Hi, Here is an optional command for BTI. This dumplog command can merge binary formatted log files. After you run the stap command with -M and -b, you will get stpd_cpu* files. Then you can read it by executing following command: $ dumplog stpd_cpu* Also this command can convert binary formatted log files into a LKST compatible binary log file. $ dumplog -l stpd_cpu* -o lkst.log -- Masami HIRAMATSU 2nd Research Dept. Hitachi, Ltd., Systems Development Laboratory E-mail: hiramatu@sdl.hitachi.co.jp