[0/5] osnoise: Support multiple instances

Message

Daniel Bristot de Oliveira Aug. 12, 2021, 1:57 p.m. UTC

Currently, osnoise and timerlat run only on a single instance. To reduce
this limitation, this series adds support for parallel instances of the
same tracer. That is, it is possible to run two instances of osnoise
tracer with different configurations. For example, one for the tracer
output and another for a set of tracepoints.

Daniel Bristot de Oliveira (5):
  trace/osnoise: Do not follow tracing_cpumask
  trace/osnoise: Split workload start from the tracer start
  trace/osnoise: Use start/stop_per_cpu_kthreads() on
    osnoise_cpus_write()
  trace/osnoise: Support a list of trace_array *tr
  trace/osnoise: Allow multiple instances of the same tracer

 kernel/trace/trace_osnoise.c | 410 ++++++++++++++++++++++++-----------
 1 file changed, 289 insertions(+), 121 deletions(-)