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From "Xiao-Feng Li" <xiaofeng...@gmail.com>
Subject Re: [drlvm][startup][performance][classloader] mapping bootstrap jars directly into memory (HARMONY-5281)
Date Fri, 07 Mar 2008 14:08:45 GMT
On Fri, Mar 7, 2008 at 6:42 PM, Nataly Naumova
<natalya.s.naumova@gmail.com> wrote:
> Tim,
>
>  I've measured the startup performance for simple applications, speedup
>  was ~2-3% on simple graphics aplication with lots of AWT/SWING
>  classes. But I think the idea is quite pretty, because of we get rid
>  of a big amount of system calls, such as lseek, read etc. As we're
>  working just with pointers directly.

Can it be a runtime option chosen by the user?

Thanks,
xiaofeng
>
>
>  On Thu, Mar 6, 2008 at 7:45 PM, Tim Ellison <t.p.ellison@gmail.com> wrote:
>  > Pavel Pervov (JIRA) wrote:
>  >  > Please, note, that memory footprint of DRLVM will increase by size of
>  >  > JRE, namely, ~20 megs.
>  >
>  >  Eek, that's quite significant!  What's the speed-up by doing this?
>  >
>  >  Regards,
>  >  Tim
>  >
>
>
>
>  --
>  Nataly Naumova,
>  Intel Middleware Products Division
>



-- 
http://xiao-feng.blogspot.com

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