Blaise Alleyne

IceWeasel gets destroyed by Chromium in hardware acceleration stress test...

Blaise Alleyne at

I try to use IceWeasel more than Chromium, but often find myself using Chromium more because it feels faster. I thought it was because I had too much stuff open in IceWeasel or because it gradually uses more RAM over time, but today I was getting really frustrated when pressing edit on a DokuWiki page was causing a CPU to churn at 100% for 15-20 seconds. I know I have old hardware (ThinkPad X60 with SSD and 3GB RAM), but... Chromium doesn't blink doing the same things.

Then, the results from this hardware acceleration stress test were insane:

  • IceWeasel: 2 FPS
  • IceWeasel (safe mode): 3 FPS
  • Chromium: 60+ FPS (the limit of the test)

Something is seriously wrong... I'm hoping it's something I can fix...

Claes Wallin (韋嘉誠), Claes Wallin (韋嘉誠), Efraim Flashner, Efraim Flashner shared this.

Show all 5 replies
I tried this hardware acceleration stress test and the results were sane:
  • IceWeasel: 60+ FPS
  • Chromium: 60+ FPS

jrobertson at 2015-12-28T16:50:31Z

Claes Wallin (韋嘉誠), Blaise Alleyne likes this.

I do not notice that behavior, and I use both. Platform or version may be relevant. :-(

For me they run comparably so I mostly use Iceweasel.

Douglas Perkins at 2015-12-28T22:30:49Z

Thanks all. There's gotta be something with my setup for the performance to be so wildly different... I'll keep digging.

Blaise Alleyne at 2015-12-29T02:58:46Z

For posterity, fiddling around with information from here and here, I managed to get IceWeasel to perform at 25-30 FPS by forcing Option "AccelMethod" "sna" in my xorg.conf.

Also noticed IceWeasel was a lot snappier on a fresh user account, so probably need to close a ton of the tabs I have open (doesn't affect FPS performance though once IceWeasel's all loaded).

Blaise Alleyne at 2016-01-04T07:48:31Z