On Mon, Nov 29, 2021 at 12:07:38PM +0100, Daniel Bristot de Oliveira wrote: > The rtla(1) is a meta-tool that includes a set of commands that > aims to analyze the real-time properties of Linux. But instead of > testing Linux as a black box, rtla leverages kernel tracing > capabilities to provide precise information about the properties > and root causes of unexpected results. > > To start, it presents an interface to the osnoise and timerlat tracers. > In the future, it will also serve as home to the rtsl [1] and other > latency/noise tracers. > > If you just want to run it, you can download the tarball here: > - https://bristot.me/files/rtla/tarball/rtla-0.4.tar.bz2 > > To compile rtla on fedora you need: > $ git clone git://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git > $ cd libtraceevent/ > $ make > $ sudo make install > $ cd .. > $ git clone git://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git > $ cd libtracefs/ > $ make > $ sudo make install > $ cd .. > $ sudo dnf install python3-docutils procps-devel > $ cd $rtla_src > $ make > $ sudo make install Set osnoise/x to DEADLINE, the return is not success. see: tao@geo ~/opensource/rtla-0.4 $ sudo rtla osnoise top -P d:100us:1ms -c 0-3 -r 900000 -d 1M -q boost_with_deadline failed to boost pid 4766: Operation not permitted Failed to set sched parameters top shows: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 4773 root 20 0 0 0 0 R 89.4 0.0 2:06.88 osnoise/0 4776 root 20 0 0 0 0 R 89.4 0.0 2:06.88 osnoise/3 4774 root 20 0 0 0 0 R 89.0 0.0 2:06.88 osnoise/1 4775 root 20 0 0 0 0 R 88.7 0.0 2:06.69 osnoise/2 t
