I've been working with a few installations with less than
stellar performance. Seems like NFS under linux is a culprit.
As well as VM and it's 2GB constraints.
This site set a new world record at 300,000 diagnoses
per second per processor. Look at the first report at
the system overhead as file backups start. And on the
next report at the diagnose rate. System pretty much
not doing anything but SpinLocks related to 2GB
constraints.
If other installations are seeing
high diagnose rates, please contact me. The monitor
does not provide details on which diagnose is the culprit,
but it is very likely DIAG44. and the monitor does not
say which user is causing the problem, but there are
some indicators, and some temporary solutions i would like
to have somebody test. Your performance could only improve....
Report: ESACPUU CPU Utilization Report
Monitor initialized: on 2084 serial
---------------------------------------------------------
<----Load----> <-----CPU (percentages)----->
<-Users-> Tran Total Emul User Sys Idle
Time Actv In Q /sec CPU util time ovrhd ovrhd time
-------- ---- ---- ---- - ----- ----- ----- ----- -----
05/10/04
---------------------------------------------------------
01:00:00 28 35.2 0.7 0 13.7 8.6 3.1 2.0 85.8
1 13.9 9.1 2.9 1.9 85.7
----- ----- ----- ----- -----
System: 27.7 17.7 6.0 3.9 171.5
---------------------------------------------------------
01:33:03 28 35.7 0.9 0 97.9 43.7 33.9 20.3 0.5
1 91.9 41.5 31.0 19.4 0.3
----- ----- ----- ----- -----
System: 196.0 87.6 67.3 41.2 0.8
Report: ESACPUA CPU Utilization Analysis
Monitor initialized: on 2084 serial 3667F
-------------------------------------------------------------------
<----Load---> <CPU percents><--Internal (per second)-->
<-Usrs-> Tran Totl Ovrhead Diag Inst SIE Fast Page
Time Actv InQ /sec CPU Util Usr Sys nose Sim intrcp path fault
-------- ---- --- ---- --- ---- --- --- ---- ---- ------ ---- -----
05/10/04
-------------------------------------------------------------------
00:45:00 28 36 0.7 0 8.8 0.8 0.7 86.6 353 2173.7 349 0.0
1 8.3 0.8 0.5 109 395 2326.3 395 0.1
---- --- --- ---- ---- ------ ---- -----
System: 17.1 1.6 1.2 196 749 4500.0 744 0.1
-------------------------------------------------------------------
01:00:00 28 35 0.7 0 13.7 3.1 2.0 23K 23K 24760 388 3.7
1 13.9 2.9 1.9 22K 23K 24508 256 3.1
---- --- --- ---- ---- ------ ---- -----
System: 27.7 6.0 3.9 45K 46K 49268 643 6.8
-------------------------------------------------------------------
01:33:03 28 36 0.9 0 97.9 34 20 330K 331K 332265 406 84.4
1 91.9 31 19 313K 314K 314612 306 65.9
---- --- --- ---- ---- ------ ---- -----
System: 196 67 41 644K 645K 670035 723 153.5
"If you can't measure it, I'm Just NOT interested!"(tm)
/************************************************************/
Barton Robinson - CBW Internet: [EMAIL PROTECTED]
Velocity Software, Inc Mailing Address:
196-D Castro Street P.O. Box 390640
Mountain View, CA 94041 Mountain View, CA 94039-0640
VM Performance Hotline: 650-964-8867
Fax: 650-964-9012 Web Page: WWW.VELOCITY-SOFTWARE.COM
/************************************************************/
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