Hi Hubert,

Thank you for finding this thread from 2015:

https://groups.google.com/d/topic/tiddlywiki/hlIvXE6jRys/discussion

As you note, I think we are still in the same place: on lower powered devices, 
it would be useful to be able to extend the refresh dampening mechanism to 
selectively apply to tiddlers that are not drafts.

The code that checks for tiddlers that should be included in refresh dampening 
looks for the presence of the “draft.of” field:

https://github.com/Jermolene/TiddlyWiki5/blob/master/core/modules/startup/render.js#L82-L88
 
<https://github.com/Jermolene/TiddlyWiki5/blob/master/core/modules/startup/render.js#L82-L88>

We can change that logic, but we need to keep it simple because it will be 
executed every time any tiddler is modified. So, for example, using a filter 
would be ruled out.

We could add an additional field that we check for along with the “draft.of” 
field, such as “refresh.slow” as suggested in the thread above. I don’t think 
that’s going to be particularly convenient in lots of situations (e.g. ensuring 
that $:/temp/search gets that field). Another possibility might be to use a 
special prefix e.g. $:/dampened/ or perhaps $:/volatile/.

You asked

> Now I have to figure out how I can prevent this open text tiddler from being 
> constantly referenced in a red notification rectangle

I’m not sure what you mean here. Are you talking about the draft tiddler 
notification at the bottom of the screen?


> and to prevent TW from saving it, because once it exits editing mode the lag 
> is reintroduced.

I may have missed something in the thread earlier, but you can keep a perpetual 
draft by not opening it directly, instead editing it via an edit-text widget 
from another tiddler.

Best wishes

Jeremy



> 
> Regards,
> Hubert
> 
> 
> 
> On Friday, 11 October 2019 09:09:34 UTC+1, Hubert wrote:
> Hi Mark,
> 
> My TW now has 63k entries, and, in a meeting the other day,I was able to look 
> up entries about as fast as people asked.
> 
> That's impressive. Did you use a search bar or your own <edit-text/> widget? 
> I'm particularly interested if it was the latter.
> 
> But that was using a Kindle Fire, which might have a stronger processor
> than a motorola phone.
> 
> I don't believe you've mentioned what browser you're using. My tests were on 
> an old version of FF that I'm not upgrading because it
> can still use TiddlyFox.
> 
> It might be worth experimenting with different browsers. I believe browser 
> makers have wide latitude in how they implement JS internals.
> 
> I'm now at a Windows PC with i7 processor, 8 gigs of RAM and running latest 
> FF. The lag is still there, albeit of course not that annoying as on mobile. 
> Same issue on Chrome.
> 
> 
> On Thursday, 10 October 2019 16:29:56 UTC+1, Mark S. wrote:
> In my case, I kept the tags but removed all usage of the tag filter operator. 
> My TW now has 63k entries, and, in a meeting the other day,
> I was able to look up entries about as fast as people asked. But that was 
> using a Kindle Fire, which might have a stronger processor
> than a motorola phone.
> 
> I don't believe you've mentioned what browser you're using. My tests were on 
> an old version of FF that I'm not upgrading because it
> can still use TiddlyFox.
> 
> It might be worth experimenting with different browsers. I believe browser 
> makers have wide latitude in how they implement JS internals.
> 
> Good luck!
> 
> 
> On Thursday, October 10, 2019 at 8:00:47 AM UTC-7, Hubert wrote:
> Sounds counter-intuitive, but I've just checked it nevertheless.
> 
> Nope, 400 is much worse in my case.
> 
> The circumstantial evidence I have so far is pointing to tags...
> 
> On Thursday, 10 October 2019 15:49:30 UTC+1, Mark S. wrote:
> I you know, I think experienced this before, and commented. Try resetting the 
> timeout back to 400 and reloading.
> 
> After setting the TO to 60000, it feels slower when typing into the input box.
> 
> On Thursday, October 10, 2019 at 5:53:07 AM UTC-7, Hubert wrote:
> Hi Mark,
>  
> Just testing now, and setting it to 60000 doesn't seem to impact the speed 
> with regular editing nor inside a form box.
> 
> Have you reloaded the wiki after setting it to 60000? It might not take 
> effect until reloaded.
> 
> Is there anything special about your TW file? Have you tested on an empty ?
> 
> No and yes, respectively.
> 
> The lag on mobile may be more or less noticeable, which could even depend on 
> the size of the wiki and/or on the number of tiddlers currently open. I lack 
> the knowledge to draw conclusions but I do suspect it has to do with the 
> refresh mechanism.
> 
> BTW. my wiki is just slightly over 5 megs.
> 
> Regards,
> Hubert
> 
> 
> On Wednesday, 9 October 2019 21:15:04 UTC+1, Mark S. wrote:
> I've mentioned typing speeds in the past. I never found that the draft speed 
> setting really changed anything one
> way or the other. Maybe it makes a difference on Mac but not on Android.
> 
> Just testing now, and setting it to 60000 doesn't seem to impact the speed 
> with regular editing nor inside a form box.
> 
> Is there anything special about your TW file? Have you tested on an empty ?
> 
> Good luck!
> 
> On Wednesday, October 9, 2019 at 12:49:43 PM UTC-7, Hubert wrote:
> Hi Mark,
> 
> What vintage is your phone?
> 
> It's a fairly recent midrange Motorola. 
> 
> What version of TW are you using? There are size/speed improvements in 5.1.20.
> 
> I'm using the latest stable TW version (5.1.21).
> 
> I tried your test on the full downloaded TiddlyWiki.com page on my 2012 era 
> samsung phone. The speed of course was slow, but it was the same for the edit 
> box as for editing the tiddler itself.
> 
> Thanks for having a go with the test on mobile. Have you modified the 
> TypingTimeout value before testing? I'm having a "native" (no lag) typing 
> experience when editing a tiddler after setting the value in 
> $:/config/Drafts/TypingTimeout to 60000. By default, this value is around 400 
> (ms), which results in a noticeable lag in my case, so just wondering.
> 
> You probably know this already, but be sure to not have your "recent" tiddler 
> opened in the sidebar.
> 
> Yes, I do :). I have it disabled across the whole wiki.
> 
> 
> 
> On Wednesday, 9 October 2019 19:55:31 UTC+1, Mark S. wrote:
> What vintage is your phone?
> 
> What version of TW are you using? There are size/speed improvements in 5.1.20.
> 
> I tried your test on the full downloaded TiddlyWiki.com page on my 2012 era 
> samsung phone. The speed of course was slow, but it was the same
> for the edit box as for editing the tiddler itself. In either case, the upper 
> limit to typing was my ability to use the tiny keyboard.
> 
> You probably know this already, but be sure to not have your "recent" tiddler 
> opened in the sidebar.
> 
> Good luck!
> 
> 
> On Tuesday, October 8, 2019 at 7:47:00 AM UTC-7, Hubert wrote:
> Hello,
> 
> Before I go into details, my $:/config/Drafts/TypingTimeout tiddler has a 
> value of 60000 (60 seconds), which fixed the lag when entering text / typing 
> in a tiddler in edit mode.
> 
> However, I'm still experiencing lag when entering text using <$edit-text/> 
> widgets (of course, the tiddler being populated as I type is separate to the 
> one that has the edit-text widget).
> 
> This lag is negligible on my Chromebook or Windows PC (I have no means of 
> measuring it but even if it's 5ms then it's not much to worry about) but it 
> is very noticeable on Android (using Chrome as an example). It gets better if 
> I close all tiddlers except the one that has the <$edit-text/> widget and I 
> assume that the lag has to do with TiddlyWiki re-rendering all the open 
> tiddlers as I type (though I'm not sure if that's the case).
> 
> What exactly is introducing the lag when using <$edit-text/> widgets? Is it 
> realtime rendering? If so, could the scope of $:/config/Drafts/TypingTimeout 
> be extended to also include <$edit-text/> widgets, so that the lag is fixed 
> at the expense of instantaneous rendering? Is there any other mechanism that 
> is at fault here? I do not believe that we should require a multicore 
> workstation to have a smooth typing experience.
> 
> Typing into a tiddler in edit mode and entering text in a password prompt 
> both work with absolutely no lag on mobile (this is the 'native' typing 
> feel), but these are the only two examples.
> 
> The <$range/> widget seems to suffer from the same lag occasionally (it's not 
> super smooth) but I'm not sure if it's affected by the same root cause.
> 
> Finally, apologies for awkward phrasing; English is not my first language.
> 
> Many thanks,
> Hubert
> 
> 
> 
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