Performance comparison

Andrew Haley aph@cambridge.redhat.com
Mon Jul 29 08:02:00 GMT 2002


Jeff Sturm writes:
 > On 2002年7月29日, Norman Hendrich wrote:
 > > after I got my simulation framework to compile and run under gcj
 > > (in non-GUI mode), you might be interested in the first results.
 > 
 > Thanks. What version of gcj did you try?
 > 
 > > I suspect that gcj is possibly just missing to inline one or two
 > > critical functions. Overall performance is quite good. The
 > > interpreter works fine but has some headroom for improvements :-)
 > 
 > When I benchmark "real" applications I often find the results are
 > dominated by object allocation/collection times. I haven't seen any
 > convincing improvement from inlining (perhaps because the RTL inliner
 > never really worked that well anyway).
I'm sure that's the main reason. Once we get global inlining working
I expect to see a decent improvement.
Andrew.


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