Bob Sneidar wrote:
> On Apr 6, 2020, at 9:28 AM, Richard Gaskin wrote:
>
>> Your application writing data to disk is a very different thing from
>> Windows Desktop Explorer automatically refreshing a directory view.
>
> Control doesn’t return to the application until the tilde version goes
> away.
True, but LC is done with that tilde file and deletes it LONG before the
separate process of the Windows File Explorer polls and redraws the
graphical illustration of the deletion that has already happened.
> On Apr 6, 2020, at 9:28 AM, Richard Gaskin wrote:
>
>> on mouseUp
>> put the long seconds into t
>> write "somedata" to url ("file:whatever")
>> if the result is not empty then
>> answer "Couldn't write file (" &sysError()&")"
>> exit to top
>> end if
>> put the long seconds - t
>> end mouseUp
>
> You are testing low level file operations. I am testing the saving of
> a Livecode stack. I don’t think this test applies.
Comforting to know that there is no perceived difference in generic file
writes between Mac and Win, and that we can focus exclusively on the
small handful of additional steps LC takes when saving a stack file.
This is my understanding of the steps LC takes to save a stack file
(hopefully Mark Waddingham will chime in if any of this is incorrect or
incomplete), where "*" denotes steps unique to stack files not taken
with other files:
* 1. Serialize stack data
* 2. If file exists, rename it with tilde
3. Open the file
4. Write the data to disk
5. Close the file
* 6. Delete the tilde'd file
This test will measure that:
on mouseUp
put the long seconds into t
save this stack
put the long seconds - t
end mouseUp
If the stack contains little data, as with other benchmarking you may
need to put the task in a loop in between the timing statements to have
a duration long enough to be meaningfully measurable, e.g.:
on mouseUp
put the long seconds into t
repeat 100
save this stack
end repeat
put the long seconds - t
end mouseUp
Run that on similar Mac and Win iron and let us know how it goes.
--
Richard Gaskin
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
____________________________________________________________________
ambassa...@fourthworld.com http://www.FourthWorld.com
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