Message-Id: <10736.126209@fatcity.com> From: "Mohan, Ross" Date: Tue, 9 Jan 2001 16:57:47 -0500 Subject: RE: Unix performance This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C07A87.33972150 Content-Type: text/plain; charset="iso-8859-1" you say kernel configuration....you include memory paging parameters, flush cycles, etc? Also, doubt this is it, but are the users and filesystems "identical" as well? including filesystem creation parameters? -----Original Message----- From: hp [mailto:hp@lechateau.ca] Sent: Tuesday, January 09, 2001 4:42 PM To: Multiple recipients of list ORACLE-L Subject: Unix performance I realize this is probably not the right palce for this put i have a puzzeling question We have recently purchased a second server with the exact same hardware as our production server and are currently in the process of performing performance tests. Both servers have exactly the same the hardware configuration and exactly the same software configuration ( kernel configuration, patch levels). and after running this simple loop that simply does a few basic mathmatic opertions, our production server does the loop in 40secs and our new server does the loop in 10secs. Does anyont konw what could cause such a drastic differnce in doing a simple math operation. and yes both tests were performed with no other users on the servers. this is the loop: cnt=1 while [ $cnt -lt 10000 ]; do let a=$cnt*785432/43243*7845+54 let cnt=$cnt+1 done -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: hp INET: hp@lechateau.ca Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). ------_=_NextPart_001_01C07A87.33972150 Content-Type: text/html; charset="iso-8859-1" RE: Unix performance

you say kernel configuration....you include
memory paging parameters, flush cycles, etc?

Also, doubt this is it, but are the users and
filesystems "identical" as well?  including
filesystem creation parameters?

-----Original Message-----
From: hp [mailto:hp@lechateau.ca]
Sent: Tuesday, January 09, 2001 4:42 PM
To: Multiple recipients of list ORACLE-L
Subject: Unix performance


I realize this is probably not the right palce for this put i have a
puzzeling question

We have recently purchased a second server with the exact same hardware as
our production server and are currently in the process of performing
performance tests. Both servers have exactly the same the hardware
configuration and exactly the same software configuration ( kernel
configuration, patch levels).

and after running this simple loop that simply does a few basic mathmatic
opertions, our production server does the loop in 40secs and our new server
does the loop in 10secs. Does anyont konw what could cause such a drastic
differnce in doing a simple math operation. and yes both tests were
performed with no other users on the servers.
this is the loop:

cnt=1
while [ $cnt -lt 10000 ]; do
let a=$cnt*785432/43243*7845+54
let cnt=$cnt+1
done
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: hp
  INET: hp@lechateau.ca

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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