diff options
| -rw-r--r-- | Documentation/perf_counter/builtin-top.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c index 31c00ba99b14..28cbde4b6e83 100644 --- a/Documentation/perf_counter/builtin-top.c +++ b/Documentation/perf_counter/builtin-top.c @@ -204,7 +204,7 @@ static void print_sym_table(void) list_remove_active_sym(syme); } - write(1, CONSOLE_CLEAR, strlen(CONSOLE_CLEAR)); + puts(CONSOLE_CLEAR); printf( "------------------------------------------------------------------------------\n"); @@ -278,23 +278,21 @@ static void print_sym_table(void) color_fprintf(stdout, color, "%4.1f%%", pcnt); printf(" - %016llx : %s\n", sym->start, sym->name); } - - { - struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; - - if (poll(&stdin_poll, 1, 0) == 1) { - printf("key pressed - exiting.\n"); - exit(0); - } - } } static void *display_thread(void *arg) { + struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; + int delay_msecs = delay_secs * 1000; + printf("PerfTop refresh period: %d seconds\n", delay_secs); - while (!sleep(delay_secs)) + do { print_sym_table(); + } while (!poll(&stdin_poll, 1, delay_msecs) == 1); + + printf("key pressed - exiting.\n"); + exit(0); return NULL; } |