Lightroom CC 2015.1.1: Face recognition slow and buggy

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  • Updated 3 years ago
I just upgraded to Lightroom CC 2015.1.1 (OS X) and the facial recognition is extremely slow and buggy. A couple of issues:

* whenever I open the people view for ~1000 photos it takes a fairly long time to open
* most actions take quite a while to take effect, and woe on you if you don't wait for it to take effect and do other actions meanwhile; wrong people get tagged, moved, etc
* Lightroom often gets itself into a state where nothing is working – if I switch between folders while still on the people view, nothing happens
* if I happen to tag someone with the wrong name, I have to a) re-tag the person 2-4 times before it has any effect and b) no matter which photo I actually retag it always retags the last one
* when tagging people, the name field often loses focus and thus creates havoc, because the letters of the name you were writing is now recognized as shortcuts...
* when opening a photo and then returning to the people view, the UI often doesn't redraw itself properly; the photos display, but not any of other UI
* if you misspell a person and then renames her/him, the old misspelled name exists in the typeahead find for quite a bit
* deleted people (misspellings etc) will continue to pop up as suggestions long after they are deleted
* the UI often redraws itself with one font, only to then re-redraw itself in another. Not a problem, it is just ugly and makes an already slow UI even slower

I've been looking forward to having face detection in Lightroom but this is one buggy feature which probably shouldn't have made it out to production... any ETA when an improved version will be out?

(My computer is a Macbook Pro, 3GHz i7, 8GB RAM.)
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Allan Beaufour

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Posted 4 years ago

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Walt Sorensen

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I'm also seeing major performance issues in the people view, and have been since LR 2015 introduced the feature. Removing or confirming a face region which results in a not responding state.

Watching the system performance I see 18% CPU use and very high disk uses.

Seems like the performance issues are mostly related to a lack if optimization or lack of GPGPU processing resulting in higher CPU use and disk related performance issues. (moving the catalog to a dedicated SSD did not help)

I have followed a recent performance recommendation to drastically increase the camera raw cache I've set my cache to the max 200GB (also on the dedicated SSD with the catalog)

IMO the performance issues are all in I/O with the disks, rather than speed it's in the simultaneous access of many files all reading information. It get's expensive to deal with limits on input/output operations can be performed per-second (IOPS)....(Multidisk Arrays – More disks in the array mean greater IOPS.) 

Here are my system specs:

 Lightroom version: CC  2015.6.1 [ 1083169 ]

License: Creative Cloud

Operating system: Windows 10

Version: 10.0

Application architecture: x64

System architecture: x64

Logical processor count: 8

Processor speed: 3.3 GHz

Built-in memory: 32717.7 MB

Real memory available to Lightroom: 32717.7 MB

Real memory used by Lightroom: 2913.0 MB (8.9%)

Virtual memory used by Lightroom: 2994.3 MB

Memory cache size: 6380.9 MB

Maximum thread count used by Camera Raw: 8

Camera Raw SIMD optimization: SSE2,AVX,AVX2

System DPI setting: 96 DPI

Desktop composition enabled: Yes

Displays: 1) 1920x1200, 2) 1920x1200, 3) 1600x1200

Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No


Graphics Processor Info:

GeForce GTX 1070/PCIe/SSE2


Check OpenGL support: Passed

Vendor: NVIDIA Corporation

Version: 3.3.0 NVIDIA 368.81

Renderer: GeForce GTX 1070/PCIe/SSE2

LanguageVersion: 3.30 NVIDIA via Cg compiler


Application folder: C:\Program Files\Adobe\Adobe Lightroom (SSD drive)

Library Path: X:\Pictures\Lightroom\LR4-CATALOG\LR4-CATALOG-2-2.lrcat (SSD drive)

Settings Folder: C:\Users\[user name]\AppData\Roaming\Adobe\Lightroom (SSD drive)

Images are on Two other internal HDD Drives (5 drives in the system 2xSSD 3xHDD)