docs: Note command dispatch benchmark needs desktop class machine

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-02-11 16:32:19 -05:00
parent 5ab6bcd1d7
commit 805e56008f
1 changed files with 5 additions and 1 deletions

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@ -420,7 +420,7 @@ communication mechanism. The test is run using the console.py tool
(described above). The following is cut-and-paste into the console.py
terminal window:
```
DELAY {clock+freq} get_uptime
DELAY {clock + 2*freq} get_uptime
FLOOD 100000 0.0 end_group
get_uptime
```
@ -429,6 +429,10 @@ When the test completes, determine the difference between the clocks
reported in the two "uptime" response messages. The total number of
commands per second is then `100000 * mcu_frequency / clock_diff`.
Note that this test may saturate the USB/CPU capacity of a Raspberry
Pi. The benchmarks below are with console.py running on a desktop
class machine.
| MCU | Rate | Build | Build compiler |
| ------------------- | ---- | -------- | ------------------- |
| pru (shared memory) | 5K | b161a69e | pru-gcc (GCC) 8.0.0 20170530 (experimental) |