XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Older bugs which are supposed to be fixed in 0.84. *** Please try to reproduce your bug and confirm the bug fix. ***

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masterjp
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XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by masterjp »

I often use the batch conversion with different folders and use the 'skip' output file setting, if the output file already exists.
Sometimes there are only a few new files in the source folder, which I want to convert.

The batch conversion process is much slower than in previous versions of XnViewMP (0.96, 0.97).
Sometimes it also look like XnViewMP is freezing. If I use the "overwrite" output file setting, it is much faster.

Here you can find my settings:
xnv2.png
xnv1.png
PC: Intel 8700k + Asus Z370-F + 16 GB RAM G.Skill
OS: Windows 10 Pro x64 (latest updates) | XN-View (latest stable version) |XnViewMP (latest stable version) | XnConvert (latest) | Adobe Photoshop Elements 2022 & Elements XXL 9
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xnview
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by xnview »

strange nothing has changed between 0.97.0 & 0.97.1
Pierre.
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masterjp
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by masterjp »

The first step, the analysing phase, is slow. The previous XnViewMP was much faster in this phase.
PC: Intel 8700k + Asus Z370-F + 16 GB RAM G.Skill
OS: Windows 10 Pro x64 (latest updates) | XN-View (latest stable version) |XnViewMP (latest stable version) | XnConvert (latest) | Adobe Photoshop Elements 2022 & Elements XXL 9
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xnview
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by xnview »

:bugconfirmed: Thanks to your detailed description I can reproduce the problem.
Relate to issue 1856
Pierre.
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masterjp
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by masterjp »

Fantastic. You found the reason for the performance problem. Thank you! :D
PC: Intel 8700k + Asus Z370-F + 16 GB RAM G.Skill
OS: Windows 10 Pro x64 (latest updates) | XN-View (latest stable version) |XnViewMP (latest stable version) | XnConvert (latest) | Adobe Photoshop Elements 2022 & Elements XXL 9
jprzybys
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by jprzybys »

Dear Pierre

I have similar problem on Windows 10 and XnViewMP 0.97 - batch conversion takes minutes vs. seconds. Could you help me understand how to solve it?

Example - I started batch resize of 17 jpg impages each around 1.5-2MB and it estimates the time to 40+ minutes!
batch_convert.PNG
Best regards
Jarek
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cday
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by cday »

xnview wrote: Mon Oct 19, 2020 3:19 pm :bugconfirmed: Thanks to your detailed description I can reproduce the problem.
Relate to issue 1856
Pierre has identified the cause and it will be fixed in the next version 0.97.2, when it is released probably sometime in the next few weeks... :D
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masterjp
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by masterjp »

You can use XnConvert from this website, which has the same batch conversion mode and functions.
It use multi-threading, too.
PC: Intel 8700k + Asus Z370-F + 16 GB RAM G.Skill
OS: Windows 10 Pro x64 (latest updates) | XN-View (latest stable version) |XnViewMP (latest stable version) | XnConvert (latest) | Adobe Photoshop Elements 2022 & Elements XXL 9
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xnview
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Re: XnViewMP 0.97.1 - batch conversion - slower than previous version 0.97

Post by xnview »

This problem is supposed to be fixed in XnView MP 0.98.0. Please check and confirm the bug fix here.
Pierre.