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Xeon renders VERY slow…..
Just wondering if somebody might know whats going on.
Running AE 5.5.1 on a 2.6ghz dual Xeon with 1gb ram.
also
Running AE 5.5.1 on a 2.5ghz Pentium 4 with 512 ram.
I have a simple 720×486 scene with a solid and the lightning effect.
The Pentium 4 renders the whole thing in less than a minute.
The Dual Xeon renders the whole thing in 6 minutes.
Does anybody have a clue why this is so slow on the Xeon?
The Xeon has twice as much ram.
The P4 had a front side bus of 533mhz.
The Xeon has a front side bus of 100mhz. (its an older Dell workstation)
I find it VERY Difficult to believe (I’m a certified pc tech btw) that
a mere 433mhz less of memory speed would slow this thing to a crawl like that.Other apps seem to run at the same speed.
Is there possibly some Xeon bug with 5.5.1?
any suggestions welcomed.
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2 Replies
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[Borjis] “I find it VERY Difficult to believe (I’m a certified pc tech btw) that
a mere 433mhz less of memory speed would slow this thing to a crawl like that.”Well… considering that your Xeon system has only 20% of the memory bandwidth of the P4 system, you’d better believe it.
This means that the data can’t be transferred to the CPU fast enough. Your Xeons are sitting idle most of the time, waiting for instructions.
For a fast AE system you really want a fast system bus, with very fast RAM. DDR2 preferably.
Bar3nd
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A friend of mine engineers at intel and told me the Xeon is
in fact 400mhz, split into 200mhz for each cpu on the front side bus.so its only 66mhz slower than the amd which runs 2 independant 266mhz
front side buses.I found an article by Rick Gerard. he had the same problem. It was the IDE Drive controller.
These units ship with 15,000 rpm hard drives and thats what your supposed to use with them.
AFter running some software benchmarks, the XEON was only slightly slower (less than 10% on most tests) than my pentium 4.
But on the disk read/write tests the P4 beat the Xeon by 60%…..Bottle Neck found! 15k rpm drive on the way! 🙂
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