Re: [xsl] XSLTPROC performance

[Abel Braaksma <abel.online@xxxxxxxxx>]

Colin Paul Adams wrote:
>     Andrew> I don't think it needs to be amortised... If you start the
>     Andrew> timing at the correct point and ignore the first few runs
>     Andrew> then I'd say you can safely forget about JVM startup and
>     Andrew> warm-up for the remaining runs.
>
> Then you've ignored it completely, so you don't get a fair comparison.
>   


I think what Colin tries to get at is that on most "real world" systems, 
you'll have to start the JVM. Depending on the type of system you'll 
have to start it once (a servlet which stays in memory) or you have to 
start it each time again (a workflow management system running every now 
and then a couple of XSLT).

It's negligible in the case of the servlet, as it is part of the overall 
startup time. But it is not negligible if your system will have to deal 
with this startup time. In which case I agree with Colin that you 
shouldn't ignore it.

What's fair or not depends on the context. Some people don't like the 
startup time of Diesel because they only do groceries around the corner 
with it, other people find it negligible, because they drive daily from 
Copenhagen to Barcelona and back (ignoring the speed limits).

Cheers,
-- Abel Braaksma