linux-kernel - [for-next][PATCH 0/8] tracing: Some micro optimizations

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Date:   Tue, 29 Nov 2016 10:06:14 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [for-next][PATCH 0/8] tracing: Some micro optimizations


Andi Kleen pointed out a trace that showed lots of functions being
called in the trace event hot path. These functions would help to
be inlined. More needs to be done, but this is just a start.

  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
for-next

Head SHA1: 38e11df134297ea3860c7aad8263ece27db01308


Steven Rostedt (Red Hat) (8):
      tracing: Create a always_inlined __trace_buffer_lock_reserve()
      ring-buffer: Make rb_reserve_next_event() always inlined
      ring-buffer: Always inline rb_event_data()
      tracing: Make tracepoint_printk a static_key
      tracing: Make __buffer_unlock_commit() always_inline
      ring-buffer: Force inline of hotpath helper functions
      ring-buffer: Froce rb_update_write_stamp() to be inlined
      ring-buffer: Force rb_end_commit() and rb_set_commit_to_write() inline

----
 include/linux/ftrace.h               |   4 +
 kernel/sysctl.c                      |   2 +-
 kernel/trace/ring_buffer.c           |  28 ++---
 kernel/trace/trace.c                 | 206 ++++++++++++++++++++++++++---------
 kernel/trace/trace.h                 |   4 +-
 kernel/trace/trace_branch.c          |   2 +-
 kernel/trace/trace_events.c          |  40 -------
 kernel/trace/trace_functions_graph.c |   4 +-
 kernel/trace/trace_hwlat.c           |   2 +-
 9 files changed, 177 insertions(+), 115 deletions(-)