On 15 March 2012 15:31, Scott Ford <[email protected]> wrote:
> All,
>
> I heard art one time on z/os that java was well sort of a performance
> hog..not talking in Unix Systems Services...is it true and what release did
> it change, if it did ...
Even early versions of java on z/OS were not impossible performance
hogs, but starting up the JVM was. This is what led to people used to
other platforms to complain that it took several seconds (or more) to
get the response from a simple "java -version" . IBM has made general
performance improvements (though it's not clear whether they have kept
up with the expected size ("bloat") of Java apps these days), and more
specific changes to allow persistent JVMs under various circumstances,
and of course the restricted engine gimmick is available for those who
need to fiddle with their pricing.
Tony H.
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