Tools

Here is an introduction explaining how to use lgrpinfo(1), plgrp(1), pmadvise(1), and pmap(1) and an example using them to understand, observe, and control thread and memory placement with STREAM.

• lgrpinfo(1) - Perl script that displays lgroup hierarchy, contents, and characteristics

• plgrp(1): proc tool for observing and affecting home lgroup and lgroup affinities

• pmadvise(1): proc tool for applying advice with madvise(3C)

• pmap(1) extensions to display lgroup containing physical memory backing given virtual address in specified process

• Solaris::Lgrp: Perl module that makes lgroup API available to Perl scripts to use

• ps(1) extensions for lgroups

• prstat(1M) extensions for lgroups

Also, we added a field for the home lgroup of a thread to the lwpsinfo structure in /proc, so it can be gotten through /proc.  This is used by plgrp(1), ps(1), and prstat(1M) to get the home lgroup of a thread.  Here is the new proc(4) man page and the man page diffs documenting the change.

Here is the writeup for our PSARC case.

Status

• 09-06-06: Integrated lgrpinfo(1), plgrp(1), pmap -L, pmadvise(1), prstat -h, and ps -h into S11 build 49