[Zope-dev] Zope Caches

Brian R Brinegar brinegar@ecn.purdue.edu
Thu, 21 Nov 2002 16:43:40 -0500 (EST)


We have diskless ZEO clients (Netboot). There is really no reason for our
ZEO clients to write their caches to the disk (RAM Disk). Can we turn this
off? To free up RAM for the other caches?

Thanks,
-Brian

On Thu, 21 Nov 2002, Shane Hathaway wrote:

> Brian R Brinegar wrote:
> > Not RAM Cache managers, but Database caches.
>
> In that case we still haven't narrowed it down. :-)  You have 12
> in-memory ZODB caches (they can't be shared) and 3 on-disk ZEO caches.
> Depending on your site, the ZODB cache can consume a lot of RAM, so Zope
> 2.6 has a database activity graph to help you tune the ZODB cache size.
>
> Shane
>
> > On Thu, 21 Nov 2002, Shane Hathaway wrote:
> >
> >
> >>Brian R Brinegar wrote:
> >>
> >>>Okay,
> >>>
> >>>I'm trying to better understand Caching within Zope. Is a cache created
> >>>for each Zope Thread? Or one per Zope instance?
> >>>
> >>>We have 3 ZEO Clients with 4 Threads each. I want to know if we have 3
> >>>copies of the cache, or 12 copies of the cache.
> >>
> >>If you're talking about RAMCacheManager, you have 3 caches.  It
> >>carefully shares among threads.
> >>
> >>Shane
> >>
> >
>
>