These are just a few notes to help you get going with PAGG and job containers. This is included from the README in the download directory:

Wed Sep 21 08:11:16 PDT 2005
Wed Sep 28 08:24:07 PDT 2005
PAGG/Process Aggregates is now konwn as pnotify/Process Notification.

The usage is similar.  Usage information and a section on new variable
names can be found in the pnotify docs after patching the kernel:
Documentation/pnotify.txt.

There are two versoins of Linux Job.  Both use pnotify.  One version 
interfaces with userland via a jobfs virtual filesystem mounted at 
/proc/job.  The job library does more of the lifting in this version.
This should be considered experimental.

The other version is the tried-and-true Job implementation.  It interfaces
with userland via ioctls on a file made available in /proc - /proc/job.
This version does more of the lifting in the kernel.  This version should
be considered stable.

Directories:
old..........old pagg and job files
pnotify......New Process Notification implementation (formally pagg)
job..........job patch and userland pieces - stable version
job-test.....job patch and userland pieces - test jobfs version, other test vers
pnotify-test.test versions of pnotify patch