Cpu Load Limits - Bosch C 80 Manual

Bosch Motorsport
The channel names depend on the name used for the module, in this example GPS_Trig-
ger. Each trigger has a distance and a trigger channel with the abbreviation m for macro
or p for parameter based. The trigger channel will be set to 1, when the lowest distance to
the trigger point is detected. For the macro-based trigger, the stored latitude and longit-
ude values can be seen with the channels.
Measurement label
name_lat
name_long
name_ptrig_1..10
name_pdist_1..10
name_mtrig_1..10
name_mdist_1..10
name_macro_lat_1..10
name_macro_long_1..10
Example:

9.8 CPU Load Limits

As all microprocessors, the two processors of the C 80 have limited capacities. The current
load of the processors can be monitored using the channel "cpu_load_001" or
"cpu_load_002". 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 limit might
result in the C 80 not being able to fulfill its required measuring/logging/display tasks or
even in 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
– Logger configuration (total logging rate [kB/s], conditional measurement rates)
To help respecting the limit of 85 % CPU load, the C 80 creates an error memory entry. To
trigger this error entry, the CPU load must exceed the limit for 5 minutes without interrup-
tion.
When being confronted with this error memory entry (see 'Error info' in RaceCon) or when
being confronted with C 80 resets due to complex configuration setups, please consider
reducing the demands on the C 80 adapting the influencing factors mentioned above.
Function
interpolated gps latitude
interpolated gps longitude
trigger output of parameter based trigger (n)
distance to trigger of parameter based trigger (n)
trigger output of macro based trigger (n)
distance to trigger of parameter based trigger (n)
stored latitude for macro based trigger (n)
stored longitude for macro based trigger (n)
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