This is something I created a while back, never really did much more with it and it just collected dust. So I'm sharing it here under the zlib license.

What it does is measure the speed of your mouse. It is highly advised you have a multi-core CPU as the program actually does the mouse testing and reporting in a separate thread, so for the most accurate results the OS should have the opportunity to put that thread on it's own core. You should see a core pretty much maxed due to this, it's not really using 100%, it's more like 99.99% due to the intense timing needed. You could run the test on a single core CPU but any other system activity would most likely affect the results to some extent.

This is how you perform the test. Run the program. (obviously) Then move the mouse around on your screen as fast as you possible can. (your friends may look at you oddly for "spazing out" though... *laughs*) It shows the current speed and max achieved so far in square pixels.

To test the accuracy of your mouse, Hz/polling setting and so on, try to move the mouse in tiny tiny circles. If it's precise enough then you should be able to maintain a steady speed of 1 Pixels².

As for max speed well, in my case I can reach peaks over 10000 Pixels² which is... well I have no idea what really, it's just a relative measurement I came up with, but I'm pretty sure it equals several Gs of force on the poor mouse and my muscles ache afterward as well (ref. the earlier spazing out comment).

Another thing to test is trying to make large but smooth and consistent circles. The Pixels² value should remain very low but very steady.

You can also test the calculated report rate, just move the mouse in a large circle quickly. If it peaks at 1000Hz then that is the maximum of any current mice/hardware. If it peaks at 500Hz then your mouse is programmed/driver is set to 500Hz report rate, or it is the maximum report rate of the mouse.

All these things are signs of a good mouse (and settings) that let you have high precision high speed/movement and steady/consistent movement. I created this as an alternative to "turn table" testing setups that most people are not able to build to test their mice.

This tiny program is intended to compare mice against each other on the same system, the numbers only make sense on the test system and not against other systems.

PS! Acceleration settings in windows, as well as polling rate and such will affect the accuracy of the mouse reporting.

Download EmSai Mousespeed.zip, or EmSai Mousespeed.zip.torrent webseed, (112KB, x86 and x64 versions, full project source included)