RE: Lockless page cache test results

Chen, Kenneth W
2006-04-27T07:51:37Z

Andi Kleen wrote on Wednesday, April 26, 2006 11:15 PM
> On Thursday 27 April 2006 07:39, Chen, Kenneth W wrote:
> > (1) 2P Intel Xeon, 3.4 GHz/HT, 2M L2
> > http://kernel-perf.sourceforge.net/splice/2P-3.4Ghz.png
> >
> > (2) 4P Intel Xeon, 3.0 GHz/HT, 8M L3
> > http://kernel-perf.sourceforge.net/splice/4P-3.0Ghz.png
> >
> > (3) 4P Intel Xeon, 3.0 GHz/DC/HT, 2M L2 (per core)
> > http://kernel-perf.sourceforge.net/splice/4P-3.0Ghz-DCHT.png
> >
> > (4) everything on one graph:
> > http://kernel-perf.sourceforge.net/splice/splice.png
>
> Looks like a clear improvement for lockless unless I'm misreading the
> graphs. (Can you please use different colors next time?)

Sorry, I'm a bit rusty with gnuplot. Color charts are updated with the
same url. On the last one, I was trying to plot same CPU type with same
color but different line weight for each kernel,

plot "data" using 1:2 title "2P Xeon 3.4 GHz - vanilla" with linespoints lt 1 lw 10, \
"data" using 1:3 title "2P Xeon 3.4 GHz - lockless" with linespoints lt 1 lw 1

gnuplot gives me the same color on both plotted lines, but the line weight
argument doesn't have any effect. I looked for examples everywhere on the
web with no avail. I must be missing some argument somewhere that I can't
figure out right now :-(