Hi,
Thanks for the response.
Bill Moran wrote:
In response to David Brain <dbrain@xxxxxxxxxxxxx>:
I recently migrated one of our large (multi-hundred GB) dbs from an
Intel 32bit platform (Dell 1650 - running 8.1.3) to a 64bit platform
(Dell 1950 - running 8.1.5). However I am not seeing the performance
gains I would expect
What were you expecting? It's possible that your expectations are
unreasonable.
Possibly - but there is a fair step up hardware performance wise from a
1650 (Dual 1.4 Ghz PIII with U160 SCSI) to a 1950 (Dual, Dual Core 2.3
Ghz Xeons with SAS) - so I wasn't necessarily expecting much from the
32->64 transition (except maybe the option to go > 4GB easily - although
currently we only have 4GB in the box), but was from the hardware
standpoint.
I am curious as to why 'top' gives such different output on the two
systems - the datasets are large and so I know I benefit from having
high shared_buffers and effective_cache_size settings.
Provide more information, for one thing. I'm assuming from the top output
that this is some version of Linux, but more details on that are liable
to elicit more helpful feedback.
Yes the OS is Linux - on the 1650 version 2.6.14, on the 1950 version 2.6.18
Thanks,
David.
--
David Brain - bandwidth.com
dbrain@xxxxxxxxxxxxx
919.297.1078
