linux-kernel - [PATCH 0/2] sched/debug: add sched_update_nr

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Message-Id: <20190903154340.860299-1-rkrcmar@redhat.com>
Date:   Tue,  3 Sep 2019 17:43:38 +0200
From:   Radim Krčmář <rkrcmar@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Jirka Hladký <jhladky@...hat.com>,
        Jiří Vozár <jvozar@...hat.com>,
        x86@...nel.org
Subject: [PATCH 0/2] sched/debug: add sched_update_nr_running tracepoint

Add a tracepoint for monitoring nr_running values, which is helpful in
discovering scheduling imbalances.

More information and most of the code is in [2/2], while [1/2] fixes a
build issue that popped up because CREATE_TRACE_POINTS is now defined
for several includes.

Cc: Ingo Molnar <mingo@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Jirka Hladký <jhladky@...hat.com>
Cc: Jiří Vozár <jvozar@...hat.com>
Cc: x86@...nel.org

Radim Krčmář (2):
  x86/mm/tlb: include tracepoints from tlb.c instead of mmu_context.h
  sched/debug: add sched_update_nr_running tracepoint

 arch/x86/include/asm/mmu_context.h |  2 --
 arch/x86/mm/tlb.c                  |  2 ++
 include/trace/events/sched.h       | 22 ++++++++++++++++++++++
 kernel/sched/core.c                |  7 ++-----
 kernel/sched/fair.c                |  2 --
 kernel/sched/sched.h               |  7 +++++++
 6 files changed, 33 insertions(+), 9 deletions(-)

-- 
2.23.0