Date: Fri, 19 Aug 2016 16:28:29 -0400 From: Mark Moellering <markmoellering@psyberation.com> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: How do I limit I/O usage for a user/process? A user broke my system Message-ID: <CAA0uU3WP7umixdMnM_WPDH8YTK5pg=7F%2B_eHkdj3oEcLsSqjNQ@mail.gmail.com> In-Reply-To: <CALfReye1U78Hz80spFAKfNeXmqVYxQmc3mXE0jAw-M42HV-fDg@mail.gmail.com> References: <CAM4nNt8dOojYNA6FK6_zj7vN92e6ML2A0QbsXH3fz8rP%2BCbVTg@mail.gmail.com> <20160819104058.1c60a63fb832fbdc1524207c@sohara.org> <20160819101657.GB2560@hephaistos.local> <20160819114429.756b3d25f9335417a0c673c3@sohara.org> <CALfReyexwH09sBbFxQWoo8NEokZ0jzr-tW0QtKL8y8-a618VUw@mail.gmail.com> <5dcc797b-5aac-cac1-b120-b4ff91f360dd@tysdomain.com> <CALfReye1U78Hz80spFAKfNeXmqVYxQmc3mXE0jAw-M42HV-fDg@mail.gmail.com>
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On Fri, Aug 19, 2016 at 10:01 AM, krad <kraduk@gmail.com> wrote: > maybe, but the simple answers are always worth considering. > > On 19 August 2016 at 14:59, Littlefield, Tyler <tyler@tysdomain.com> wrote: > >> >> On 8/19/2016 9:54 AM, krad wrote: >> >>> Does the same issue happen with vim no nano? If not maybe just remove >>> pico. >>> >>> That's a slippery slope. Just use login classes to limit usage. >> >> On 19 August 2016 at 11:44, Steve O'Hara-Smith <steve@sohara.org> wrote: >>> >>> On Fri, 19 Aug 2016 12:16:57 +0200 >>>> "Martin S. Weber" <Ephaeton@gmx.net> wrote: >>>> >>>> On 2016-08-19 10:40:58, Steve O'Hara-Smith wrote: >>>>> (...) >>>>> >>>>>> Very likely the problem was due to memory use and you are tight >>>>>> on memory for your normal load. >>>>>> >>>>> >>>>> Which, as I might add, *should* be the normal usage pattern of a box. >>>>> >>>> >>>> You want all the memory in use I agree, but you don't want it so >>>> tight that there is constant memory pressure so there should be a goodly >>>> amount inactive, in cache and buffers. If there is swap activity then you >>>> are too tight for the load. >>>> >>>> -- >>>> Steve O'Hara-Smith | Directable Mirror Arrays >>>> C:>WIN | A better way to focus the >>>> sun >>>> The computer obeys and wins. | licences available see >>>> You lose and Bill collects. | http://www.sohara.org/ >>>> _______________________________________________ >>>> freebsd-questions@freebsd.org mailing list >>>> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >>>> To unsubscribe, send any mail to "freebsd-questions- >>>> unsubscribe@freebsd.org" >>>> >>>> _______________________________________________ >>> freebsd-questions@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >>> To unsubscribe, send any mail to "freebsd-questions-unsubscribe >>> @freebsd.org" >>> >>> >> >> -- >> Take care, >> Ty >> Twitter: @sorressean >> Web: https://tysdomain.com >> Pubkey: https://tysdomain.com/files/pubkey.asc >> > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" Depending on the nature of the box, one possibility (albeit a slightly more complex one), is using a jail. If basic user accounts are in a jail, the jail can run out of memory and start file swapping without affecting the kernel or other server functions. Again, this depends on your set-up, etc Mark Moellering
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