Memory leak on FreeBSD and OS X platforms

[giampaolo]

From [email protected] on February 26, 2009 19:38:10

What steps will reproduce the problem?  
Running a continual script in the background, e.g.: 

import psutil
import sys

run_count = 0
while (run_count < 20000):
    run_count = run_count + 1
    sys.stdout.write("\r\r&#37;s" &#37; run_count)
    sys.stdout.flush()

    try:
        cmdline = psutil.Process(0).cmdline
    except Exception, e:
        print "\n"
        print "Exception for PID 0: &#37;s" &#37; e
        continue

    PID = -1
    for i in psutil.get_process_list():
        PID = i.pid
        try:
            cmdline = i.cmdline
        except psutil.NoSuchProcess:
            continue
        except Exception, e:
            print "\n"
            print "Exception for PID &#37;s: &#37;s" &#37; (PID, e)
            continue 

What is the expected output?  


What do you see instead?  
Memory usage (monitored via ps or top) climbs steadily in the background,
instead of staying constant or rising and falling as you'd expect with
garbage collecting.

Original issue: http://code.google.com/p/psutil/issues/detail?id=28

[giampaolo]

From [email protected] on February 26, 2009 10:43:19

FreeBSD code patched in r179 and OS X code patched as part of r182 . Was missing some
free() calls where needed, and needed to DECREF some Python objects after appending
to lists. Memory now remains rock solid when running the test code. Eventually we
should come up with an easier self-contained test case for memory leaks. Possibly
this will be easier to do when psutil supports reading process memory usage details.

Status: Verified

[giampaolo]

From [email protected] on February 26, 2009 11:56:44

Labels: OpSys-FreeBSD OpSys-OSX Performance

[giampaolo]

From [email protected] on March 17, 2009 08:31:20

Status: Fixed