Open
Bug 1436734
Opened 6 years ago
Updated 2 years ago
pdf with many images uses a lot of memory on scrolling
Categories
(Firefox :: PDF Viewer, defect, P3)
Firefox
PDF Viewer
Tracking
()
NEW
People
(Reporter: mayankleoboy1, Unassigned)
References
()
Details
(Keywords: memory-footprint, perf, Whiteboard: [pdfjs-performance])
Attachments
(5 files)
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 Build ID: 20180208103049 Steps to reproduce: 1. On normal nightly profile 2. Open the pdf attached 3. Start scrolling from page 97 (This is because there are lots of images in quick succession starting from this page) 4. Scroll till page 115 (From this point onward, images are very less) 4. Huge memory increase. Till 3.8GB Actual results: Huge memory increase Also OOM+crash https://crash-stats.mozilla.com/report/index/7564658b-4b49-4d96-9123-c071d0180208 Expected results: not so
Reporter | ||
Comment 1•6 years ago
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about:memory
Reporter | ||
Comment 2•6 years ago
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File is 12mb in size, so cant upload here. Heres the direst link: http://idav.ucdavis.edu/~dfalcant//downloads/dissertation.pdf
Reporter | ||
Updated•6 years ago
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Summary: pdf with many images will OOM on scrolling → pdf with many images will OOM on scrolling (about:memory and pdf link attached)
Reporter | ||
Comment 3•6 years ago
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This also happens on a new profile. Note: Memory decreases after you switch tabs and wait for some time. So appears to be a images related issue.
Component: Graphics → Layout: Images
Comment 4•6 years ago
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I tried to reproduce, the biggest I could get memory use for the content process as shown by activity monitor was about 1 GB. I did an about:memory quickly snapshot several times when I hit a peak memory usage and I never saw images taking much memory at all. The memory report attached also doesn't have much memory being used by images. My memory reports looked like this 747.83 MB (100.0%) -- explicit ├──386.42 MB (51.67%) -- workers/workers(pdf.js)/worker(../build/pdf.worker.js, 0x11e2d6000) │ ├──375.07 MB (50.15%) -- zone(0x12493a000) │ │ ├──341.63 MB (45.68%) -- compartment(web-worker) │ │ │ ├──334.50 MB (44.73%) -- classes │ │ │ │ ├──302.60 MB (40.46%) -- class(ArrayBuffer)/objects │ │ │ │ │ ├──302.42 MB (40.44%) ── malloc-heap/elements/normal │ │ │ │ │ └────0.17 MB (00.02%) ── gc-heap │ │ │ │ ├───24.07 MB (03.22%) ++ (12 tiny) │ │ │ │ └────7.84 MB (01.05%) ++ class(Array)/objects │ │ │ └────7.13 MB (00.95%) ++ (8 tiny) │ │ ├───16.85 MB (02.25%) ── unused-gc-things │ │ └───16.59 MB (02.22%) ++ (14 tiny) │ ├────8.51 MB (01.14%) ++ runtime │ └────2.84 MB (00.38%) ++ (2 tiny) ├──212.06 MB (28.36%) -- window-objects/top(http://idav.ucdavis.edu/~dfalcant//downloads/dissertation.pdf, id=8589934593) │ ├──204.49 MB (27.34%) -- active/window(http://idav.ucdavis.edu/~dfalcant//downloads/dissertation.pdf) │ │ ├──201.10 MB (26.89%) -- js-compartment(resource://pdf.js/web/viewer.html, http://idav.ucdavis.edu/~dfalcant//downloads/dissertation.pdf) │ │ │ ├──198.18 MB (26.50%) -- classes │ │ │ │ ├──182.75 MB (24.44%) -- class(ArrayBuffer)/objects │ │ │ │ │ ├──182.28 MB (24.37%) ── malloc-heap/elements/normal │ │ │ │ │ └────0.47 MB (00.06%) ── gc-heap │ │ │ │ ├───11.04 MB (01.48%) ++ class(Array)/objects │ │ │ │ └────4.39 MB (00.59%) ++ (12 tiny) So it looks like the right component is for the pdf.js viewer.
Component: Layout: Images → PDF Viewer
Product: Core → Firefox
Comment 5•6 years ago
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Comment 6•6 years ago
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Comment 7•6 years ago
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It seems I can reproduce this bug, although not a OOM crash. See the attached screenshots for memory and CPU usage. The first half is while scrolling, the second after.
Updated•6 years ago
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Status: UNCONFIRMED → NEW
Ever confirmed: true
Updated•6 years ago
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Priority: -- → P3
URL no longer available, so here is a new link: https://web.archive.org/web/20180820121927/idav.ucdavis.edu/~dfalcant//downloads/dissertation.pdf
Updated•2 years ago
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Severity: normal → S4
Keywords: memory-footprint,
perf
Summary: pdf with many images will OOM on scrolling (about:memory and pdf link attached) → pdf with many images uses a lot of memory on scrolling
Whiteboard: [pdfjs-performance]
Reporter | ||
Comment 9•2 years ago
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Description
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