Swapoff checks that automatically -- but I usually do it when I notice that
I am using a ton of swap, but not all my ram. It may just be an illusion,
but it seems that when I have a browser that is starting to act up and
slow, this fixes it.

On Mon, Sep 18, 2017 at 4:17 PM, Justin Krejci <jus at krytosvirus.com> wrote:

> Do you check to make sure your existing swap usage and RAM usage combined
> does not equal a number higher than the amount of total RAM you have on the
> system? I am guessing flushing swap into RAM when there is not enough RAM
> available is a bad thing to do.
>
> Just curious, why do you clear your swap space like that periodically? If
> your swap is being used too much, perhaps you either need more RAM or else
> should maybe turn down your vm.swappiness in sysctl.
>
> On 2017-09-18 04:07 PM, Jeff Chapin wrote:
>
> I periodically check swap usage, and run:
>
> sudo swapoff -a; sudo swapon -a;
>
> This will force anything in swap (on disk) back into RAM.
>
> Jeff
>
> On Mon, Sep 18, 2017 at 4:05 PM, Steve Trapp <stevetrapp at comcast.net>
> wrote:
>
>> Aha. I tried 'man swap' but didn't think of 'swapon'. My google search
>> was not
>> very productive, so I am thankful of your information! -Steve
>>
>> On Mon, Sep 18, 2017 at 07:16:16PM +0000, Iznogoud wrote:
>> > >
>> > > For GNU/Linux, how do you turn swap off and how do you turn in back
>> on again?
>> > >
>> >
>> > Here is the top of the manual page:
>> >
>> >
>> > NAME
>> >        swapon, swapoff - enable/disable devices and files for paging
>> and swap-
>> >        ping
>> >
>> > SYNOPSIS
>> >        /sbin/swapon [-h -V]
>> >        /sbin/swapon -a [-v] [-e]
>> >        /sbin/swapon [-v] [-p priority]  specialfile ...
>> >        /sbin/swapon [-s]
>> >        /sbin/swapoff [-h -V]
>> >        /sbin/swapoff -a
>> >        /sbin/swapoff specialfile ...
>> >
>> > _______________________________________________
>> > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>> > tclug-list at mn-linux.org
>> > http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>> --
>> Name: Steve Trapp
>> Location: Just east of the Missippi River
>> Email-address: stevetrapp<AT>comcast<DOT>net
>> Homepage: comcast DROPPED ALL HOMEPAGES--Where do I put my PGP public key
>> now?
>> _______________________________________________
>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>> tclug-list at mn-linux.org
>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>>
>
>
>
> --
> Jeff Chapin
> President, CedarLug, retired
> President, UNIPC, "I'll get around to it"
> President, UNI Scuba Club
> Senator, NISG, retired
>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
>


-- 
Jeff Chapin
President, CedarLug, retired
President, UNIPC, "I'll get around to it"
President, UNI Scuba Club
Senator, NISG, retired
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