Bug 462240 - Huge Memory drain on zoom
Summary: Huge Memory drain on zoom
Status: REPORTED
Alias: None
Product: okular
Classification: Applications
Component: general (show other bugs)
Version: 22.08.3
Platform: Manjaro Linux
: NOR normal
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-11-25 14:23 UTC by Kallinger
Modified: 2022-11-25 14:27 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Screenshot system monitor (11.89 KB, image/jpeg)
2022-11-25 14:23 UTC, Kallinger
Details
not the pdf file where i first noticed the problem but it also shows the same problem and is small enough to upload (689.50 KB, application/pdf)
2022-11-25 14:27 UTC, Kallinger
Details

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Description Kallinger 2022-11-25 14:23:20 UTC
Created attachment 154023 [details]
Screenshot system monitor

SUMMARY

When zooming into my PDF File i can notice a fast and very substantial increase in ram (see attachment) and CPU usage.
I'm using the "greedy" memory usage setting, but a friend could reproduce it with default settings, if not as severe. 




STEPS TO REPRODUCE
1. Open pdf (will supply the pdf used in attachment) 
2. zoom in (min 400%, the more the worse the result)
3. huge ram usage

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 Kallinger 2022-11-25 14:25:16 UTC
Sorry about that, pressed enter before i was done

Operating System: Manjaro Linux
KDE Plasma Version: 5.26.3
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.7
Kernel Version: 5.15.78-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1070/PCIe/SSE2
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7C37
System Version: 1.0
Comment 2 Kallinger 2022-11-25 14:27:57 UTC
Created attachment 154024 [details]
not the pdf file where i first noticed the problem but it also shows the same problem and is small enough to upload