Date: Fri, 26 Apr 2013 17:11:04 -0700 From: "Marc G. Fournier" <scrappy@hub.org> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: freebsd-fs@freebsd.org Subject: Re: Initial NFS Test: Linux vs FreeBSD (769% slower) Message-ID: <80DFA89B-3891-4CCC-B56C-A461A30A4B0B@hub.org> In-Reply-To: <1904620729.1184886.1367020597750.JavaMail.root@erie.cs.uoguelph.ca> References: <1904620729.1184886.1367020597750.JavaMail.root@erie.cs.uoguelph.ca>
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On 2013-04-26, at 16:56 , Rick Macklem <rmacklem@uoguelph.ca> wrote: >>>=20 >>> FreeBSD start time for jBoss .. 270731ms (768% *slower*) >>> Linux start time for jBoss =85.=85. 35218 ms >>>=20 > One thing is that, if you write an executable file to a Linux NFS > mount point and then run it, without unmounting/remounting, I don't > think it will page it in (the write will cache the pages). >=20 > If you didn't unmount/remount between writing jboss to the server and > timing the startup of it, please try it again after doing a = dismount/mount. > (Doing the dismount/mount on the Linux client resulted in the same # = of > reads as FreeBSD for a quick test I did, instead of none without the > dismount/remount.) Okay, went one further, and rebooted the server, mounted file system and = ran test .. this way, all caches cleared =85 ran faster this time:=20 JBoss AS 7.1.1.Final "Brontes" started in 32727ms Will work on the rest over the weekend =85 have to get to a function at = daughters school =85
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