get_process_ppid() and other should cache the status file

[giampaolo]

From [email protected] on June 12, 2012 21:25:17

opening the process status file on *every* API call makes psutil very slow on 
high loads -- e.g. we use it to stream CPU usage statistics.

The Process class should cache the value of the file, at least to get the ppid, 
uid gid, since those don't change much during the process life.

Original issue: http://code.google.com/p/psutil/issues/detail?id=281

[giampaolo]

From g.rodola on June 12, 2012 21:28:41

Good idea.
Done in r1343 for ppid, name, exe, cmdline and create_time properties.
Prorcess uids and gids may be subject to change hence we can't cache them.

Status: FixedInSVN
Labels: Milestone-0.5.0 Performance Compatibility

[giampaolo]

From g.rodola on June 27, 2012 11:54:03

0.5.0 is finally out. Closing out as fixed.

Status: Fixed

[giampaolo]

From g.rodola on March 02, 2013 04:08:59

Updated csets after the SVN -> Mercurial migration: r1343 == revision ???