greybus: loopback: add ability to graph greybus latency

Browse source

This patch adds the ability to graph the latency of the overhead introduced
by the greybus stack in the roundtrip time AP->Module->AP.

Since this is a small number it is reported in nanoseconds, not
mircoseconds. This data can also be derived with tracepoints but it's being
provided in this format to export to CSV file more easily than with
tracepoints.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

...

This commit is contained in:

Bryan O'Donoghue 2015-08-17 00:55:02 +01:00 • committed by Greg Kroah-Hartman

parent 464dc8cbde

commit 2f8423046f

1 changed files with 39 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

46

drivers/staging/greybus/loopback.c

View file