Watchface on Forerunner 235 slow to start

Add some logs with timestamp to the startup code to see what takes time

Are you trying to do something where you don't draw the entire screen every time onUpdate is called? I can see where it might take .7 seconds to show vs .6 seconds on more powerful devices, but not take minutes.  I have a number of WFs I wrote when the fr32x was new and never seen anything like this.  I need to charge my 230, but I'll see if those WFs still work.

Could be that on the 23x/630/735 the WF starts in low power mode or drops to low power (onEnterSleep) right away.  I'd have to run some tests.  And remember, there is no onPartialUpdate on these devices.  

There's no way to change this behavior.

I added logs and it got a lot better, but it's still a little strange. Times are in sec.msec from the initial getTimer. For the curious jparts 0 is the J2000.0 date, the last two are the raw unix time and raw getTimer.

Beginning of init @ 0.008000
API 10405 jparts time: [8460.026476, 2023, 3, 1, 6, 36, 54, 3, 45414, 1677674214, 67733527]
init complete @ 1.760000
Drawing layout ticks @ 1.800000
Drawing layout date @ 4.208000
onLayout complete @ 4.240000
in onShow @ 5.504000
in onExitSleep @ 5.592000
Begin onUpdate @ 7.040000
Begin reOrb calc @ 7.088000
Begin reOrb chunk 0 @ 8.496000
Begin redraw @ 13.920001
Begin redraw hands @ 15.384001
Begin onUpdate @ 15.568001
Begin reOrb calc @ 16.984001
Begin reOrb chunk 1 @ 17.016001
in onEnterSleep @ 23.392000
Begin onUpdate @ 23.416000
Begin reOrb calc @ 24.816002
Begin reOrb chunk 2 @ 24.848001
Begin redraw @ 29.736002
Begin redraw hands @ 29.760002
Begin onUpdate @ 31.256002
Begin reOrb calc @ 31.296001
Begin reOrb chunk 3 @ 32.688000
Begin redraw @ 34.728001
Begin redraw hands @ 36.120003
Begin onUpdate @ 36.240002
Begin reOrb calc @ 37.648003
Begin reOrb chunk 4 @ 37.680000
Begin redraw @ 41.080002
Begin redraw hands @ 41.104000
Begin onUpdate @ 42.592003
Begin reOrb calc @ 42.632004
Begin reOrb chunk 5 @ 44.040001
Begin redraw @ 46.752003
Begin redraw hands @ 47.456001
Begin onUpdate @ 48.272003
Begin reOrb calc @ 48.992001
Begin reOrb chunk 6 @ 49.704002
Begin redraw @ 52.400002
Begin redraw hands @ 53.120003
Begin onUpdate @ 53.904003
Begin reOrb calc @ 54.632004
Begin reOrb chunk 7 @ 55.344002
Begin redraw @ 58.048004
Begin redraw hands @ 58.752003
Begin onUpdate @ 60.120003
Begin reOrb calc @ 60.848003
Begin reOrb chunk 8 @ 61.560001
Begin redraw @ 63.568005
Begin redraw hands @ 64.280006
Begin onUpdate @ 66.128006
Begin reOrb calc @ 66.864006
Complete reOrb calc @ 67.568001
Begin redraw @ 68.320000
Begin redraw Orb @ 69.048004
Begin redraw ticks @ 71.928001
Begin redraw date @ 73.616005
Begin redraw hands @ 74.336006
Begin onUpdate @ 126.128006
in onExitSleep @ 128.264008
Begin onUpdate @ 128.840012
Begin redraw @ 129.424011
Begin redraw Orb @ 132.352005
Begin redraw ticks @ 136.192001
Begin redraw date @ 137.768005
Begin redraw hands @ 138.328003
in onEnterSleep @ 138.944000
Begin onUpdate @ 139.488007
Begin redraw @ 140.040009
Begin redraw Orb @ 140.608002
Begin redraw ticks @ 143.304001
Begin redraw date @ 144.832001
Begin redraw hands @ 145.376007

onShow calls WatchUi.requestUpdate, so it seems like it should have then gone to onUpdate instead of onExitSleep? It calls onEnterSleep but onUpdate keeps getting called? The order and timing of calls for sleep and update seem wonky.

Same log from the Fenix 7. Obviously faster hardware, but the order seems more like what I would expect from the FR 235 as well.

Beginning of init @ 0.000000
API 40200 jparts time: [8460.045736, 2023, 3, 1, 7, 4, 38, 3, 47078, 1677675878, 788313630]
init complete @ 0.128000
Drawing layout ticks @ 0.192000
Drawing layout date @ 0.704000
onLayout complete @ 0.768000
in onShow @ 0.768000
Begin onUpdate @ 0.768000
Begin reOrb calc @ 0.768000
Begin reOrb chunk 0 @ 0.768000
Begin redraw @ 1.984000
Begin redraw hands @ 1.984000
Begin onUpdate @ 2.240000
Begin reOrb calc @ 2.304000
Begin reOrb chunk 1 @ 2.304000
Begin onUpdate @ 3.008000
Begin reOrb calc @ 3.008000
Begin reOrb chunk 2 @ 3.008000
Begin onUpdate @ 3.520000
Begin reOrb calc @ 3.520000
Begin reOrb chunk 3 @ 3.520000
Begin onUpdate @ 4.032000
Begin reOrb calc @ 4.096000
Begin reOrb chunk 4 @ 4.096000
Begin onUpdate @ 4.864000
Begin reOrb calc @ 4.864000
Complete reOrb calc @ 4.864000
Begin redraw @ 4.864000
Begin redraw Orb @ 4.864000
Begin redraw ticks @ 5.248000
Begin redraw date @ 5.760000
Begin redraw hands @ 5.824000
Begin onUpdate @ 5.888000
Begin onUpdate @ 6.848001
Begin onUpdate @ 7.872000
Begin onUpdate @ 8.064000
in onEnterSleep @ 8.640000
Begin onUpdate @ 8.640000
Begin redraw @ 8.640000
Begin redraw Orb @ 8.640000
Begin redraw ticks @ 9.024000
Begin redraw date @ 9.536000
Begin redraw hands @ 9.600000
Begin onUpdate @ 9.600000
Begin onUpdate @ 9.664001
Begin onUpdate @ 9.856001
Begin onUpdate @ 10.816001

You don't need to call Ui.requestUpdate() from onShow.

Try this WF on the 23x.  You'll see seconds when you first start the WF, then it drops to low power after 10 seconds, and the seconds are no longer shown.They show again after a gesture.

https://apps.garmin.com/en-US/apps/2c632834-3bb2-4dfa-b008-4f6d48dda0cb

I do nothing in onShow() and always update the whole screen in onUpdate, but suppress the seconds when in low power.

That's what happens on the Fenix except that onPartialUpdate draws the second hand always. I didn't add any logging to onPartialUpdate initially in fear of breaking the power budget. onPartialUpdate is listed as an API 2.3.0 feature in the docs so I would not expect it to be called on the FR. I added logging to onPartialUpdate, my power budget fears do not seem to have materialized.

Beginning of init @ 0.000000
API 40200 jparts time: [8460.067220, 2023, 3, 1, 7, 35, 34, 3, 48934, 1677677734, 790168816]
init complete @ 0.192000
Drawing layout ticks @ 0.192000
Drawing layout date @ 0.704000
onLayout complete @ 0.768000
in onShow @ 0.768000
Begin onUpdate @ 0.768000
Begin reOrb calc @ 0.768000
Begin reOrb chunk 0 @ 0.768000
Begin redraw @ 1.984000
Begin redraw hands @ 2.048000
in onPartialUpdate @ 2.048000
redraw bitmap from previous clip region @ 2.048000
redefine clip region @ 2.048000
draw second hand @ 2.048000
onPartialUpdate complete @ 2.112000
Begin onUpdate @ 2.368000
Begin reOrb calc @ 2.368000
Begin reOrb chunk 1 @ 2.368000
in onPartialUpdate @ 2.944000
redraw bitmap from previous clip region @ 2.944000
redefine clip region @ 2.944000
draw second hand @ 3.008000
onPartialUpdate complete @ 3.008000
Begin onUpdate @ 3.008000
Begin reOrb calc @ 3.072000
Begin reOrb chunk 2 @ 3.072000
in onPartialUpdate @ 3.520000
redraw bitmap from previous clip region @ 3.520000
redefine clip region @ 3.520000
draw second hand @ 3.584000
onPartialUpdate complete @ 3.584000
Begin onUpdate @ 3.840000
Begin reOrb calc @ 3.840000
Begin reOrb chunk 3 @ 3.840000
in onPartialUpdate @ 4.288000
redraw bitmap from previous clip region @ 4.288000
redefine clip region @ 4.288000
draw second hand @ 4.288000
onPartialUpdate complete @ 4.352000
Begin onUpdate @ 4.800000
Begin reOrb calc @ 4.800000
Begin reOrb chunk 4 @ 4.864000
in onPartialUpdate @ 5.120000
redraw bitmap from previous clip region @ 5.120000
redefine clip region @ 5.120000
draw second hand @ 5.120000
onPartialUpdate complete @ 5.184000
Begin onUpdate @ 5.824000
Begin reOrb calc @ 5.824000
Complete reOrb calc @ 5.824000
Begin redraw @ 5.824000
Begin redraw Orb @ 5.888000
Begin redraw ticks @ 6.208000
Begin redraw date @ 6.784000
Begin redraw hands @ 6.784000
in onPartialUpdate @ 6.784000
redraw bitmap from previous clip region @ 6.848001
redefine clip region @ 6.848001
draw second hand @ 6.848001
onPartialUpdate complete @ 6.848001
Begin onUpdate @ 6.912000
in onPartialUpdate @ 6.912000
redraw bitmap from previous clip region @ 6.912000
redefine clip region @ 6.912000
draw second hand @ 6.976000
onPartialUpdate complete @ 6.976000
Begin onUpdate @ 7.808001
in onPartialUpdate @ 7.808001
redraw bitmap from previous clip region @ 7.808001
redefine clip region @ 7.872000
draw second hand @ 7.872000
onPartialUpdate complete @ 7.872000
Begin onUpdate @ 8.832001
in onPartialUpdate @ 8.832001
redraw bitmap from previous clip region @ 8.832001
redefine clip region @ 8.832001
draw second hand @ 8.832001
onPartialUpdate complete @ 8.896001
Begin onUpdate @ 8.960000
in onPartialUpdate @ 8.960000
redraw bitmap from previous clip region @ 8.960000
redefine clip region @ 8.960000
draw second hand @ 8.960000
onPartialUpdate complete @ 8.960000
Begin onUpdate @ 9.792001
in onPartialUpdate @ 9.856001
redraw bitmap from previous clip region @ 9.856001
redefine clip region @ 9.856001
draw second hand @ 9.856001
onPartialUpdate complete @ 9.856001
Begin onUpdate @ 10.816001
in onPartialUpdate @ 10.816001
redraw bitmap from previous clip region @ 10.816001
redefine clip region @ 10.880000
draw second hand @ 10.880000
onPartialUpdate complete @ 10.880000
Begin onUpdate @ 11.840000
in onPartialUpdate @ 11.840000
redraw bitmap from previous clip region @ 11.840000
redefine clip region @ 11.840000
draw second hand @ 11.840000
onPartialUpdate complete @ 11.904000
in onEnterSleep @ 11.904000
Begin onUpdate @ 11.968000
Begin redraw @ 11.968000
Begin redraw Orb @ 11.968000
Begin redraw ticks @ 12.288000
Begin redraw date @ 12.864000
Begin redraw hands @ 12.864000
in onPartialUpdate @ 12.928000
redraw bitmap from previous clip region @ 12.928000
redefine clip region @ 12.928000
draw second hand @ 12.928000
onPartialUpdate complete @ 12.928000
Begin onUpdate @ 12.928000
in onPartialUpdate @ 12.992001
redraw bitmap from previous clip region @ 12.992001
redefine clip region @ 12.992001
draw second hand @ 12.992001
onPartialUpdate complete @ 12.992001
Begin onUpdate @ 26.816002
Begin redraw @ 26.816002
Begin redraw hands @ 26.816002
in onPartialUpdate @ 26.880001
redraw bitmap from previous clip region @ 26.880001
redefine clip region @ 26.880001
draw second hand @ 26.880001
onPartialUpdate complete @ 26.880001
Begin onUpdate @ 86.784004
Begin redraw @ 86.976006
Begin redraw hands @ 86.976006
in onPartialUpdate @ 86.976006
redraw bitmap from previous clip region @ 86.976006
redefine clip region @ 86.976006
draw second hand @ 87.040001
onPartialUpdate complete @ 87.040001
in onExitSleep @ 119.296005
Begin onUpdate @ 119.296005
Begin redraw @ 119.296005
Begin redraw hands @ 119.296005
in onPartialUpdate @ 119.296005
redraw bitmap from previous clip region @ 119.360008
redefine clip region @ 119.360008
draw second hand @ 119.360008
onPartialUpdate complete @ 119.360008
Begin onUpdate @ 119.424004
in onPartialUpdate @ 119.424004
redraw bitmap from previous clip region @ 119.424004
redefine clip region @ 119.424004
draw second hand @ 119.424004
onPartialUpdate complete @ 119.488007
in onEnterSleep @ 119.552002

The fr 23x devices don't have onPartialUpdate.  No CIQ 1 devices have it.  It also doesn't have dc.setClip

Which is why I have this:

in initalize:
var thisDev = System.getDeviceSettings();
var devAPI = thisDev.monkeyVersion;
_api = devAPI[0] * 10000 + devAPI[1] * 100 + devAPI[2];
_partialUpdatesAllowed = WatchUi.WatchFace has :onPartialUpdate;

in onUpdate:
if (_api >= 20300) {
	dc.clearClip();
}

...later in onUpdate...
if (_partialUpdatesAllowed) {
	onPartialUpdate(dc);
}

onPartialUpdate is where the second hand gets drawn, so if it doesn't get called, no second hand. It would be nice if the FR had a second hand but onUpdate doesn't get called every second so that wouldn't work.

_api version checks get used in several places, like buffers, bitmaps, json data, storage, and other things that have been added or changed between versions.