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SubjectRe: graphical swap comparison of aa and rik vm
Date
I decided it would be nice to see the actual swap io as well.   since 
allocating and writing and reading are two different things.

http://safemode.homeip.net/si-swap.png (max 24508)
http://safemode.homeip.net/so-swap.png (max 118132)
http://safemode.homeip.net/bi-swap.png (max 24536)

finally, i redid the swap one i have posted before. This time it has correct
scaling. Because of this you'll see a final dropoff of the aa's graph to 0,
disregard it, as well as all of the 0 data in the other graphs as they're
there to keep scale correct. Everything after 52 seconds in the aa graphs is
filler.

http://safemode.homeip.net/swap.png (max 290740)

All of these are larger than before due to the larger dimensions of the graph
files. feel free to mirror them if i end up not being fast enough.




On Wednesday 31 October 2001 22:18, safemode wrote:
> In an earlier post i mentioned a way of locking up my vm easily and
> repeatedly but that has since been fixed in one way or another. I reran
> the test and took vmstat 1 's of both runnings on a 2.4.14-pre6-preempt
> kernel and a 2.4.13-ac5-preempt kernel. I began both vmstat's at the same
> time (about 4 seconds before running each). What i did was run kghostview
> on a postscript file located here http://safemode.homeip.net/test.ps . It
> is 224K. kmail was loaded previously in both trials so kdeinit was already
> loaded as were all libs. After kghostview became responsive, i waited a
> few seconds (again about 5) and then exited the app.
>
> No other interaction or running programs were present while doing this.
> I have 771580 KB of ram and 290740 KB of swap.
>
> Now to explain the graphs.
> The blue is AA's vm. The red is Rik's vm. Rik's vm finished in 66
> seconds. AA's vm finished in 52 seconds. Both start at 0 swap usage. Both
> from clean boots.
>
> Here is the graph http://safemode.homeip.net/vm_swapcomparison.png .
> It's about 4.6K.
>
> When you look at the graph it goes like this.
> The left side is 0 seconds, the right side is 66 seconds. bottom is 0KB,
> top is 290740KB.
>
> These are generated from data from the orignal vmstat outputs. These are
> at http://safemode.homeip.net/aa_vmstat
> and
> http://safemode.homeip.net/rik_vmstat
>
> I'll leave the actual interpretation of the data of both the graph and raw
> data up to those who actually know the code.
>
> Neadless to say that while running the test on either box, the entire
> computer became unresponsive multiple times for extended lengths of times.
> No OOM was generated on either run.
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