perf top: Suppress DSO column if only one is present
E.g.
[root@doppio ~]# perf top -U
---------------------------------------------------------------------------
PerfTop: 482 irqs/sec kernel:100.0% [1000Hz cycles], (all, 2 CPUs)
---------------------------------------------------------------------------
DSO: vmlinux
samples pcnt function
_______ _____ _________________________
471.00 47.9% read_hpet
57.00 5.8% acpi_os_read_port
30.00 3.1% hpet_next_event
30.00 3.1% find_busiest_group
22.00 2.2% schedule
18.00 1.8% sched_clock_local
14.00 1.4% _spin_lock_irqsave
14.00 1.4% native_read_tsc
13.00 1.3% trace_hardirqs_off
9.00 0.9% fget_light
9.00 0.9% ioread8
8.00 0.8% do_sys_poll
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1258479655-28662-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
1 file changed