Thomas Walter wrote: > > Rene, > > > > > > > my root-macro executes very fast until it reaches the part, > > > where the postscript file is generated. The cpu-usage drops > > > from about 99% to less then 3%. > > > > > > > Thomas, > > In this part of the macro, you draw 400 histograms. This may take a long > > time > > depending how many channels you have per histogram and your options. > > 50*( 3 * 128 channels + 2 * 100 channels + 10 ch + 25 ch + 50 ch) > > > Is your Postcript file generated on an AFS disk? > > No it is generated on the local scratch disk. > > > What is the size of the generated ps file? > > 2973 KB > > But all this doesn't explain the very low cpu-usage. One further thing we > have to consider the display. I'm computing in Zuerich and displaying > in Hamburg over a ssh-connection. > > Is it possible, that root is waiting for some X11-messages? If this is the > case, is it possible to generate the ps-file without display the > histograms on X11? > Thomas, It is clear that you have a problem with the line. The time is not taken by Postscript but by X. You can generate the Postscript file by running Root with the batch option root -b Root > .x macro.C Let me know the result. Rene Brun
This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:43:29 MET