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From "Aleksey Shipilev" <aleksey.shipi...@gmail.com>
Subject Re: [performance] Startup cost is high for Harmony (HARMONY-6002)
Date Thu, 23 Oct 2008 10:17:43 GMT
Ah, right! And all the tree of patches should be reconsidered:

[startup][performance] general optimizations
https://issues.apache.org/jira/browse/HARMONY-5277

Thanks,
Aleksey.

On Thu, Oct 23, 2008 at 2:15 PM, Aleksey Shipilev
<aleksey.shipilev@gmail.com> wrote:
> Hi, Wenlong, all!
>
> Please also consider the recompilation issues in Jitrino. There's a
> little patch to play with [1], it introduces the delay between the
> first compilation of the method (with JET) and the recompilation (with
> OPT), effectively preventing the OPT compilation from happening when
> overall execution time is low. IMO, there should be another mechanism:
> something like "compiler budget" for the application, that is,
> fraction of overall execution time JIT should spend recompiling.
>
> Anyway, I had managed to improve Eclipse startup +15% faster with [1].
>
> Thanks,
> Aleksey.
>
> [1] https://issues.apache.org/jira/browse/HARMONY-5356
>
> On Thu, Oct 23, 2008 at 12:29 AM, Tim Ellison <t.p.ellison@gmail.com> wrote:
>> Wenlong Li (JIRA) wrote:
>>> The startup time is long for the simple helloworld program. On a Core
>>> 2 Quad-core processor, running the simple helloworld program will take
>>> more than 300 ms.
>>> Can we reduce the startup cost?
>>
>> Yes, I hope so ... concrete suggestions or analysis of startup costs are
>> welcome.
>>
>> Regards,
>> Tim
>>
>

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