On Sun, Jan 3, 2021 at 7:05 AM Jiri Olsa <jo...@kernel.org> wrote: > > Adding support to detect daemon's config file changes > and re-read the configuration when that happens.
Hmm.. maybe some of the code in the previous commit can be moved here. Thanks, Namhyung > > Using inotify file descriptor pluged into the main > fdarray object for polling. > > Example: > > # cat ~/.perfconfig > [daemon] > base=/opt/perfdata > > [session-cycles] > run = -m 10M -e cycles --overwrite --switch-output -a > > Starting the daemon: > > # perf daemon start > > Check sessions: > > # perf daemon > [772262:daemon] base: /opt/perfdata > [772263:cycles] perf record -m 10M -e cycles --overwrite --switch-output -a > > Change '-m 10M' to '-m 20M', and check daemon log: > > # tail -f /opt/perfdata/output > [2021-01-02 20:31:41.234045] daemon started (pid 772262) > [2021-01-02 20:31:41.235072] reconfig: ruining session [cycles:772263]: -m > 10M -e cycles --overwrite --switch-output -a > [2021-01-02 20:32:08.310137] reconfig: session 'cycles' killed > [2021-01-02 20:32:08.310847] reconfig: ruining session [cycles:772338]: -m > 20M -e cycles --overwrite --switch-output -a > > And the session list: > > # perf daemon > [772262:daemon] base: /opt/perfdata > [772338:cycles] perf record -m 20M -e cycles --overwrite --switch-output -a > > Note the changed '-m 20M' option is in place. > > Signed-off-by: Jiri Olsa <jo...@kernel.org> > ---
