Re: [PATCH] kselftests: ftrace: limit the executing time by reading from cached trace

On Wed, 20 Oct 2021 11:20:27 +0900 Masami Hiramatsu mhiramat@kernel.org wrote:

Hmm, by the way, shouldn't we set this feature by default? There are many "cat trace | grep ..." style test code in ftracetest just for checking whether the event is recorded. At least for the ftracetest, it should be set unless the testcase is explicitly disable it.

For testing, sure.

I was criticized by the BPF folks about tracing stopping when the trace file was being read. So for normal operations, it doesn't pause, because that "confuses" people (so I am told).

-- Steve