Well, Pentium-class 233 MHZ machine with 128MB, IDE disk: It's not a fast machine, but zope runs ok on it. Here are some benchmarks (ab -n 100 -c 5) Zope homepage: Requests per second: 5.86 [#/sec] (mean) Time per request: 852.95 [ms] (mean) CMFSite homepage: Requests per second: 1.01 [#/sec] (mean) Time per request: 4967.70 [ms] (mean) Plone Homepage: Requests per second: 0.23 [#/sec] (mean) Time per request: 21858.70 [ms] (mean) Zope itself can do almost 6 req/second on this machine. CMFSite goes down to 1 req/sec. I am told this is due to ZPT. After Plone installation, zope restart takes a full 7 minutes! Running plone.setup takes 368 seconds Plone makes Zope 25 times as slow. Even unbearably so on this hardware. On another machine (Dual 1GHz, 1GByte RAM, SCSI RAID-1) Zope homepage: Requests per second: 84.60 [#/sec] (mean) Time per request: 59.10 [ms] (mean) CMFSite Homepage: Requests per second: 17.13 [#/sec] (mean) Time per request: 291.90 [ms] (mean) After Plone install zope restart takes 15 seconds Running Plone setup takes 20 seconds Plone Homepage: Requests per second: 3.99 [#/sec] (mean) Time per request: 1253.65 [ms] (mean) Plone makes Zope 21 time as slow on this machine Even a fast dual pentium machine can only serve 4 (relatively simple) Plone requests per second. I think this will be a showstoper for actual deployment in many cases. Regards, Ron Arts