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From Tim Ellison <t.p.elli...@gmail.com>
Subject Re: [drlvm][startup][performance][classloader] mapping bootstrap jars directly into memory (HARMONY-5281)
Date Fri, 07 Mar 2008 10:46:06 GMT
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.

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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