April 2003
Beginner to intermediate
264 pages
5h 30m
English
book
Experiences with Oracle for Linux on zSeries
by Viviane Anavi-Chaput, Kathryn Arrell, Denny Dutcavich, Bruce Frank, Michael Gorman, Mark Jaenen, Tom Russell
Content preview from Experiences with Oracle for Linux on zSeries
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Appendix D. Linux Performance Data Collection and Analysis Tools 205
IOSTAT & SAR
Iostat and sar are not part of the standard SuSE installation. They belong to the
sysstat package. Both are command line tools. Iostat reports input/output
statistics for devices.
Example: D-3 Sample iostat output
ioczm10s:~ # iostat
Linux 2.4.7-SuSE-SMP (ioczm10s) 09/30/02
avg-cpu: %user %nice %sys %idle
6.24 0.01 2.19 91.56
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
dev94-0 28.39 243.19 430.91 206946016 366688088
Sar offers history information about the system activity. To automate the data
collection you have to run sar scheduled e.g. by ...