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From "Nathan Beyer" <nbe...@gmail.com>
Subject Re: [drlvm][startup][performance][classloader] mapping bootstrap jars directly into memory (HARMONY-5281)
Date Sat, 08 Mar 2008 19:37:31 GMT
On Fri, Mar 7, 2008 at 4:46 AM, Tim Ellison <t.p.ellison@gmail.com> wrote:
> Nataly Naumova wrote:
>  > 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.
>
>  Understood, but to increase the runtime footprint by 20Mb is bad IMHO.

What's the total footprint? What was it before? The RI has a ~25M
footprint for general uses the last time I checked.

-Nathan

>
>  Tim
>
>
>
>
>  > 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
>  >>
>  >
>  >
>  >
>

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