Date: Mon, 29 Apr 2002 14:39:07 -0400 From: Roberto de Iriarte <roberto@spock.cl> To: freebsd-alpha@FreeBSD.org Subject: Compaq FastVM comments Message-ID: <3CCD934B.8040005@spock.cl> References: <20020429173704.A93161@freebie.xs4all.nl>
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I keep working on getting Compaq's FastVM for Linux to run under FreeBSD. There are however some issues with the FastVM itself, that will make it less worthwile than i thought at first glance. 1. The good: It feels way faster than the "Classic" vm. 2. The bad: The classic vm has a large memory footprint, but it is nothing compared with FastVM, either under Du 4.0F or Linux. On Du 4.0F i ran out of memory (256 Mb + 512 Mb swap) without being able to complete VolanoMark 2.1.2 On Linux, i stripped the enviroment of everything unessencial to be able to complete the benchmark, this allocated about 600mb, which makes the benchmark results useless. Of note, this has ben run successfuly on Sun and IBM's JIT on an i386 notebook with 192 Mb, and on an Ultra1 with 256 Mb both with no swapping! 3. The glitches: Integration with Swing is not perfect, i.e the Java2D demo fails sometimes, but then again, the FastVM is in beta. 4. As a sidenote, i can report that the classic VM delivers the same performance under FreeBSD under emulation as on native Linux (+- 1%). So, even if i get it to run, it won't be much of a solution for those with smaller machines, that being those with less than half a gigabyte of ram! Regards Roberto To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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