Johnny Hughes wrote:
On Thu, 2007-01-18 at 19:42 -0800, John R Pierce wrote:
IBM has a good reputation on Power and zSeries (not good for
CPU-intensive work, but disk I/O is in gigabytes/sec).
The Power 4+ CPUs are quite powerful.
A 4-way IBM pSeries 1.9Ghz outperformed a HP 4 way Opteron 2.4Ghz
running a specific computationally intense Oracle pl/sql workload we
benchmarked at work. The IBM was running AIX 5.3L, the Opteron RHEL 3
x86_64, both machines had at least 8GB ram (and weren't at all ram
constrained). (RHEL 4 on the same Opteron configuration was
slower!). Both systems were using 3 seperate 4 spindle raid10 on
fiberchannel for the oracle tablespaces, the disk IO rates was quite
high, almost exclusively writes, and not even close to a constraining
factor.
If anyone had one of these ppc64 blades available for donation to the
CentOS team for our ppc builder machine that would be most appreciated.
Johhny
Have you asked IBM for help here?
IBM does provide free help to folk wanting zSeries for projects such as
yours, you only need to ask.
--
Cheers
John
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