Date: Thu, 3 Nov 2011 12:22:20 -0400 From: Jon Schipp <jonschipp@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Check Memory Usage, program like 'free' in Linux Message-ID: <CAB15j_DERXo%2BB48s7E=JJDQ%2BQwTSyPw5tiscXUdFHa5XG6WNRQ@mail.gmail.com> In-Reply-To: <44sjm542vo.fsf@be-well.ilk.org> References: <CAB15j_DPjj-kHXBGeGCXTWYt-ZzyYkbxqEdvoVXUgf=6g%2BZQWw@mail.gmail.com> <4EB2965F.1030809@gmail.com> <CAB15j_Dh1nKSvBdy%2Bcj7bt5XBHfEqhAD0c3jMq7hVx1VzFC37A@mail.gmail.com> <44sjm542vo.fsf@be-well.ilk.org>
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On Thu, Nov 3, 2011 at 11:55 AM, Lowell Gilbert < freebsd-questions-local@be-well.ilk.org> wrote: > Jon Schipp <jonschipp@gmail.com> writes: > > > On Thu, Nov 3, 2011 at 9:25 AM, Rares Aioanei <bsdlisten@gmail.com> > wrote: > > > >> On 11/03/2011 03:18 PM, Jon Schipp wrote: > >> > >>> Is there a program to check physical memory usage in FreeBSD(using 8.2 > >>> RELEASE)? > >>> In vain of 'free' in Linux. > >>> > >>> I know you can check the values with sysctl, I was just checking if > anyone > >>> has a "cleaner" option. > >>> I was always curious. > >>> > >>> Thanks > >>> Jon > >>> ______________________________**_________________ > >>> freebsd-questions@freebsd.org mailing list > >>> http://lists.freebsd.org/**mailman/listinfo/freebsd-**questions<; > http://lists.freebsd.org/mailman/listinfo/freebsd-questions>; > >>> To unsubscribe, send any mail to "freebsd-questions-** > >>> unsubscribe@freebsd.org <freebsd-questions-unsubscribe@freebsd.org>" > >>> > >>> top? > >> > > > > Crap, I forgot mention that it needs to be non-interactive, it will be > for > > e-mail alerts. > > > > So that rules out top as for as I know. > > No, you could script it out of top(1), but I'm going to guess that > you're trying to be warned when the system is close to running out of > memory. That is silly -- you paid for the memory; why would you *want* > it to sit around doing nothing? > While this isn't my intention... I'm curious: You wouldn't want to know when your machine has reached periods of high memory utilization? Occurrence/frequency information seems pretty valuable. More importantly, at specific times, noticing patterns, use during/after business hours If you didn't want to use memory, it wouldn't be purchased. I don't think keeping track of the utility of your purchases is silly. Also note that the definition of "free" is somewhat complicated. > > Maybe if you described the actual problem you want to solve, we could > suggest a more appropriate answer. > > A literal answer to your question might be: > top -d 1|grep '^Mem:'|cut -d ',' -f 6 > assuming the format of the line of top doesn't change. > That does the trick. I didn't think it was possible to grab data from interactive programs without throwing in some "garbage". Should've tested. Thanks
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