Re: [SSI-devel] OpenSSI 1.9.6 in the making
Brought to you by:
brucewalker,
rogertsang
From: Watson, B. J. (HP L. SIEL) <Bri...@hp...> - 2009-11-10 19:50:04
|
Roger, John, and the other active OpenSSI developers, Congratulations on all your hard work this year! Best regards, Brian > -----Original Message----- > From: Roger Tsang [mailto:rog...@gm...] > Sent: Tuesday, November 10, 2009 12:06 AM > To: ssic-linux-devel > Subject: [SSI-devel] OpenSSI 1.9.6 in the making > > Hi, > > These are just some thoughts I'd like to share. > > As you know the original plan was to release 2.0.0pre3 as 1.9.6 around > first half of year 2009. Early in the year we decided to rename the > release to 1.9.6 due to the amount of changes to the core. However > one criteria I had in mind for making this release was improved > stability from the previous release. At the time I did not feel we've > met this criteria. At the same time some people felt that porting to > 2.6.18 is more urgent, but I strongly believe the core should be > stabilized first to ensure we won't have to deal with outstanding core > bugs that could impact our porting effort. > > So we ended up focusing our effort fixing core bugs. At the same time > I took the opportunity to increase the performance of OpenSSI. Thanks > to John Hughes we also identified some useful regression tests. Today > most of the bugs in our tracker are closed or fixed. We also > completed more than a few OpenSSI enhancements / feature requests in > our tracker. > > During the course of the year we've seen almost 20,000 lines of code > (LoC) changes at the core. The net change is less but this is still > 5-10x more than the previous year. I haven't really looked up the > numbers; that's my impression. Worthy of mention in addition to > system latency performance improvements is the time and effort taken > to address the more obscure bugs only seen on multi-core / SMP > machines and preemptive kernels. > > Though rarely mentioned I believe one of the major technical obstacles > to reaching stable was OpenSSI-1.9.x had been suffering the same class > of problems the openMosix project (now defunct) had long struggled > with and that is SMP bugs. If I'm not wrong the developers who have > forked openMosix are still dealing with these problems. So I am > thankful that most of our OpenSSI developers and designers kept this > in mind when porting to Linux and am grateful that we are able to > overcome the remaining issues considering our OpenSSI code base is > much larger than openMosix and considering we've integrated some > openMosix code (eek!). > > > Regards, > Roger > > ----------------------------------------------------------------------- > ------- > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > 30-Day > trial. Simplify your report design, integration and deployment - and > focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > ssic-linux-devel mailing list > ssi...@li... > https://lists.sourceforge.net/lists/listinfo/ssic-linux-devel |