Mario Charest postmaster@127.0.0.1 wrote:
“MicheleD” <> michele-d@ibelgique.com> > wrote in message
news:b0r1o6$jts$> 1@inn.qnx.com> …
Hi,
I have an application running on QNX 4.25.
I observe (using df) that the free disk space is getting smaller and
smaller
when the application runs for a long time.
Does QNX save anything on the disk during its live time?
syslogd saves to disk, aside that program nothing comes to mind.
Use sin files to find open files
I also try to understand where the space was lost using the command “du”,
but I can not understand this command : for a particular directory, the
sum
of all subdirectories does not correspond to the value given for the
directory by the command “du”.
Try to find an answer for you I think you find a bug or I dont understand what its suppose to do > 
It`s seems du takes into account the space taken by a directory entry (which
is ok) but seems to do the math wrong depending how many level of direcotry
there is.
If there is 2 levels (no file, just directory) it looks ok, but if there is
3 level (haven`t tried with more ) the math is wrong.
To find the offending file (the one that grows) you can use find with option
Assuming the file hasn’t been unlinked. A common trick for temporary files
is to open the file, unlink it, and then use it. When the process exits,
the file space is “automagically” cleaned up.
In that case, Mario’s suggestion of using “sin fi” is the best… I’d also
filter out your program via -P option, otherwise “sin fi”'s output can get
big…
Cheers,
-RK
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.