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Re[2]: Re[2]: Oracle on Compaq Alpha under TRU64

From: <dgoulet_at_vicr.com>
Date: Tue, 9 May 2000 09:59:47 -0400
Message-Id: <10492.105232@fatcity.com>


Frank,

    OK, your right I did not really provide you guys/gals with enough information to really work with. Therefore:

The Computer: Compaq ES40 I stand corrected it did have 500MHZ cpu's, 4 of them and 1GB of Ram. I'm not totally sure of the OS version, it was 4.x. The database version was 8.1.5.

The drives: This was a system that is used extensively for demonstration purposes & consequently they had "scrounged" disk space for us. Some of it was mirrored, some on a RAID system (level unknown), some stand alone drive(s) and some NFS mounted (although we did NOT put any DB files out there, just the export dump file).

We manually created the database with 100MB in system, 3x10Mb logs & 200 MB of rollback space for one segment before the import and only ran catalog.sql.

We then did a full database import of 200MB of data in 2 user accounts creating 6 additional tablespaces + having import create another 100MB of indexes.

To try and make things "apples vs. apples" I've did both systems using 2Kb database block size & 500 db_block_buffers in no archive log mode (just because that's the way the Compaq was setup, not my choice).

I know it's NOT optimal, but consistent performance with the same crappy setup would have been one heck of a plus for this machine & could have influenced us to use Alpha's vs. HP. I believe that the drives and their configuration were the problem. Anyone willing to go out on a limb & agree with me???

____________________Reply Separator____________________
Subject: Re: Re[2]: Oracle on Compaq Alpha under TRU64 Author: "Frank Evans" <evansf_at_ohsu.edu>
Date: 5/8/00 5:45 PM

What's your point. We have no idea of how much data is involved to do any kind of comparsion. We have no idea of the type file systems (RAID?,etc).

We have no idea of how many cpu's were in the Compaq box. The only thing we know is that that you are making random comparsions of HP to Compaq.

The ES40 which is a mid-range system comes with 500mhz or 667mhz cpu's. I do not
recall ES40 with 440mhz cpu's?

>>> dgoulet_at_vicr.com 5/8/00 7:44:22 AM >>>
Ok, I'm missing something here. To build and populate a database, from a full DB export, on the Compaq ES40 that we were demo'ing took in excess of 2 hours. Doing the same on an HP9000 N2000 class took only 45 minutes. I've got to go back to a very old HP9000 847 to get performance similar to the Compaq and at that the build/import time was a grand total of 1 hour & 55 minutes. Sure the Compaq is cheaper that the HP hardware, but for an application that has a design response goal of less than 5 minutes something here is dead wrong.

____________________Reply Separator____________________
Author: "Frank Evans" <evansf_at_ohsu.edu>
Date:       5/5/00 2:54 PM

Oracle on Compaq Tru64 (4100's and ES40's) in our evaluations and environment are extremly fast. More bang for the buck than HP, Sun etc.

thanks frank

>>> dgoulet_at_vicr.com 5/5/00 11:18:50 AM >>>
Hey Folks,

    The other day three of us from my company went down to a Compaq site to try out an Alpha 440MHZ machine with TRU64 as the OS. To put matters in a short sentence, performance was a joke at best. I'm rather inclined to believe it was the particular machine we were using as it is used for lots of demo work & is consequently a mess. Do any of you TRU64 users out there seeing the same performance???

Dick Goulet
Senior Oracle DBA
Vicor Corporation



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    Technicians & Engineers can never earn more than Managers. This is because:

Power = Work/Time
Knowledge = Power
Time = Money
therefore Knowledge = Work/Money
Solving for Money gives Money = Work/Knowledge Now as Knowledge decreases to 0, Money heads for infinity regardless of Work.

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Received on Tue May 09 2000 - 08:59:47 CDT

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