[Octave-bug-tracker] [bug #59706] Avoid "canonicalize_file_name" on Windows

[anonymous]

Follow-up Comment #30, bug #59706 (project octave):

Note that during some tests I have found that 'find_function' is slow only if
a name is searched for the first time. When the function name is found it is
cached to speed up the search.

For the call stack I used API Monitor [1]. Only the file system related
function are monitored. Results for Octave 5.2.0 and 6.1.1 are in the attached
zip file.

Some observations:

* On Octave 5.1.0 paths are shorten by tilde but on 6.1.1 full names are
used.

* It appears that Octave assumes a private sub-directory for all directories
that are parts of the Octave path and tries to find the function in the
private sub-directories. Which is an excessive work and possibly is
incorrect.

* When a path directory actually contains a private sub-directory on Octave
6.1.1 we can see near 25 extra function calls that I think is invoked by
gnulib.

[1] http://www.rohitab.com/apimonitor


(file #50633)
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Additional Item Attachment:

File name: callstacks-520vs611.zip        Size:2 KB
    <https://file.savannah.gnu.org/file/callstacks-520vs611.zip?file_id=50633>



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