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perf/scripts: Add syscall tracing scripts

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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 <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1264580883-15324-8-git-send-email-tzanussi@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Tom Zanussi 2010-01-27 02:27:58 -06:00 committed by Frederic Weisbecker
parent 7e4b21b84c
commit 4d161f0360
15 changed files with 339 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
tools/perf/Makefile
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@ -1032,7 +1032,10 @@ install: all
$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'
$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
$(INSTALL) scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
ifdef BUILT_INS
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'

2
tools/perf/scripts/perl/bin/check-perf-trace-record
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@ -1,2 +1,2 @@
#!/bin/bash
perf record -c 1 -f -a -M -R -e kmem:kmalloc -e irq:softirq_entry
perf record -c 1 -f -a -M -R -e kmem:kmalloc -e irq:softirq_entry -e kmem:kfree

2
tools/perf/scripts/perl/bin/failed-syscalls-record Normal file
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@ -0,0 +1,2 @@
#!/bin/bash
perf record -c 1 -f -a -M -R -e raw_syscalls:sys_exit

4
tools/perf/scripts/perl/bin/failed-syscalls-report Normal file
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@ -0,0 +1,4 @@
#!/bin/bash
# description: system-wide failed syscalls
# args: [comm]
perf trace -s ~/libexec/perf-core/scripts/perl/failed-syscalls.pl $1

38
tools/perf/scripts/perl/failed-syscalls.pl Normal file
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@ -0,0 +1,38 @@
# failed system call counts
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
# Licensed under the terms of the GNU GPL License version 2
#
# Displays system-wide failed system call totals
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
use lib "./Perf-Trace-Util/lib";
use Perf::Trace::Core;
use Perf::Trace::Context;
use Perf::Trace::Util;
my %failed_syscalls;
sub raw_syscalls::sys_exit
{
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
$common_pid, $common_comm,
$id, $ret) = @_;
if ($ret < 0) {
$failed_syscalls{$common_comm}++;
}
}
sub trace_end
{
printf("\nfailed syscalls by comm:\n\n");
printf("%-20s %10s\n", "comm", "# errors");
printf("%-20s %6s %10s\n", "--------------------", "----------");
foreach my $comm (sort {$failed_syscalls{$b} <=> $failed_syscalls{$a}}
keys %failed_syscalls) {
printf("%-20s %10s\n", $comm, $failed_syscalls{$comm});
}
}

2
tools/perf/scripts/python/bin/failed-syscalls-by-pid-record Normal file
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@ -0,0 +1,2 @@
#!/bin/bash
perf record -c 1 -f -a -M -R -e raw_syscalls:sys_exit

4
tools/perf/scripts/python/bin/failed-syscalls-by-pid-report Normal file
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@ -0,0 +1,4 @@
#!/bin/bash
# description: system-wide failed syscalls, by pid
# args: [comm]
perf trace -s ~/libexec/perf-core/scripts/python/failed-syscalls-by-pid.py $1

2
tools/perf/scripts/python/bin/syscall-counts-by-pid-record Normal file
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@ -0,0 +1,2 @@
#!/bin/bash
perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter

4
tools/perf/scripts/python/bin/syscall-counts-by-pid-report Normal file
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@ -0,0 +1,4 @@
#!/bin/bash
# description: system-wide syscall counts, by pid
# args: [comm]
perf trace -s ~/libexec/perf-core/scripts/python/syscall-counts-by-pid.py $1

2
tools/perf/scripts/python/bin/syscall-counts-record Normal file
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@ -0,0 +1,2 @@
#!/bin/bash
perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter

4
tools/perf/scripts/python/bin/syscall-counts-report Normal file
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@ -0,0 +1,4 @@
#!/bin/bash
# description: system-wide syscall counts
# args: [comm]
perf trace -s ~/libexec/perf-core/scripts/python/syscall-counts.py $1

83
tools/perf/scripts/python/check-perf-trace.py Normal file
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@ -0,0 +1,83 @@
# perf trace event handlers, generated by perf trace -g python
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
# 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])

68
tools/perf/scripts/python/failed-syscalls-by-pid.py Normal file
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@ -0,0 +1,68 @@
# failed system call counts, by pid
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
# Licensed under the terms of the GNU GPL License version 2
#
# Displays system-wide failed system call totals, broken down by pid.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
import os
import sys
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
from perf_trace_context import *
from Core import *
usage = "perf trace -s syscall-counts-by-pid.py [comm]\n";
for_comm = None
if len(sys.argv) > 2:
sys.exit(usage)
if len(sys.argv) > 1:
for_comm = sys.argv[1]
syscalls = autodict()
def trace_begin():
pass
def trace_end():
print_error_totals()
def raw_syscalls__sys_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, ret):
if for_comm is not None:
if common_comm != for_comm:
return
if ret < 0:
try:
syscalls[common_comm][common_pid][id][ret] += 1
except TypeError:
syscalls[common_comm][common_pid][id][ret] = 1
def print_error_totals():
if for_comm is not None:
print "\nsyscall errors for %s:\n\n" % (for_comm),
else:
print "\nsyscall errors:\n\n",
print "%-30s %10s\n" % ("comm [pid]", "count"),
print "%-30s %10s\n" % ("------------------------------", \
"----------"),
comm_keys = syscalls.keys()
for comm in comm_keys:
pid_keys = syscalls[comm].keys()
for pid in pid_keys:
print "\n%s [%d]\n" % (comm, pid),
id_keys = syscalls[comm][pid].keys()
for id in id_keys:
print " syscall: %-16d\n" % (id),
ret_keys = syscalls[comm][pid][id].keys()
for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k), reverse = True):
print " err = %-20d %10d\n" % (ret, val),

64
tools/perf/scripts/python/syscall-counts-by-pid.py Normal file
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@ -0,0 +1,64 @@
# system call counts, by pid
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
# Licensed under the terms of the GNU GPL License version 2
#
# Displays system-wide system call totals, broken down by syscall.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
import os
import sys
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
from perf_trace_context import *
from Core import *
usage = "perf trace -s syscall-counts-by-pid.py [comm]\n";
for_comm = None
if len(sys.argv) > 2:
sys.exit(usage)
if len(sys.argv) > 1:
for_comm = sys.argv[1]
syscalls = autodict()
def trace_begin():
pass
def trace_end():
print_syscall_totals()
def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, args):
if for_comm is not None:
if common_comm != for_comm:
return
try:
syscalls[common_comm][common_pid][id] += 1
except TypeError:
syscalls[common_comm][common_pid][id] = 1
def print_syscall_totals():
if for_comm is not None:
print "\nsyscall events for %s:\n\n" % (for_comm),
else:
print "\nsyscall events by comm/pid:\n\n",
print "%-40s %10s\n" % ("comm [pid]/syscalls", "count"),
print "%-40s %10s\n" % ("----------------------------------------", \
"----------"),
comm_keys = syscalls.keys()
for comm in comm_keys:
pid_keys = syscalls[comm].keys()
for pid in pid_keys:
print "\n%s [%d]\n" % (comm, pid),
id_keys = syscalls[comm][pid].keys()
for id, val in sorted(syscalls[comm][pid].iteritems(), \
key = lambda(k, v): (v, k), reverse = True):
print " %-38d %10d\n" % (id, val),

58
tools/perf/scripts/python/syscall-counts.py Normal file
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@ -0,0 +1,58 @@
# system call counts
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
# Licensed under the terms of the GNU GPL License version 2
#
# Displays system-wide system call totals, broken down by syscall.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
import os
import sys
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
from perf_trace_context import *
from Core import *
usage = "perf trace -s syscall-counts.py [comm]\n";
for_comm = None
if len(sys.argv) > 2:
sys.exit(usage)
if len(sys.argv) > 1:
for_comm = sys.argv[1]
syscalls = autodict()
def trace_begin():
pass
def trace_end():
print_syscall_totals()
def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, args):
if for_comm is not None:
if common_comm != for_comm:
return
try:
syscalls[id] += 1
except TypeError:
syscalls[id] = 1
def print_syscall_totals():
if for_comm is not None:
print "\nsyscall events for %s:\n\n" % (for_comm),
else:
print "\nsyscall events:\n\n",
print "%-40s %10s\n" % ("event", "count"),
print "%-40s %10s\n" % ("----------------------------------------", \
"-----------"),
for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
reverse = True):
print "%-40d %10d\n" % (id, val),