I have a database server that is being replaced and just for the hell of it ran phoronix on the old one to compare to the new one and don't see the increase in the performance one might expect. The system details and test results are in the attached image, but highlights are:
Old-
Xeon E5640 @2.67GHz X 4 cores
384GB RAM
RHEL 5.5 (2.6.18 kernel)
New-
Xeon E5-4650 @2.7GHz X 64 cores
1TB RAM
OEL 6.4 (2.6.39 kernel)
In particular, the RAMspeed tests indicate degraded performance on the new system, and even in the tests that are better, the results aren't exponentially better. The old system is booting from local disk, db is on SAN. New system is booting from SAN, db on san, /tmp is tmpfs in RAM.
I know the real test will be when the db is loaded and tested, but just basic benchmark tests are not showing spectacular improvements.
Old-
Xeon E5640 @2.67GHz X 4 cores
384GB RAM
RHEL 5.5 (2.6.18 kernel)
New-
Xeon E5-4650 @2.7GHz X 64 cores
1TB RAM
OEL 6.4 (2.6.39 kernel)
In particular, the RAMspeed tests indicate degraded performance on the new system, and even in the tests that are better, the results aren't exponentially better. The old system is booting from local disk, db is on SAN. New system is booting from SAN, db on san, /tmp is tmpfs in RAM.
I know the real test will be when the db is loaded and tested, but just basic benchmark tests are not showing spectacular improvements.
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