Steven Rostedt 567cd4da54 ring-buffer: User context bit recursion checking ... Using context bit recursion checking, we can help increase the performance of the ring buffer. Before this patch: # echo function > /debug/tracing/current_tracer # for i in `seq 10`; do ./hackbench 50; done Time: 10.285 Time: 10.407 Time: 10.243 Time: 10.372 Time: 10.380 Time: 10.198 Time: 10.272 Time: 10.354 Time: 10.248 Time: 10.253 (average: 10.3012) Now we have: # echo function > /debug/tracing/current_tracer # for i in `seq 10`; do ./hackbench 50; done Time: 9.712 Time: 9.824 Time: 9.861 Time: 9.827 Time: 9.962 Time: 9.905 Time: 9.886 Time: 10.088 Time: 9.861 Time: 9.834 (average: 9.876) a 4% savings! Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2013-01-22 23:38:03 -05:00
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blktrace.c	tracing: Use this_cpu_ptr per-cpu helper	2013-01-21 13:22:30 -05:00
ftrace.c	tracing: Avoid unnecessary multiple recursion checks	2013-01-22 23:38:01 -05:00
Kconfig	ftrace: Move ARCH_SUPPORTS_FTRACE_SAVE_REGS in Kconfig	2013-01-21 13:22:35 -05:00
Makefile	trace: Stop compiling in trace_clock unconditionally	2012-09-13 22:52:08 -04:00
power-traces.c	perf: Clean up power events by introducing new, more generic ones	2011-01-04 08:16:54 +01:00
ring_buffer_benchmark.c	tracing: Use NUMA allocation for per-cpu ring buffer pages	2011-06-14 22:04:39 -04:00
ring_buffer.c	ring-buffer: User context bit recursion checking	2013-01-22 23:38:03 -05:00
rpm-traces.c	PM / Runtime: Introduce trace points for tracing rpm_* functions	2011-09-27 22:53:27 +02:00
trace_branch.c	tracing: Cache comms only after an event occurred	2012-10-31 16:45:31 -04:00
trace_clock.c	tracing: Remove trace.h header from trace_clock.c	2013-01-22 12:06:56 -05:00
trace_entries.h	Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent	2012-03-24 08:19:09 +01:00
trace_event_perf.c	perf/core improvements and fixes:	2012-08-21 11:27:00 +02:00
trace_events_filter_test.h	tracing/filter: Add startup tests for events filter	2011-08-19 14:35:59 -04:00
trace_events_filter.c	tracing: Replace strict_strto* with kstrto*	2012-10-31 16:45:23 -04:00
trace_events.c	tracing: Remove the extra 4 bytes of padding in events	2013-01-21 21:05:41 -05:00
trace_export.c	tracing: Do not enable function event with enable	2012-05-10 15:55:43 -04:00
trace_functions_graph.c	tracing/fgraph: Add max_graph_depth to limit function_graph depth	2013-01-21 13:22:34 -05:00
trace_functions.c	ftrace: Use only the preempt version of function tracing	2013-01-22 23:38:02 -05:00
trace_irqsoff.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-12-13 12:00:02 -08:00
trace_kdb.c	kdb,ftdump: Remove reference to internal kdb include	2010-10-22 15:34:11 -05:00
trace_kprobe.c	tracing: Use irq_work for wake ups and remove *_nowake_*() functions	2012-11-02 10:21:52 -04:00
trace_mmiotrace.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
trace_nop.c
trace_output.c	tracing: Format non-nanosec times from tsc clock without a decimal point.	2012-11-13 15:48:40 -05:00
trace_output.h	tracing: Allow events to share their print functions	2010-05-14 14:20:32 -04:00
trace_printk.c	tracing: Add percpu buffers for trace_printk()	2012-04-23 21:15:55 -04:00
trace_probe.c	tracing: Replace strict_strto* with kstrto*	2012-10-31 16:45:23 -04:00
trace_probe.h	tracing: Provide trace events interface for uprobes	2012-05-07 14:30:17 +02:00
trace_sched_switch.c	tracing: Use irq_work for wake ups and remove *_nowake_*() functions	2012-11-02 10:21:52 -04:00
trace_sched_wakeup.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-12-13 12:00:02 -08:00
trace_selftest_dynamic.c	ftrace: Add self-tests for multiple function trace users	2011-05-18 19:24:51 -04:00
trace_selftest.c	ftrace: Fix function tracing recursion self test	2013-01-22 23:37:58 -05:00
trace_stack.c	tracing: Remove unneeded checks from the stack tracer	2012-11-19 15:07:13 -05:00
trace_stat.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
trace_stat.h	tracing/stat: Add stat_release() callback	2009-07-10 12:14:05 +02:00
trace_syscalls.c	tracing/syscalls: Make local functions static	2013-01-21 13:22:31 -05:00
trace_uprobe.c	tracing: Verify target file before registering a uprobe event	2013-01-21 13:22:31 -05:00
trace.c	tracing: Fix race with max_tr and changing tracers	2013-01-22 23:33:07 -05:00
trace.h	ring-buffer: User context bit recursion checking	2013-01-22 23:38:03 -05:00