To speed-up scans

The deadtime may be an issue for small sample times. In this case the user may consider the following points to speed-up scans:

Here are some results running CLI Online. Scans are performed from 0 to 0.1 by 0.001, sample time: 0.1, 1 counter. Motor: conversion 5000, slew 50000, acceleration 50000.

 
acceleration at 50000
set motor_logging on:     33.7 s
set motor_logging off:    14.1 s
set exp_to_mw_disable on: 13.7 s
Update (graphics): 5      13.6 s
acceleration to 500000:   12.4 s
acceleration to 1000000:  12.2 s
acceleration back to 500000
plus Petra-current        13.3 s
4 counters (no petra):    12.5
4 counters, MCA (2048):   24.5 s
back to 1 counter
sample time to 0.01       3.4 s 
with dummy motor:         1.1 s

We learn that the overhead time can most efficiently be reduced by disabling the motor logging. In addition we note that an increase of the acceleration can also make an effect.