1410984 - Bad performance on http://christmas.cleveradviser.com/

Status: RESOLVED WORKSFORME

(Firefox :: Untriaged, defect)

Description

[u548634]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Build ID: 20171023100252

Steps to reproduce:

1. Open this website: http://christmas.cleveradviser.com/

From https://www.reddit.com/r/firefox/comments/788dgk/firefox_specific_slowdown_comparison/


Actual results:

2. Big jumps between the snowflake animation frames, countdown sometimes hangs for a short time and then goes down several steps


Expected results:

3. Open website in Chrome
4. It performs like it should, snowflakes fall down smoothly and the counter clocks down in regular steps

Comment 1

[MarkRH]

With 57beta10 it performs the same for me as Chrome. Snowflake animation is smooth and clock looks normal.

How long does it take for the issues to take effect while watching it?

In Windows 7 Pro 64bit.
Direct2D: true
DirectWrite: true (6.2.9200.22164)
GPU #1
Active: Yes
Description: NVIDIA GeForce GTX 550 Ti
Vendor ID: 0x10de
Device ID: 0x1244
Driver Version: 9.18.13.4788
Driver Date: 3-13-2015
Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Subsys ID: 15543842
RAM: 1024

Comment 2

[u548634]

Ok, so I rebooted my machine in the mean time and now I can't reproduce it again, it performs just as good as Chrome.

Hm.

I'll let Firefox open for some time and then try again I guess?

It still occasionally skips a second in the countdown, but that could also be due to badly written JavaScript.


I will report back if it happens again, but you can probably close this for now.