Issue 537 in pdfium: Performance of this pdf is bad

[arnold.n…@radialsg.com via Monorail]

Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 537 by arnold.n...@radialsg.com: Performance of this pdf is bad
https://bugs.chromium.org/p/pdfium/issues/detail?id=537

1 Open the pdf
2 this takes some time (still acceptable)
3 scroll down a bit
4 this takes the same time as opening it (or even longer)
5 goto step 3

Every time you scroll or zoom a bit it takes a long time to update the screen.

The document seems to have a great number of layers.





Attachments:
Q16BC-1-51-0-01101-01.pdf 11.3 MB

--
You received this message because:
1. The project was configured to send all issue notifications to this address

You may adjust your notification preferences at:
https://bugs.chromium.org/hosting/settings

[thes…@chromium.org via Monorail]

Comment #1 on issue 537 by the...@chromium.org: Performance of this pdf is bad
https://bugs.chromium.org/p/pdfium/issues/detail?id=537#c1

It sounds like you are complaining about the Chrome PDF Viewer, as pdfium is a library and has no visible UI. Can you try Chrome Canary and see if behaves better?

[dsincl… via monorail]

Updates:
Labels: Performance
Status: Accepted

Comment #2 on issue 537 by dsin...@chromium.org: Performance of this pdf is bad
https://bugs.chromium.org/p/pdfium/issues/detail?id=537#c2

The PDF renders very slowly. This seems like it's a PDFium issue, not a chrome issue. (The scrolling will be slow as we re-raster the page which takes forever).

[thes… via monorail]

Comment #3 on issue 537 by the...@chromium.org: Performance of this pdf is bad
https://bugs.chromium.org/p/pdfium/issues/detail?id=537#c3

Takes about 2 minutes on my workstation in a debug build and 35 seconds in a release build. Okular also spends about 1 minute to fully render the PDF. However, once it finishes rendering, the scrolling is fast.