Messages in this thread | | | Date | Mon, 22 Feb 2016 16:26:49 -0500 | From | Steven Rostedt <> | Subject | [PATCH 0/4] sched: Display deadline bandwidth and other SCHED_DEBUG clean up |
| |
[ Nothing different since my v2 I posted, except hopefully people will look at it this time :-) I also removed the RFC ]
I'm starting to play with SCHED_DEADLINE a bit and I'm able to cause a bandwidth "leak". Then I realized there's no way to examine what bandwidths are enabled on which CPUs. I added the bandwith ratios to the /proc/sched_debug file.
I will be posting the SCHED_DEADLINE issue in a separate thread.
# grep dl /proc/sched_debug dl_rq[0]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[1]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 104857 dl_rq[2]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[3]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[4]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[5]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[6]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[7]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0
Before adding this code, I also realized there was a bit of SCHED_DEBUG code in the kernel/sched/core.c file, and decided to move that to kernel/sched/debug.c to clean the core.c file up a bit. Those patches are mostly orthognal to the deadline_bw file, but decided to group them together here.
Steven Rostedt (Red Hat) (4): sched: Move sched_feature file setup into debug.c sched: Move sched_domain_sysctl to debug.c sched: Add bandwidth ratio to /proc/sched_debug tracing: Add __print_ns_to_secs() and __print_ns_without_secs() helpers
---- include/trace/trace_events.h | 25 ++++ kernel/sched/core.c | 311 ------------------------------------------ kernel/sched/debug.c | 313 +++++++++++++++++++++++++++++++++++++++++++ kernel/sched/sched.h | 13 ++ 4 files changed, 351 insertions(+), 311 deletions(-)
| |