While we are on the subject of zope performance issues, are all you Zope people aware (I searched the mailing list and couldn't find mention of it) that some people in the Plone community (including myself) have taken to uncommenting a line in the AcceleratedHTTPCacheManager.py file of Zope 2.7 because it seems to hamper caching in proxy servers? I'm no expert so I don't know if this is a good "fix" or not (see http://www.vasudevaservice.com/documentation/articles/plone_speed for more details). My main concern is that we don't have to resort to this kind of hacking in the future and that an appropriate fix gets made in Zope. In my case, this change made an enormous difference when trying to speed up my Plone site and so far I haven't really seen any adverse effects. Any comments? -- Mike
-----Original Message----- From: zope-bounces@zope.org [mailto:zope-bounces@zope.org] On Behalf Of Paul Winkler Sent: Thursday, May 20, 2004 10:12 AM To: zope@zope.org Subject: Re: [Zope] zope performance issues
On Wed, May 19, 2004 at 07:49:43PM -0700, Trevor Warren wrote:
--- Dieter Maurer <dieter@handshake.de> wrote:
Per Second with RAMCacheManager on???.
Of course, this depends on how costly your rendering is... [snip]
The content is just 3 DTML pages with static html embedded in it. Nothing to fancy and no eye candy at all.
RamCacheManager objects i used to cache all images/dtml scripts. The statistics show that ONLY DTML scripts got cached and no images...why????.
Read the Help text for RAMCacheManager. This is expected behavior. See lib/python/Products/StandardCacheManagers/help/RAM.stx or just click teh "Help" button in the ZMI.
Ofcourse i would use a rever proxy/apache to do that caching but would appreciate some clarity on the same.
There was abso no increase in performance with RamCacheManager enabled for dtml scripts.
Not especially surprising since they weren't doing much work in the first place. At most you saved a little parsing time. RAMCacheManager is intended for things that are computationally expensive.
--
Paul Winkler http://www.slinkp.com
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