Buttons, keys and locks · Comparison

Button and key latency

Injected left button and 'a' key, timed on the PC's USB bus from the command to the clone's report. The mouse was still, moving every millisecond, or moving while the box also injected a move every millisecond.

Left button latency, p50

Stock km.leftMedius INJECT

Load and edge	Stock`km.left`	Medius`INJECT`	Result
Mouse still, press	0.723 ms	0.803 ms	Stock
Mouse still, release	0.867 ms	0.725 ms	Medius
Mouse moving, press	8.56 ms	1.39 ms	Medius
Mouse moving, release	8.59 ms	1.31 ms	Medius
Mouse moving, box injecting, press	8.63 ms	1.02 ms	Medius
Mouse moving, box injecting, release	8.68 ms	0.867 ms	Medius

Key latency, p50

Stock km.downMedius INJECT

Load and edge	Stock`km.down`	Medius`INJECT`	Result
Mouse still, down	1.24 ms	0.862 ms	Medius
Mouse still, up	1.23 ms	0.867 ms	Medius
Mouse moving, down	1.26 ms	0.974 ms	Medius
Mouse moving, up	1.3 ms	0.978 ms	Medius
Mouse moving, box injecting, down	1.67 ms	0.972 ms	Medius
Mouse moving, box injecting, up	1.86 ms	0.783 ms	Medius

Native and injected presses

A native key or button held while each box injected another key, or injected a release or click of that same button.

Native press after the injection

Case	Stock	Medius	Result
Native Q held, box injects A	Still held	Still held	Equal
Native left held, box injects a left release	Still held	Still held	Equal
Native left held, box injects a left click	Still held	Still held	Equal

Locks

Each box held a lock for 10 s against native motion and clicks. On the PC's USB bus, a lock is timed from the command to the last native input through, an unlock to the first one back.

Native input reaching the PC

Lock	Stock	Medius	Result
X locked, box idle	None	None	Equal
X locked, box injecting Y at 1 kHz	None	None	Equal
X locked, box injecting Y at 125 Hz	None	None	Equal
X locked, box injecting -1 X at 1 kHz	None	None	Equal
Left button locked, box idle	None	None	Equal
Left button locked, box injecting Y at 1 kHz	None	None	Equal

Injected press reaching the PC

Lock	Stock	Medius	Result
Left button locked	Arrives	Arrives	Equal

Lock on X taking effect, p50

Stock km.lock_mxMedius LOCK

Lock	Stock`km.lock_mx`	Medius`LOCK`	Result
Native X motion every millisecond	3.33-5.62 ms	0.333-0.471 ms	Medius

Lock on X lifting, p50

Stock km.lock_mxMedius LOCK

Lock	Stock`km.lock_mx`	Medius`LOCK`	Result
Native X motion every millisecond	4.33-6.41 ms	1.20-1.29 ms	Medius

Native input still reaching the PC after the lock, p50

Lock	Stock	Medius	Result
Y, moving every millisecond	6.45 ms	0.336 ms	Medius
Positive Y only, moving +1 and -1	5.9 ms	0.363 ms	Medius
Wheel, every 10 ms	0 ms	0 ms	Equal
Right button, 50 ms clicksMedius lets a press already under way finish before the lock blocks the button. The PC never gets a release the real device didn't report	0 ms	99.3 ms	Stock
Key 'a', 50 ms taps	0 ms	0 ms	Equal
Right button, heldMedius lets a press already under way finish before the lock blocks the button. The PC never gets a release the real device didn't report	7.38 ms	99.4 ms	Stock
Key 'a', held	1.01 ms	0 ms	Medius

Native input back after the unlock, p50

Lock	Stock	Medius	Result
Y, moving every millisecond	7.21 ms	1.51 ms	Medius
Positive Y only, moving +1 and -1	7.61 ms	1.5 ms	Medius
Wheel, every 10 ms	2.89 ms	8.02 ms	Stock
Right button, 50 ms clicks	14.9 ms	0.729 ms	Medius
Key 'a', 50 ms taps	37.1 ms	0.818 ms	Medius
Right button, held	8.78 ms	0.586 ms	Medius
Key 'a', held	1.96 ms	1.32 ms	Medius

Injected counts arriving while a lock is held

Stock km.moveMedius MOVE

Lock and injection	Stock`km.move`	Medius`MOVE`	Result
X locked, Y injected at 1 kHz	9,999/10,000	10,000/10,000	Medius
X locked, Y injected at 125 Hz	1,242/1,250	1,250/1,250	Medius
X locked, -1 X injected at 1 kHz	9,994/10,000	10,000/10,000	Medius
Left button locked, Y injected at 1 kHz	9,989/10,000	10,000/10,000	Medius

Clicks and typing timed by the box

Ten 50 ms clicks and a 30-character string timed by the box (stock's km.click and km.string, a Medius clip), against the same clicks timed by the PC. Read off the PC's USB bus, five runs each.

Shortest 50 ms click hold

Stock km.clickMedius CLIP

Timed by	Stock`km.click`	Medius`CLIP`
The box	50 ms	49.7-50.0 ms
The PC	50 ms	49.9-50.0 ms

Longest 50 ms click hold

Stock km.clickMedius CLIP

Timed by	Stock`km.click`	Medius`CLIP`
The box	50.0-50.1 ms	50.0-50.1 ms
The PC	50.0-50.1 ms	50.0-50.1 ms

30 characters the box typed

Stock km.stringMedius CLIP

String	Stock`km.string`	Medius`CLIP`	Result
the quick brown fox 0123456789, 5 runs	Exact	Exact	Equal

Time to type 30 characters

Stock km.stringMedius CLIP

String	Stock`km.string`	Medius`CLIP`
First key down to last key up	2,813-2,982 ms	57.9-59.0 ms

30 characters sent by the PC as key presses back to back

Stock km.down, km.upMedius INJECT

String	Stock`km.down, km.up`	Medius`INJECT`	Result
the quick brown fox 0123456789	Characters lost	Exact	Medius