiling as well and catalog searches were just too > damn slow. The average execution time for searchResults was 100 > milliseconds and this is why I told Hedley we should do some caching at > query level in the first place. I experimented with this idea a couple > of years back but wasn't successful due to inexperience. I was trying to > cache brains which obviously leads to persistency bugs. This time around > it was obvious to me that we should cache the IISet result sets. > > I suspect specific indexes are just performing suboptimally and needs to > be improved. ExtendPathIndex in Plone seems to be one of them. > > The effect on performance is really awesome, now we just need to fine > tune the implementation. > > -- > Roché Compaan > Upfront Systems http://www.upfrontsystems.co.za > > _______________________________________________ > Zope-Dev maillist - Zope-Dev@zope.org > http://mail.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope ) > -- Fábio Rizzo Matos ThreePointsWeb [EMAIL PROTECTED] http://www.threepointsweb.com +55 61 3202-6480 Python, Zope e Plone com quem entende do assunto!
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