On Wed, 2024-05-22 at 19:11 +0300, Jarkko Sakkinen wrote: > On Wed May 22, 2024 at 5:58 PM EEST, Vitor Soares wrote: > > I did run with ftrace, but need some more time to go through it. > > > > Here the step I did: > > kernel config: > > CONFIG_FUNCTION_TRACER > > CONFIG_FUNCTION_GRAPH_TRACER > > > > ftrace: > > # set filters > > echo tpm* > set_ftrace_filter > > > > # set tracer > > echo function_graph > current_tracer > > > > # take the sample > > echo 1 > tracing_on; time modprobe tpm_tis_spi; echo 0 > tracing_on > > > > regards, > > Vitor Soares > > I'm now compiling distro kernel (OpenSUSE) for NUC7 with v6.10 contents. > > After I have that setup, I'll develop a perf test either with perf or > bpftrace. I'll come back with the possible CONFIG_* that should be in > place in your kernel. Might take up until next week as I have some > conference stuff to prepare but I try to have stuff ready early next > week. > > No need to rush with this as long as possible patches go to rc2 or rc3. > Let's do a proper analysis instead. > > In the meantime you could check if you get perf and/or bpftrace to > your image that use to boot up your device. Preferably both but > please inform about this. > I already have perf running, for the bpftrace I might not be able to help. Regards, Vitor Soares > Fair enough? > > BR, Jarkko
