Cpu Load Limits - Bosch DISBLAY DDU 7 Manual

Bosch Motorsport
The conditional combination is displayed in the DDU 7 condition channel win‐
dow.
8.8

CPU Load Limits

As all microprocessors, the DDU 7's processor has limited capacities. The current
load of the processor can be monitored using the channel "cpu_load". When
configuring your device, please make sure the used CPU load is in a save range
below 100 %.
Bosch recommends a maximum CPU load of 85 % (averaged). Exceeding this lim‐
it might result in DDU 7 not being able to fulfill its required measuring/logging/
display tasks or even in the DDU 7 crashing and rebooting.
Main factors influencing the CPU load are:
▪ Number and complexity of math channels
▪ Number and complexity of conditions
▪ CAN traffic on both CAN lines
▪ Display configuration, especially displaying pictures
▪ Logger configuration (total logging rate [kB/s], conditional measurement
rates)
To help respecting the limit of 85 % CPU load, the DDU 7 creates an error memo‐
ry entry. To trigger this error entry, the CPU load must exceed the limit for 5 mi‐
nutes without interruption.
When being confronted with this error memory entry (see 'Error info' in RaceCon)
or when being confronted with DDU 7 resets due to complex configuration set‐
ups, please consider reducing the demands on the DDU 7 adapting the influenc‐
ing factors mentioned above.
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