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Reload this Page Major regression speed since koreader-kobo-v2020.08.1

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Old 03-12-2021, 04:20 PM   #1
gilali
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Unhappy Major regression speed since koreader-kobo-v2020.08.1
Hello,
I have a major speed issue with koreader. My device is Kobo libra.
Here is the description :
If changing pages with full test, speed is ok, less than a second.
But if the next page include an image, not even a big photo, juste a small web image, the speed slow down. About 5-6 seconds.

I remembered that koreader was not so slow in the past. As I don't read comics, I didn't really notice it directly. But now there it became really unbearable to me, even for the few images that appear. So I decided to find out since when it appeared:

v2020.01 : OK
v2020.06 : OK
v2020.08 : OK
v2020.08.1 : not OK
v2021.01.1 : not OK
v2020.09 : not OK
And all latest releases : not OK (I download the latest nightly release about every month)

The bug seems to be appeared since v2020.08.1.

There have been a lot of new features since this release. Do you think it will be difficult to find the specific feature that caused this issue and fix it, (or disable it) ?
I hope we will not be forced to choose beetween speed and features.
For now, i decided to downgrade to v2020.08.
I am ready for testing on my device.
Thanks for your help and thanks for reading.
Last edited by gilali; 03-12-2021 at 04:22 PM.
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Old 03-12-2021, 05:53 PM   #2
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Join the tests at the tail end of https://github.com/koreader/koreader/issues/7340 .

OTOH, I don't recall anything that would have been Libra-specific in that time period, but it's an interesting data point nonetheless (especially since it's so narrow), I'll double-check .
Last edited by NiLuJe; 03-12-2021 at 06:02 PM.
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Old 03-15-2021, 06:20 AM   #3
gilali
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Seeing the ticket, I have a big doubt. It's quite embarrassing. It looks strangely like my issue.

I will try to reproduce, and feed back.
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Old 03-15-2021, 12:12 PM   #4
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A (terrible, terrible) workaround has landed in today's nightly, FWIW .
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Old 03-15-2021, 07:45 PM   #5
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Originally Posted by NiLuJe View Post
A (terrible, terrible) workaround has landed in today's nightly, FWIW .
Can this terrible workaround be removed?
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Old 03-15-2021, 10:29 PM   #6
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The remedy is definitely *better* than the disease, and it's surgically applied only on Libras, so, no, not without manual code tweaks?

It's ugly and sad on a theoretical level, but effective on a practical one .

So, let me rephrase that: is there an actual reasoning behind the query?
Last edited by NiLuJe; 03-15-2021 at 10:56 PM.
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Old 03-16-2021, 06:46 PM   #7
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I feel better, I had not dreamed.
The bug is real since v2020.08.1. I joined demos in the github link
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Old 03-16-2021, 06:51 PM   #8
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@gilali, I suggest you try the current nightly version o KOReader and see how you get on with it as it may be fixed.
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Old 03-17-2021, 10:03 AM   #9
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For me, it's fixed
Thank you very much for the fix/patch/workaround or whaterever you want, because for me it's a real fix.
I was afraid to downgrade and loose all lastest features.
THANK YOU
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