On Tue, Dec 09 2008, Jens Axboe wrote: > > slat cli reports values that doesn't match at all what is viewable from > > gnuplot output. Averagage is said to be 16 on the cli whereas the > > gnuplot trace shows 20 at min. > > Max is said to be 145 for slat but displayed at 60 on the gnuplot. > > Slat is also said to be usec on the cli but shown as msec on the y axis > > of the gnuplot. > > > > Complete archive showing that could be downloaded at > > http://konilope.linuxeries.org/tmp/localr.tar.bz2 > > > > It seems that units may vary from the cli output regarding the range of > > results. I have some case where clat is shown in usec instead of msec. > > Maybe that what confuse the gnuplot output. > > Like in : > > write: io=32,003MiB, bw=124MiB/s, iops=1,294, runt=263681msec > > slat (usec): min=12, max=71, avg=15.43, stdev= 2.72 > > clat (usec): min=663, max=1,537K, avg=49431.63, stdev=108787.82 > > bw (KiB/s) : min= 0, max=171311, per=99.91%, avg=127152.93, > > stdev=21619.46 > > I'll take a look at this. It's weird, must be some gnuplot oddity. The data points are definitely there and the range of the y-axis reflects this as well, however it seems to be missing in the output. I've tried increasing the resolution, but it doesn't change this fact. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
