1 # perf script event handlers, generated by perf script -g python
2 # (c) 2010, Tom Zanussi <tzanussi@gmail.com>
3 # Licensed under the terms of the GNU GPL License version 2
5 # This script tests basic functionality such as flag and symbol
6 # strings, common_xxx() calls back into perf, begin, end, unhandled
7 # events, etc. Basically, if this script runs successfully and
8 # displays expected results, Python scripting support should be ok.
13 sys
.path
.append(os
.environ
['PERF_EXEC_PATH'] + \
14 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
17 from perf_trace_context
import *
19 unhandled
= autodict()
28 def irq__softirq_entry(event_name
, context
, common_cpu
,
29 common_secs
, common_nsecs
, common_pid
, common_comm
,
30 common_callchain
, vec
):
31 print_header(event_name
, common_cpu
, common_secs
, common_nsecs
,
32 common_pid
, common_comm
)
34 print_uncommon(context
)
37 (symbol_str("irq__softirq_entry", "vec", vec
)),
39 def kmem__kmalloc(event_name
, context
, common_cpu
,
40 common_secs
, common_nsecs
, common_pid
, common_comm
,
41 common_callchain
, call_site
, ptr
, bytes_req
, bytes_alloc
,
43 print_header(event_name
, common_cpu
, common_secs
, common_nsecs
,
44 common_pid
, common_comm
)
46 print_uncommon(context
)
48 print "call_site=%u, ptr=%u, bytes_req=%u, " \
49 "bytes_alloc=%u, gfp_flags=%s\n" % \
50 (call_site
, ptr
, bytes_req
, bytes_alloc
,
52 flag_str("kmem__kmalloc", "gfp_flags", gfp_flags
)),
54 def trace_unhandled(event_name
, context
, event_fields_dict
):
56 unhandled
[event_name
] += 1
58 unhandled
[event_name
] = 1
60 def print_header(event_name
, cpu
, secs
, nsecs
, pid
, comm
):
61 print "%-20s %5u %05u.%09u %8u %-20s " % \
62 (event_name
, cpu
, secs
, nsecs
, pid
, comm
),
64 # print trace fields not included in handler args
65 def print_uncommon(context
):
66 print "common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, " \
67 % (common_pc(context
), trace_flag_str(common_flags(context
)), \
68 common_lock_depth(context
))
70 def print_unhandled():
71 keys
= unhandled
.keys()
75 print "\nunhandled events:\n\n",
77 print "%-40s %10s\n" % ("event", "count"),
78 print "%-40s %10s\n" % ("----------------------------------------", \
81 for event_name
in keys
:
82 print "%-40s %10d\n" % (event_name
, unhandled
[event_name
])