Steven Rostedt c8d771835e tracing: export stats of ring buffers to userspace ... This patch adds stats to the ftrace ring buffers: # cat /debugfs/tracing/per_cpu/cpu0/stats entries: 42360 overrun: 30509326 commit overrun: 0 nmi dropped: 0 Where entries are the total number of data entries in the buffer. overrun is the number of entries not consumed and were overwritten by the writer. commit overrun is the number of entries dropped due to nested writers wrapping the buffer before the initial writer finished the commit. nmi dropped is the number of entries dropped due to the ring buffer lock being held when an nmi was going to write to the ring buffer. Note, this field will be meaningless and will go away when the ring buffer becomes lockless. [ Impact: let userspace know what is happening in the ring buffers ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2009-05-05 13:52:02 -04:00
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blktrace.c	blktrace: fix context-info when mixed-using blk tracer and trace events	2009-04-16 10:11:01 +02:00
ftrace.c	ftrace: use module notifier for function tracer	2009-04-17 16:59:15 +02:00
Kconfig	tracing: rename EVENT_TRACER config to ENABLE_EVENT_TRACING	2009-04-20 17:55:35 +02:00
kmemtrace.c	tracing/filters: use ring_buffer_discard_commit() in filter_check_discard()	2009-04-14 00:00:56 +02:00
Makefile	tracing/events: move the ftrace event tracing code to core	2009-04-14 12:57:59 -04:00
ring_buffer.c	ring-buffer: add counters for commit overrun and nmi dropped entries	2009-05-05 13:51:02 -04:00
trace_boot.c	tracing: use macros to denote usec and nsec per second	2009-04-07 14:43:06 +02:00
trace_branch.c	tracing/filters: use ring_buffer_discard_commit() in filter_check_discard()	2009-04-14 00:00:56 +02:00
trace_clock.c	tracing: fix four sparse warnings	2009-03-22 18:16:54 +01:00
trace_event_profile.c	tracing/events: convert event call sites to use a link list	2009-04-14 12:58:00 -04:00
trace_event_types.h	tracing/filters: distinguish between signed and unsigned fields	2009-04-29 14:06:03 +02:00
trace_events_filter.c	tracing/filters: a better event parser	2009-04-29 14:06:11 +02:00
trace_events.c	tracing/filters: a better event parser	2009-04-29 14:06:11 +02:00
trace_export.c	tracing/filters: distinguish between signed and unsigned fields	2009-04-29 14:06:03 +02:00
trace_functions_graph.c	function-graph: add option to calculate graph time or not	2009-03-24 23:41:11 -04:00
trace_functions.c	tracing/core: use appropriate waiting on trace_pipe	2009-02-18 01:40:20 +01:00
trace_hw_branches.c	tracing/filters: use ring_buffer_discard_commit() in filter_check_discard()	2009-04-14 00:00:56 +02:00
trace_irqsoff.c	tracing: have latency tracers set the latency format	2009-03-04 22:15:30 -05:00
trace_mmiotrace.c	tracing: use macros to denote usec and nsec per second	2009-04-07 14:43:06 +02:00
trace_nop.c	tracing/ftrace: make nop-tracer use polling wait for events on pipe	2009-03-23 09:22:15 +01:00
trace_output.c	tracing/events: reuse trace event ids after overflow	2009-04-24 23:06:00 -04:00
trace_output.h	tracing/events: move declarations from trace directory to core include	2009-04-14 12:57:58 -04:00
trace_power.c	tracing/filters: use ring_buffer_discard_commit() in filter_check_discard()	2009-04-14 00:00:56 +02:00
trace_printk.c	tracing/ftrace: factorize the tracing files creation	2009-04-07 14:43:07 +02:00
trace_sched_switch.c	tracing/events: move trace point headers into include/trace/events	2009-04-14 22:05:43 -04:00
trace_sched_wakeup.c	tracing/wakeup: move access to wakeup_cpu into spinlock	2009-04-23 23:01:36 -04:00
trace_selftest_dynamic.c	ftrace: fix dynamic ftrace selftest	2008-05-23 21:13:23 +02:00
trace_selftest.c	tracing: keep the tracing buffer after self-test failure	2009-03-22 15:17:21 +01:00
trace_stack.c	tracing/ftrace: factorize the tracing files creation	2009-04-07 14:43:07 +02:00
trace_stat.c	Merge branch 'linus' into tracing/core	2009-04-07 13:47:45 +02:00
trace_stat.h	tracing: add handler to trace_stat	2009-03-24 23:22:58 -04:00
trace_syscalls.c	tracing/syscalls: use a dedicated file header	2009-04-09 05:43:32 +02:00
trace_sysprof.c	tracing/ftrace: factorize the tracing files creation	2009-04-07 14:43:07 +02:00
trace_workqueue.c	Merge branch 'linus' into tracing/core	2009-04-07 13:47:45 +02:00
trace.c	tracing: export stats of ring buffers to userspace	2009-05-05 13:52:02 -04:00
trace.h	tracing/filters: a better event parser	2009-04-29 14:06:11 +02:00