diff options
Diffstat (limited to 'tools/perf/builtin-top.c')
| -rw-r--r-- | tools/perf/builtin-top.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index a66f4272b994..45014ef11059 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -102,6 +102,7 @@ struct sym_entry *sym_filter_entry_sched = NULL; static int sym_pcnt_filter = 5; static int sym_counter = 0; static int display_weighted = -1; +static const char *cpu_list; /* * Symbols @@ -1351,8 +1352,8 @@ static const struct option options[] = { "profile events on existing thread id"), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), - OPT_INTEGER('C', "CPU", &profile_cpu, - "CPU to profile on"), + OPT_STRING('C', "cpu", &cpu_list, "cpu", + "list of cpus to monitor"), OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, "file", "vmlinux pathname"), OPT_BOOLEAN('K', "hide_kernel_symbols", &hide_kernel_symbols, @@ -1428,10 +1429,10 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) return -ENOMEM; /* CPU and PID are mutually exclusive */ - if (target_tid > 0 && profile_cpu != -1) { + if (target_tid > 0 && cpu_list) { printf("WARNING: PID switch overriding CPU\n"); sleep(1); - profile_cpu = -1; + cpu_list = NULL; } if (!nr_counters) @@ -1469,10 +1470,13 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) attrs[counter].sample_period = default_interval; } - if (target_tid != -1 || profile_cpu != -1) + if (target_tid != -1) nr_cpus = 1; else - nr_cpus = read_cpu_map(); + nr_cpus = read_cpu_map(cpu_list); + + if (nr_cpus < 1) + usage_with_options(top_usage, options); get_term_dimensions(&winsize); if (print_entries == 0) { |