Commit-ID: c965be10ca3cb0bdd04016c852764afaf8e647c8
Gitweb: http://git.kernel.org/tip/c965be10ca3cb0bdd04016c852764afaf8e647c8
Author: Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Sat, 30 Jan 2010 20:43:32 +0900
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Sun, 31 Jan 2010 09:08:23 +0100
perf lock: Enhance information of lock trace events
Add wait time and lock identification details.
Signed-off-by: Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
LKML-Reference: <1264851813-8413-11-git-send-email-mitake@xxxxxxxxxxxxxxxxxxxxx>
[ removed the file/line bits as we can do that better via IPs ]
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
include/trace/events/lock.h | 29 ++++++++++++++++++++---------
1 files changed, 20 insertions(+), 9 deletions(-)
diff --git a/include/trace/events/lock.h b/include/trace/events/lock.h
index a870ba1..5c1dcfc 100644
--- a/include/trace/events/lock.h
+++ b/include/trace/events/lock.h
@@ -20,14 +20,17 @@ TRACE_EVENT(lock_acquire,
TP_STRUCT__entry(
__field(unsigned int, flags)
__string(name, lock->name)
+ __field(void *, lockdep_addr)
),
TP_fast_assign(
__entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
__assign_str(name, lock->name);
+ __entry->lockdep_addr = lock;
),
- TP_printk("%s%s%s", (__entry->flags & 1) ? "try " : "",
+ TP_printk("%p %s%s%s", __entry->lockdep_addr,
+ (__entry->flags & 1) ? "try " : "",
(__entry->flags & 2) ? "read " : "",
__get_str(name))
);
@@ -40,13 +43,16 @@ TRACE_EVENT(lock_release,
TP_STRUCT__entry(
__string(name, lock->name)
+ __field(void *, lockdep_addr)
),
TP_fast_assign(
__assign_str(name, lock->name);
+ __entry->lockdep_addr = lock;
),
- TP_printk("%s", __get_str(name))
+ TP_printk("%p %s",
+ __entry->lockdep_addr, __get_str(name))
);
#ifdef CONFIG_LOCK_STAT
@@ -59,13 +65,16 @@ TRACE_EVENT(lock_contended,
TP_STRUCT__entry(
__string(name, lock->name)
+ __field(void *, lockdep_addr)
),
TP_fast_assign(
__assign_str(name, lock->name);
+ __entry->lockdep_addr = lock;
),
- TP_printk("%s", __get_str(name))
+ TP_printk("%p %s",
+ __entry->lockdep_addr, __get_str(name))
);
TRACE_EVENT(lock_acquired,
@@ -75,16 +84,18 @@ TRACE_EVENT(lock_acquired,
TP_STRUCT__entry(
__string(name, lock->name)
- __field(unsigned long, wait_usec)
- __field(unsigned long, wait_nsec_rem)
+ __field(s64, wait_nsec)
+ __field(void *, lockdep_addr)
),
+
TP_fast_assign(
__assign_str(name, lock->name);
- __entry->wait_nsec_rem = do_div(waittime, NSEC_PER_USEC);
- __entry->wait_usec = (unsigned long) waittime;
+ __entry->wait_nsec = waittime;
+ __entry->lockdep_addr = lock;
),
- TP_printk("%s (%lu.%03lu us)", __get_str(name), __entry->wait_usec,
- __entry->wait_nsec_rem)
+ TP_printk("%p %s (%llu ns)", __entry->lockdep_addr,
+ __get_str(name),
+ __entry->wait_nsec)
);
#endif
--
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