Hi Jan, 2009/2/16 Jan Pannecoeck <j...@mgb-tech.com>: > Hello Robert, > > I'm using JamVM 1.5.0 at the ARM and JamVM 1.4.5 at my desktop pc. Is the > problem you described also in those versions, or only in the 1.5.1 version? >
Yes, the problem is in both 1.4.5 and 1.5.0 (JSR 166 support was added in 1.4.5, with an inefficient park/unpark implementation -- this has finally been replaced in 1.5.2). Rob. > Thanks for your reply! > Jan > > Robert Lougher wrote: >> >> Hi Jan, >> >> 2009/2/16 Jan Pannecoeck <j...@mgb-tech.com>: >> >>> >>> Hello everyone, >>> >>> I'm a Java Developer and I'm working mainly with embedded devices. Now >>> I'm >>> running JamVM with GNU Classpath on an ARM processor. This is all working >>> fine, and I didn't had any big problems until now... I'll try to explain >>> my >>> problem as good as possible, but if someone needs some more information, >>> you >>> can contact me ofcourse! >>> >>> So, I'm using the Smack API to get an XMPPConnection with my XMPPServer. >>> This is working, but my CPU is running at 100%! I do have the same >>> problem >>> (CPU at 100%) when I try to run this java program on my desktop computer >>> with JamVM and GNU Classpath. When I run it using Sun's JVM, the CPU load >>> is >>> around 0-1 %. >>> >>> I don't have any clue what this problem could be causing, I'm trying to >>> find >>> out what part of the Smack API is causing the problems, but at the moment >>> I >>> log-in to the server, the CPU jumps to 100%... Could this be caused by >>> some >>> encryption that's been used by Smack? Since the Smack API needs a >>> KeyStoreType, I'm using the gkr type since that's the one supported by >>> GNU >>> Classpath... >>> >>> If anyone had this kind of problems before with GNU Classpath, or could >>> solve my problem, this would be great!! Any help would be welcome since >>> I'm >>> quite stuck with this... >>> >>> >> >> What version of JamVM are you using? It's possible some code you're >> running is using the new concurrency API (JSR 166). In JamVM 1.5.1, >> park/unpark was incomplete and could use 100% CPU. This is fixed in >> 1.5.2. >> >> Rob. >> >> >>> >>> Kind regards, >>> Jan >>> >>> >>> >>> >>> >>> >> >> >
