[Python-Dev] [Python-checkins] Python Regression Test Failuresrefleak (1) (original) (raw)

Kristján V. Jónsson kristjan at ccpgames.com
Wed Jun 7 11:51:15 CEST 2006

Right, it is a FILETIME in the API, but the resolution stored on disk is limited to what the disk format provides. FAT32 is particularly skinny. I imagine that the value to store comes from GetSystemTimeAsFileTime which is updated with the clock interrupt.

K

-----Original Message----- From: python-dev-bounces+kristjan=ccpgames.com at python.org [mailto:python-dev-bounces+kristjan=ccpgames.com at python.org] On Behalf Of "Martin v. Löwis" Sent: 7. júní 2006 05:54 To: Tim Peters Cc: Neal Norwitz; Python Dev Subject: Re: [Python-Dev] [Python-checkins] Python Regression Test Failuresrefleak (1)

Tim Peters wrote:

and filecmp contains a module-level cache with a funky scheme for avoiding file comparisons if various os.stat() values haven't changed. But stmtime on Windows doesn't necessarily change when a file is modified -- it has limited resolution (2 seconds on FAT32, and I'm having a hard time finding a believable answer for NTFS (which I'm using)).

The time stamp itself has a precision of 100ns (it really is a FILETIME). I don't know whether there is any documentation that explains how often it is updated; I doubt it has a higher resolution than the system clock :-)

Anyone bored enough to report what happens on Linux?

I had to run it 18 times to get

test_exceptions beginning 42 repetitions 123456789012345678901234567890123456789012 .......................................... test_exceptions leaked [203, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] references 1 test OK.

Regards, Martin

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