perf python scripting: Improve the syscalls-counts script
. Print message at script start telling how to get te summary
. Print the syscall name
Now it looks like this:
[root@emilia ~]# perf trace syscall-counts
Press control+C to stop and show the summary
^C
syscall events:
event count
---------------------------------------- -----------
read 102752
open 1293
close 878
write 319
stat 185
fstat 149
getdents 116
mmap 98
brk 80
rt_sigaction 66
munmap 42
mprotect 24
lseek 21
lstat 7
rt_sigprocmask 4
futex 3
statfs 3
ioctl 3
readlink 2
select 2
getegid 1
geteuid 1
getgid 1
getuid 1
getrlimit 1
fcntl 1
uname 1
[root@emilia ~]#
Cc: David S. Miller <davem@davemloft.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>