Date: Thu, 08 Jan 2009 09:44:04 -0800 From: Brian Gardner <brian@experts-exchange.com> To: Greg Lewis <glewis@eyesbeyond.com> Cc: freebsd-java@freebsd.org Subject: Re: jmap Message-ID: <49663B64.5040204@experts-exchange.com> In-Reply-To: <20090108044605.GA26885@misty.eyesbeyond.com> References: <4963E688.2060005@experts-exchange.com> <20090108044605.GA26885@misty.eyesbeyond.com>
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Are there alternates methods available to access heap information from a running vm? This seems quite essential for tuning so I'd like to think there is something out there. Greg Lewis wrote: > On Tue, Jan 06, 2009 at 03:17:28PM -0800, Brian Gardner wrote: > >> I'm trying to use jmap to dump a histo of a running vm, version >> jdk-1.6.0.3p4_6. jmap keeps returning the following error, 'no >> providers installed'. Are these tools supposed to function? If not are >> there any alternates? >> >> $ /usr/local/jdk1.6.0/bin/jps >> 72095 Jps >> 88259 Bootstrap >> >> $ /usr/local/jdk1.6.0/bin/jmap -histo 88259 >> 88259: no providers installed >> >> $ ps -jax | grep 88259 >> ee 88259 1 88249 87874 0 I p0 15:39.48 [java] >> ee 72142 72094 72141 88505 2 R+ p1 0:00.00 grep 88259 >> > > I don't know for sure, but I'm guessing that jmap requires a > serviceability agent, which there isn't an implementation of for > FreeBSD yet. We basically just either skip building or stub out > all the code for that. > >
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