Hi Tiemo,
On 2015-09-18 11:11, Tiemo Hollmann TB wrote:
Thanks Kay, Neil and Mark,
I can't use LC 7 or above, because the sort international is completely
broken (as I have reported), what makes LC 7 or above completely
unusable
for German developers. (because sorting is just such a standard
function...)
But I will give 6.7.6 a try. Hoping I don't get any pitfalls with QT on
modern systems, because I can't use AVFoundation.
I do think that 'completely broken' is perhaps not quite the correct
phrase to use in this instance (I appreciate your native language is not
English!).
I believe 7.0's 'sort international' functions entirely correctly - it
just does it substantially slower than before!
I recently did some work on the sort command for LiveCode 8 to optimize
it's performance:
https://github.com/livecode/livecode/pull/2496
The improvements were dramatic. Indeed, the new approach is actually
much better than it was prior to 7.0 as it ensures it only computes
certain information it needs once, and operates on a much smaller
intermediate representation.
I asked Seb to take some timings of the stack you provided in different
versions. Here is what he found:
6.7.7-rc-2 xSortListe 56ms - sort full list
6.7.7-rc-2 xSortListe 27ms - sort list items with 'a'
7.1.0-rc-3 xSortListe 596ms - sort full list
7.1.0-rc-3 xSortListe 293ms - sort list items with 'a'
8.0.0-dp-5 xSortListe 44ms - sort full list
8.0.0-dp-5 xSortListe 26ms - sort list items with 'a'
So, I think we can hopefully say that sort has returned to its previous
levels of performance (and indeed, might even be faster than before
although the margin for error in the above tests is too small to say for
sure) :)
We'll look into back-porting this particular patch to the 7.x branch -
the reason I put it into 8.0 was mainly because I was being
conservative. If my changes were to break something, we'd have more time
to sort it out on the develop branch, rather than on the 7.x maintenance
branch.
On an unrelated note...
Can you explain why you can't use AVFoundation? Sorry to have to be the
bearer of bad news here, but anybody who is currently dependent on
QuickTime in any fashion is going to run into significant and insoluble
problems as time moves forward. We have just about managed to preserve
existing player / multimedia functionality in the Mac engine with the
move to Cocoa (with considerably difficulty, I might add); but the
reality is that we cannot continue to support QuickTime indefinitely as
Apple dropped support for it, and stopped maintaining it several years
ago. It could disappear from a new version of OS X at any point - it is
already barred from the Mac AppStore.
Warmest Regards,
Mark.
--
Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/
LiveCode: Everyone can create apps
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