1026670 - nextchessmove.com consuming high cpu usage

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0 (Beta/Release)
Build ID: 20140605174243

Steps to reproduce:

Load some url:

https://nextchessmove.com/?fen=2r3r1%2F7p%2FQR4pk%2F3p3b%2F2q1p2P%2F1pP3P1%2F5P2%2F2R2NK1+w+-+-+0+1&flipped=false


Actual results:

High cpu usage, sometimes you can notive pieces out of the board blinking.


Expected results:

Stay quiet.

Comment 1

[Alice0775 White]

Setting image.high_quality_downscaling.enabled = false fixes the CPU problem

Comment 2

[Timothy Nikkel (:tnikkel)]

The chess pieces are draw at two different sizes, both of which aren't the original image size. So this is the same "resize to size 1, resize to size 2, resize to size 1, ..." loop we suffer from that Seth is working on fixing.

Comment 3

[Nicholas Nethercote [inactive]]

(In reply to Timothy Nikkel (:tn) from comment #2)
> The chess pieces are draw at two different sizes, both of which aren't the
> original image size. So this is the same "resize to size 1, resize to size
> 2, resize to size 1, ..." loop we suffer from that Seth is working on fixing.

Seth, have you gotten any closer to fixing this?

Comment 4

[Timothy Nikkel (:tnikkel)]

That bug should be fixed now. We should retest this.

Comment 5

[Seth Fowler [:seth] [:s2h]]

(In reply to Timothy Nikkel (:tn) from comment #4)
> That bug should be fixed now. We should retest this.

It looks fixed to me; I can't reproduce the high CPU usage or the blinking. Seems like this was resolved by classic bug 1060869.

Comment 6

[Nicholas Nethercote [inactive]]

Thank you for the confirmation.