Input lag AB test

Everything about latency. Tips, testing methods, mouse lag, display lag, game engine lag, network lag, whole input lag chain, VSYNC OFF vs VSYNC ON, and more! Input Lag Articles on Blur Busters.
flood
Posts: 929
Joined: 21 Dec 2013, 01:25

Re: Input lag AB test

Post by flood » 18 Aug 2014, 23:06

got bored and tried this again.

just got 17/25 for 10ms

if you add up my three results (16,15,17) you get 48/75

that's a p-value of 0.01 !!!

anyway a situation where 10ms input lag for sure affects performance is in csgo, dust2, awping enemies running across mid double doors from t spawn. you need about a reaction time around 0.15 to 0.17s to kill them as they cross the gap. and for that, an additional 10ms of input lag can definitely lead to missed shots.

oblistar
Posts: 1
Joined: 05 Nov 2014, 19:37

Re: Input lag AB test

Post by oblistar » 05 Nov 2014, 19:45

First two tries just now,

50ms: 25/25
5ms: 18/25

This is a fantastic app. damn. I play a rhythm game called 'osu' and despise input lag with a burning passion. Placebo my azz. ty for this ;)

flood
Posts: 929
Joined: 21 Dec 2013, 01:25

Re: Input lag AB test

Post by flood » 05 Nov 2014, 22:53

oblistar wrote: 5ms: 18/25
uwotm8

can u try at 10ms?

mokuh
Posts: 1
Joined: 11 Dec 2014, 03:06

Re: Input lag AB test

Post by mokuh » 11 Dec 2014, 03:10

50 ms : 25/25
8 ms : 25/25
4 ms : 14/25

So as I expected, I'm very sensitive to input lag until below 8 ms.

shish_KEbOB
Posts: 8
Joined: 26 Jan 2015, 15:49

Re: Input lag AB test

Post by shish_KEbOB » 27 Jan 2015, 10:26

Nifty little program, thanks!
My suggestion would be to add geometric shapes in the background to have some reference point.
I find that doing the same movement repeatedly loses effectiveness with repetition.
Your brain just gets used to it and you can't tell the difference anymore.
I find myself combining all sorts of movements: circles, eights, squares, crosses, Xs, triangles, moving from side to side of the splitting bar, etc...
Some shapes so that one can trace the perimeter in the fastest/most accurate way would make the test more effective in my opinion.

Aibo999
Posts: 7
Joined: 15 Feb 2015, 09:45

Re: Input lag AB test

Post by Aibo999 » 15 Feb 2015, 09:57

50 ms : 25/25
25 ms : 25/25
4 ms : 18/25

Samsung SyncMaster 2032BW 70Hz

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lexlazootin
Posts: 1251
Joined: 16 Dec 2014, 02:57

Re: Input lag AB test

Post by lexlazootin » 20 Feb 2015, 00:32

I really want to try this but my version of the program is v-syncing on windows 8. is there something I should be doing?

I don't think getting 18/25 is enough to determine you can tell a difference. you could easily just click one side and every (Something) of a person would get it too easily. (If someone could tell me how to do the math of figuring out how many people would get ATLEAST 18/25 please tell me)

EDIT: NM I can force it off with amd drivers... silly me.

MaximilianKohler
Posts: 31
Joined: 30 May 2014, 15:45

Re: Input lag AB test

Post by MaximilianKohler » 07 Apr 2015, 18:23

lex how did you force it off with AMD?. In CCC I put it to "always off", but the FPS stays the same as my hz.

Sparky
Posts: 682
Joined: 15 Jan 2014, 02:29

Re: Input lag AB test

Post by Sparky » 07 Apr 2015, 20:02

MaximilianKohler wrote:lex how did you force it off with AMD?. In CCC I put it to "always off", but the FPS stays the same as my hz.
I had to use radeonpro to force it off.

User avatar
lexlazootin
Posts: 1251
Joined: 16 Dec 2014, 02:57

Re: Input lag AB test

Post by lexlazootin » 08 Apr 2015, 05:32

MaximilianKohler wrote:lex how did you force it off with AMD?. In CCC I put it to "always off", but the FPS stays the same as my hz.
yea idk, it's kinda fooked. i had to just keep changing setttings till it worked... it's pretty random, i would edit the program and turn on and off the vsync and do the same to my driver. eventually it would work :P

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