swap partition

[Stari Karp]

On Thu, 2016-12-29 at 21:05 +0100, Polytropon wrote:
> On Thu, 29 Dec 2016 12:30:42 -0500, Stari Karp wrote:
> > 
> > On Thu, 2016-12-29 at 16:29 +0000, John Levine wrote:
> > > 
> > > In article <1483012420.95172.9.camel at yandex.com> you write:
> > > > 
> > > > 
> > > > I like to increase swap partition ...
> > > Why?  Most BSD systems hardly use swap space at all.  There's
> > > plenty
> > > of paging but that's mostly from the files that back the memory.
> > > 
> > > R's,
> > > John
> > I am using Synth and I have 8 GB memory and swap partition was made
> > defaut 3.6 GB and when I built LibreOFFice and Firefox for example
> > together than going swap to 100% 
> > (swap_pager: out of swap space
> > kernel: swap_pager_getswapspace(5): failed)
> > and because that I think to increase swap partition.
> That's really "impressive"...
> 
> I had to open 70+ tabs with "Flash" content running in order
> to get Opera start using swap - on a PC with 2 GB RAM, plus
> 2 GB swap partition. I made a terminal capture for this
> spectacular event:
> 
>   1  [||||                      7.9%]     Tasks: 73, 0 thr; 1 running
>   2  [|                         2.6%]     Load average: 0.38 0.70
> 0.42 
>   Mem[|||||||||||||||||||1601/1990MB]     Uptime: 00:52:33
>   Swp[|||||               275/2047MB]
> 
> Over time, swap did increase a little bit, but hardly any
> CPU load - mostly I/O load.
> 
>   Mem[|||||||||||||||||||1597/1990MB]
>   Swp[||||||              404/2047MB]
> 
> The system kept being basically responsive, but the browser
> was no fun to interact with until the "Flash" processes
> were forcedly killed. :-)
> 

I did a test at this time still running when I writing email with
Evolution:
 I open Firefox and star on youtube watching 16 different movies, than
star listening on VLC Gregory Isaac and on Mplayer run W. Wenders
Paris-Texas. On GIMP I edit one photo and open was Blender, Stellarium,
play between working on GIMP game Rocks'n Diamonds and copy /home and
/var on external firewire HD. Swap was not touched, 0% and memory was
used 1.9 GB. I monitored with System Monitor on GNOME 3.