Messages in this thread | | | From | safemode <> | Subject | Re: graphical swap comparison of aa and rik vm | Date | Thu, 1 Nov 2001 01:10:24 -0500 |
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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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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