linux-kernel - [PATCH 0/8] tracing: further shrinking trace events

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Date:	Mon, 24 May 2010 16:22:00 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/8] tracing: further shrinking trace events

patch 1-2: reduce per trace event foot print
patch 3-5: convert some trace events to DEFINE_EVENT
patch 6-8: do some cleanups and thus shrink text size a bit

Save ~5.7K in text and ~2.9K in data:

   text    data     bss     dec     hex filename
7018612 2034376 7251132 16304120         f8c7f8 vmlinux.o.orig
7012847 2031440 7251132 16295419         f8a5fb vmlinux.o

And save considerable memory allocated by trace_define_event().

---
 include/linux/syscalls.h           |    2 -
 include/trace/events/ext4.h        |   61 +++--------
 include/trace/events/sched.h       |   32 ++-----
 include/trace/events/timer.h       |   80 ++++++--------
 include/trace/syscall.h            |    1 -
 kernel/trace/trace.h               |    2 +
 kernel/trace/trace_events.c        |  209 ++++++++++++++++--------------------
 kernel/trace/trace_events_filter.c |   27 +++--
 kernel/trace/trace_export.c        |    8 +--
 kernel/trace/trace_kprobe.c        |   10 +--
 kernel/trace/trace_syscalls.c      |    7 +-
 11 files changed, 174 insertions(+), 265 deletions(-)
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