mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-30 22:03:17 +01:00
Tom Zanussi
4d161f0360
Adds a set of scripts that aggregate system call totals and system call errors. Most are Python scripts that also test basic functionality of the new Python engine, but there's also one Perl script added for comparison and for reference in some new Documentation contained in a later patch. Signed-off-by: Tom Zanussi <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Keiichi KII <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
# perf trace event handlers, generated by perf trace -g python
|
|
# (c) 2010, Tom Zanussi <[email protected]>
|
|
# Licensed under the terms of the GNU GPL License version 2
|
|
#
|
|
# This script tests basic functionality such as flag and symbol
|
|
# strings, common_xxx() calls back into perf, begin, end, unhandled
|
|
# events, etc. Basically, if this script runs successfully and
|
|
# displays expected results, Python scripting support should be ok.
|
|
|
|
import os
|
|
import sys
|
|
|
|
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
|
|
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
|
|
|
|
from Core import *
|
|
from perf_trace_context import *
|
|
|
|
unhandled = autodict()
|
|
|
|
def trace_begin():
|
|
print "trace_begin"
|
|
pass
|
|
|
|
def trace_end():
|
|
print_unhandled()
|
|
|
|
def irq__softirq_entry(event_name, context, common_cpu,
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
|
vec):
|
|
print_header(event_name, common_cpu, common_secs, common_nsecs,
|
|
common_pid, common_comm)
|
|
|
|
print_uncommon(context)
|
|
|
|
print "vec=%s\n" % \
|
|
(symbol_str("irq__softirq_entry", "vec", vec)),
|
|
|
|
def kmem__kmalloc(event_name, context, common_cpu,
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
|
call_site, ptr, bytes_req, bytes_alloc,
|
|
gfp_flags):
|
|
print_header(event_name, common_cpu, common_secs, common_nsecs,
|
|
common_pid, common_comm)
|
|
|
|
print_uncommon(context)
|
|
|
|
print "call_site=%u, ptr=%u, bytes_req=%u, " \
|
|
"bytes_alloc=%u, gfp_flags=%s\n" % \
|
|
(call_site, ptr, bytes_req, bytes_alloc,
|
|
|
|
flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)),
|
|
|
|
def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs,
|
|
common_pid, common_comm):
|
|
try:
|
|
unhandled[event_name] += 1
|
|
except TypeError:
|
|
unhandled[event_name] = 1
|
|
|
|
def print_header(event_name, cpu, secs, nsecs, pid, comm):
|
|
print "%-20s %5u %05u.%09u %8u %-20s " % \
|
|
(event_name, cpu, secs, nsecs, pid, comm),
|
|
|
|
# print trace fields not included in handler args
|
|
def print_uncommon(context):
|
|
print "common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, " \
|
|
% (common_pc(context), trace_flag_str(common_flags(context)), \
|
|
common_lock_depth(context))
|
|
|
|
def print_unhandled():
|
|
keys = unhandled.keys()
|
|
if not keys:
|
|
return
|
|
|
|
print "\nunhandled events:\n\n",
|
|
|
|
print "%-40s %10s\n" % ("event", "count"),
|
|
print "%-40s %10s\n" % ("----------------------------------------", \
|
|
"-----------"),
|
|
|
|
for event_name in keys:
|
|
print "%-40s %10d\n" % (event_name, unhandled[event_name])
|