Hey Curry, I really appreciate you doing this video / post , hopefully it will have the intended outcome. I must say I am in production with 9 and have been satisfied with the performance so far, but i can't go back to compare.... so I guess I am happy to hear that there is a boost still to come.
Thanks again for the efforts. On Wed, Sep 5, 2018 at 12:46 AM Curry Kenworthy via use-livecode < use-livecode@lists.runrev.com> wrote: > > LiveCode 9 (as of 9.0.1 RC 3) is significantly slower than LiveCode 6.7 > in a variety of tasks. This is a huge problem, it affects many of the > projects I'm doing, and I'm sure others are in the same boat. Fellow > boat members: please join my bug report/feature request below! > > The slowdown can be demonstrated both in test code and in real-world > applications. The problem(s) may be in a specific area, but the actual > effects on running code are widespread and fairly general, impacting > multiple areas in my testing from math and loops to text, chunks, and > arrays. I am posting some resources tonight to help draw attention and > evaluate this problem, and requesting that LiveCode 9 be optimized to > achieve at least speed parity with LiveCode 6 in these areas. > > (I am encouraged that some LC engine optimization impacting arrays is > already underway by LC Mark W., but I want to emphasize and prove beyond > doubt that several areas are affected and not only arrays. Therefore I > hope this bug reports and test stack(s) will help to confirm whether the > optimizations underway also solve the other areas, or whether those > areas need further separate optimization.) > > Resources below. > > A) QA Bug or Feature Request: > > https://quality.livecode.com/show_bug.cgi?id=21561 > > Report on this problem (which negatively impacts end users for existing > features) with 2 recipes and downloads (test demo code and real world > application). If your own app or code is affected by LC 9 performance, > please add your CC and a comment. > > B) YouTube video: LC Version "Showdown" > > https://youtu.be/8uhOem46VXg > > Thorough demonstration and discussion of my tests and the results, > pitting LiveCode 6.7 against the latest release of LiveCode 9 in several > tasks that evaluate loops, math, text appends, array access, item > chunks, and text replace. > > JavaScript code is also tested and provided to provide additional > reference. (Thanks Richard G. for the suggestion! Very interesting > results.) > > C) LC Version "Showdown" demo stack: > > http://curryk.com/showdown.zip > > The stack used in the video. See and test the code for yourself. > Compares 6.7 and LC 9 (or others, you can use 7 or 8 too) for speed in > loops, math, text appends, array access, item chunks, and text replace. > (Also has effects used in video competition; this issue has been on my > to-do list for some time, and I wanted a stack that looks good, makes > comparisons quick and easy, and can serve as a useful platform for > current and future tests.) > > Some buttons have right-click or shift-click alternatives, these are > listed in tooltips. If desired, paste the JavaScript (which is > automatically placed on the clipboard after each test) into js.do or > another web page to compare the JS speed to LC. > > BTW, I'm only days away from a new WordLib release and have been doing a > great deal of cross-version testing with it too. That, and Mark's array > effort, were what prompted me to make extra time for this and get it > posted today. WordReport is also due for an update, so is WordOut, and > performance is something I take very seriously. Beyond that, I place the > highest importance on all client app performance too. > > WordLib code uses a variety of the code areas mentioned here, some > arrays but not relying on them heavily in the work, so I consider it a > good balanced real-world example of the impact of LC 9 performance. It's > pretty hard-hit for big files, because many or most operations in LC 9 > take 2x, 3x, or 4x the time compared to LC 6. (In fact I think it's > somewhat challenging to find substantial code that is NOT hit by LC 9 > performance. I found one example in 9's favor to include in the showdown > stack and video.) > > So again I wanted to emphasize it's not just arrays - that is proven > here beyond any doubt in downloadable code and on video. I hope the > array optimizations might help the other areas too, but if not, they > need attention. Thank you! :) > > Best wishes, > > Curry Kenworthy > > Custom Software Development > LiveCode Training and Consulting > http://livecodeconsulting.com/ > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
