[ale] how do I increase Linux swap file size?

Michael Trausch mike at trausch.us
Tue Jan 18 10:16:03 EST 2011


Absolutely agreed. Aside from program bugs, I have only ever used swap due
to lack of chip RAM once or twice, working on processing some huge data.
So, not time to add another 2GB stick yet...

--
Sent from my HTC Vision (G2), running Gingerbread.
That is, a phone-like mobile device. :)
On Jan 18, 2011 10:14 AM, "Geoffrey Myers" <lists at serioustechnology.com>
wrote:
> Michael Trausch wrote:
>> Even using my desktop system for heavy tasks, I rarely dip into swap
>> usage. I have 6 GB RAM, and unless I am being pretty wasteful everything
>> fits in that. Even multilayer GIMP images while compiling the kernel
>> and GCC seems to not fill up memory (but I can say bye bye to I/O
>> bandwidth...)
>
> I would suggest that if you're 'dipping into swap' on any kind of
> regular basis, it's time for more memory. Swap is a protection
> mechanism, not something you want to use on a regular basis.
>
>>
>> --
>> Sent from my HTC Vision (G2), running Gingerbread.
>> That is, a phone-like mobile device. :)
>>
>> On Jan 18, 2011 9:56 AM, "Jim Kinney" <jim.kinney at gmail.com
>> <mailto:jim.kinney at gmail.com>> wrote:
>> > Swap space _really_ depends on how the system is used. A single user
>> desktop
>> > running web browsing and email can have swap turned of if the system
>> has 4GB
>> > RAM. Using a heavy memory application like extensive gimp on HUGE
>> files with
>> > loads of undo levels, leave the swap at 2:1 swap:RAM
>> >
>> > For a multi-user server, swap use will be determined by the type of
>> > application and the loading of it. A multi-purpose system running
>> mail, web,
>> > file servics, etc, will benefit from the swap space at around 2:1. But
a
>> > high performance solo-service web server running tomcat with multiple
>> > multi-core cpu's will not benefit unless the web application has
>> long-lived
>> > caching of user state.
>> >
>> > High performance file servers (NFS or CIFS) should have swap nearly
>> turned
>> > off or at the most 1:1 for caching of system . If a fileserver starts
>> > hitting swap, the pager is about to start beeping.
>> >
>> > --
>> > --
>> > James P. Kinney III
>> > I would rather stumble along in freedom than walk effortlessly in
chains.
>>
>>
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>>
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>
>
> --
> Until later, Geoffrey
>
> "I predict future happiness for America if they can prevent
> the government from wasting the labors of the people under
> the pretense of taking care of them."
> - Thomas Jefferson
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