What (free) tools are there for looking at system behavior?
syd, a utility like top, is on the Freeware disk for versions of Digital UNIX before V3.0. It is also available for anonymous FTP from many sites. One is ftp://ftp.Uni-Koeln.DE/decosf and there you can also get a version that works with version 3.x of Digital UNIX. The latest official version of top (3.3) supports single cpu Alphas running OSF/1 1.2, 1.3, 2.0, 3.0, and 3.2. It’s at ftp://eecs.nwu.edu/pub/top It does not support multi-cpu alphas, because no-one with root access to a multi-cpu alpha has stepped forward to do the work. When compiling, note the warning about compiling with optimisation. lsof, a utility for listing open files, is available from ftp://vic.cc.purdue.edu:/pub. vmubc is a graphical and tty-based tool for displaying statistics on CPU, UBC, and virtual memory. Note that to compile on OSF/1 2.x, add -DGSI_CPUS_IN_BOX=55 to the CFLAGS. vmubc is available from ftp://gatekeeper.dec.com/pub/Digital/vmubc.tar.Z. It was written by George Chaltas of DEC. [Dave Sill, de5@