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how to measure fps? #22

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foralliance opened this issue Apr 25, 2018 · 1 comment
Open

how to measure fps? #22

foralliance opened this issue Apr 25, 2018 · 1 comment

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@foralliance
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foralliance commented Apr 25, 2018

There seem to be two ways of calculating FPS.

  1. via the 'time' model of caffe with batch_size = 1:
    build/tools/caffe time -model=models/VGGNet/VOC0712/refinedet_vgg16_320x320/deploy.prototxt -gpu=0

  2. get the time interval and estimate the FPS.
    for example, got the following lines after I run examples/ssd/score_ssd_pascal.py:

I0713 20:50:25.756376 117599 net.cpp:684] Ignoring source layer mbox_loss
I0713 20:51:32.472930 117599 solver.cpp:531] Test net output #0: detection_eval = 0.723217
I0713 20:51:32.473057 117599 solver.cpp:325] Optimization Done.

The total time spent on evaluating 4952 test images is about 67 seconds, and thus FPS = 4952 / 67 = 74.


Which method should be used to calculate FPS? Is there any other way?

@Angzz
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Angzz commented Jun 4, 2018

I think the dssd is largely memory inefficient, so I think the FPS should be very low.

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