From: Andii H. <gnu...@me...> - 2012-04-25 00:15:52
|
On 24 April 2012 21:46, David P Grove <gr...@us...> wrote: > Andreas Sewe <se...@st...> wrote on 04/24/2012 > 04:16:11 PM: > >> From: Andreas Sewe <se...@st...> >> To: jik...@li..., >> Date: 04/24/2012 04:17 PM >> Subject: Re: [rvm-core] Updating to GNU Classpath 0.99? > > >> >> Hi Dave, >> >> > No objections from me if people have the bandwidth to pursue this. >> > >> > Moving from one version of Classpath to another is sometimes easy, >> > sometimes painful (mainly dependent on whether or not we need to fool >> > around with the set of primordial classes and their class initializers). >> > If Jikes RVM is booting and running even a few programs correctly with >> > 0.99, then there is a pretty good chance that this will be one of the >> > "easy" upgrades. >> >> As far as I can tell, it runs fine with the primordials defined for GNU >> Classpath 0.97.2, but I will do some more extensive testing tomorrow. >> (DaCapo 2006-10-MR2 works, as do several of my Scala benchmarks :-) >> > > Cool. One of the reasons we ended up not moving to 0.98 was that the > performance of luindex from the DaCapo benchmarks took a huge hit moving > from 0.97.2 to 0.98. At the time, I determined it was due to changes in > their regex package (http://jira.codehaus.org/browse/RVM-781 for the gory > details). It would be interesting to see if the performance regression was > fixed in 0.99. > Not to my knowledge. The release has been a long time coming but there's been long periods of nothing. If the problem is still there, it would be helpful to see some profiling info. from the luindex benchmark. Hopefully, we can get to the bottom of this. CPStringBuilder was meant to be a performance improvement by avoiding copying arrays (mainly motivated by JikesRVM IIRC). > --dave > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Jikesrvm-core mailing list > Jik...@li... > https://lists.sourceforge.net/lists/listinfo/jikesrvm-core > -- Andii :-) |