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From "Aleksey Shipilev" <aleksey.shipi...@gmail.com>
Subject Re: Problems with migration to new ICU, r592434 & r593469
Date Fri, 16 Nov 2007 15:44:12 GMT
> *I suggest to roll back ICU migration till the end of current milestone.*
+1

Thanks,
Aleksey,
ESSD, Intel.

On Nov 16, 2007 6:40 PM, Sergey Kuksenko <sergey.kuksenko@gmail.com> wrote:
> Hi All,
>
> I'd like to continue discussion about migration to new ICU which was done by
> r592434 & r593469 commits.
> This migration is a big deal and it should be done in any case.
> However, after migration we got a set of problems like a set of failures and
> performance degradations.
> Some of the failures were already fixed, some of them are noticed on
> http://wiki.apache.org/harmony/MigrateToICU ,some of them are noticed in
> JIRA like (https://issues.apache.org/jira/browse/HARMONY-5085) and I am
> afraid that some of them are not yet detected.
> Performance degradation you can see in JIRAs (
> https://issues.apache.org/jira/browse/HARMONY-5129 &
> https://issues.apache.org/jira/browse/HARMONY-5122)
> In general we may conclude that performance of SPECjbb2005 with DRLVM
> decreased by 20%.
> Moreover, according our results, performance of application servers measured
> with EAStress degraded 3x times!!!
> Also, there are a lot of small tests which can show degradation.
>
> And the key problem here that we have no so much time before code freeze in
> December and it is not good to have new milestone release worse then
> previous.
> *I suggest to roll back ICU migration till the end of current milestone.*
> Let's apply these patches exactly after beginning of the next milestone and
> will work on all stability and performance problems together in next
> milestone. I hope in that case we will have more time and tune new ICU more
> efficiently.
>
>
> --
> Best regards,
> ---
> Sergey Kuksenko.
> Intel Enterprise Solutions Software Division.
>

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