December 2002
Intermediate to advanced
178 pages
5h 1m
English
book
Geac System21 commerce.connect: Implementation on the IBM eServer iSeries Server
by Yessong Johng, Colin Brown, Jim Hirsch, John Lawler
Content preview from Geac System21 commerce.connect: Implementation on the IBM eServer iSeries Server
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Chapter 5. Performance tuning 125
5.4.1 Initial Java heap size
–Xms is an important parameter that controls the initial Java heap size. It is followed by the
size, which is usually an integer followed by m (represents megabytes). The default is 32 Mb,
which would appear as –Xms32m.
Figure 5-18 highlights the Xms parameter on the WebSphere Console’s Application Server
panel.
Figure 5-18 Application Server panel of the WebSphere console showing the Xms parameter
If you have only a few users who will not be very busy, then this setting may be sufficient. If,
however, you have many users, especially active users, you may benefit from a larger val
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