linux/include/trace
Dave Hansen 0c4df02d73 x86: Add NMI duration tracepoints
This patch has been invaluable in my adventures finding
issues in the perf NMI handler.  I'm as big a fan of
printk() as anybody is, but using printk() in NMIs is
deadly when they're happening frequently.

Even hacking in trace_printk() ended up eating enough
CPU to throw off some of the measurements I was making.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org
Cc: acme@ghostprotocols.net
Cc: Dave Hansen <dave@sr71.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-23 11:52:58 +02:00
..
events x86: Add NMI duration tracepoints 2013-06-23 11:52:58 +02:00
define_trace.h treewide: fix comment/printk/variable typos 2012-09-01 10:33:05 -07:00
ftrace.h tracing: Remove obsolete macro guard _TRACE_PROFILE_INIT 2013-04-12 23:02:33 -04:00
syscall.h tracing: Cleanup unnecessary function declarations 2012-10-31 16:45:34 -04:00