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From Jeff MAURY <jeffma...@jeffmaury.com>
Subject Re: [Studio] startup performances
Date Sat, 20 Jun 2015 06:33:49 GMT
You should check it they are running with the same JVM

Jeff

On Fri, Jun 19, 2015 at 10:00 PM, Stefan Seelmann <mail@stefan-seelmann.de>
wrote:

> On 06/19/2015 11:41 AM, Emmanuel L├ęcharny wrote:
> > Hi guys,
> >
> > I just profiled Studio this morning, and I see nothing in our code that
> > causes the slowdown we can perceive with 2.0.0-M9 compared to the
> > previous version. I suspect LUNA to be more costly than Kepler or JUNO...
> >
> > Anyone has tested Studio with Mars ?
> >
>
> I downloaded Java versions of Juno (3.8) Juno (4.2), Luna, Mars (RC3). I
> started them with "time ./eclipse" and closed immediately when the
> windows appeared. Results:
>
> Juno 3.8: 10.63s user 0.32s system 193% cpu 5.643 total
> Juno 4.2: 25.20s user 0.49s system 289% cpu 8.873 total
> Luna 4.4: 26.96s user 0.54s system 296% cpu 9.288 total
> Mars 4.5: 33.26s user 0.61s system 308% cpu 10.978 total
>
> You see there is a big differences between 3.x and 4.x. Also within the
> 4.x series the startup time increases slightly from version to version.
> What's interesting that startup utilizes multiple cores.
>
> For Juno there exist two variants:
> * 3.8 based on old Eclipse 3 code
> * 4.2 based on new Eclipse 4 code
>
> Studio 2.0.0-M8 is based on the Juno 3.8 which doesn't include all the
> e4 stuff (EMF based UI, CSS styling, dependency injection) and Eclipse 3
> compatibility layer.
>
> I think we have to live with it if we want to use newer Eclipse
> versions. There are some "tuning" tips in the web like adding
> -Xverify:none but that didn't change anything for me.
>
> Kind Regards,
> Stefan
>
>


-- 
Jeff MAURY


"Legacy code" often differs from its suggested alternative by actually
working and scaling.
 - Bjarne Stroustrup

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