Re: [PATCH] selftests/ftrace: Limit number of lines processed in 'trace'

[Shuah Khan <skhan@linuxfoundation.org>]

On 10/17/22 04:55, Naveen N. Rao wrote:
> On very large machines, ftracetest can seem to hang or otherwise take a
> very long time to complete individual tests. This can be attributed to
> statements that try to process the entire contents of 'trace'.
> 
> Limit the number of lines processed from 'trace' to resolve this. Apart
> from the change in test.d/functions to add TRACENL, this commit is the
> result of running the below command (and fixing some whitespace errors):
>    grep -l -R 'cat trace |' -- ./tools/testing/selftests/ftrace/test.d/ | \
> 	xargs -n 1 sed --in-place -e "s/cat trace |/head -\$\{TRACENL\} trace |/g"
> 
> Reported-by: Akanksha J N <akanksha@linux.vnet.ibm.com>
> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>

Please cc linux-kselftest list on all selftest patches.

thanks,
-- Shuah