diff options
| -rw-r--r-- | tools/perf/builtin-top.c | 92 |
1 files changed, 67 insertions, 25 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 89b7f68a179..a368978d517 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -78,6 +78,14 @@ static int dump_symtab = 0; static bool hide_kernel_symbols = false; static bool hide_user_symbols = false; +static struct winsize winsize; +static const char *graph_line = + "_____________________________________________________________________" + "_____________________________________________________________________"; +static const char *graph_dotted_line = + "---------------------------------------------------------------------" + "---------------------------------------------------------------------" + "---------------------------------------------------------------------"; /* * Source @@ -107,6 +115,7 @@ struct sym_entry { unsigned long snap_count; double weight; int skip; + u16 name_len; u8 origin; struct map *map; struct source_line *source; @@ -119,34 +128,40 @@ struct sym_entry { * Source functions */ -/* most GUI terminals set LINES (although some don't export it) */ -static int term_rows(void) +static void get_term_dimensions(struct winsize *ws) { - char *lines_string = getenv("LINES"); - int n_lines; - - if (lines_string && (n_lines = atoi(lines_string)) > 0) - return n_lines; -#ifdef TIOCGWINSZ - else { - struct winsize ws; - if (!ioctl(1, TIOCGWINSZ, &ws) && ws.ws_row) - return ws.ws_row; + char *s = getenv("LINES"); + + if (s != NULL) { + ws->ws_row = atoi(s); + s = getenv("COLUMNS"); + if (s != NULL) { + ws->ws_col = atoi(s); + if (ws->ws_row && ws->ws_col) + return; + } } +#ifdef TIOCGWINSZ + if (ioctl(1, TIOCGWINSZ, ws) == 0 && + ws->ws_row && ws->ws_col) + return; #endif - return 25; + ws->ws_row = 25; + ws->ws_col = 80; } -static void update_print_entries(void) +static void update_print_entries(struct winsize *ws) { - print_entries = term_rows(); + print_entries = ws->ws_row; + if (print_entries > 9) print_entries -= 9; } static void sig_winch_handler(int sig __used) { - update_print_entries(); + get_term_dimensions(&winsize); + update_print_entries(&winsize); } static void parse_source(struct sym_entry *syme) @@ -423,6 +438,8 @@ static void print_sym_table(void) struct sym_entry *syme, *n; struct rb_root tmp = RB_ROOT; struct rb_node *nd; + int sym_width = 0, dso_width; + const int win_width = winsize.ws_col - 1; samples = userspace_samples = 0; @@ -434,6 +451,7 @@ static void print_sym_table(void) list_for_each_entry_safe_from(syme, n, &active_symbols, node) { syme->snap_count = syme->count[snap]; if (syme->snap_count != 0) { + if ((hide_user_symbols && syme->origin == PERF_RECORD_MISC_USER) || (hide_kernel_symbols && @@ -453,8 +471,7 @@ static void print_sym_table(void) puts(CONSOLE_CLEAR); - printf( -"------------------------------------------------------------------------------\n"); + printf("%-*.*s\n", win_width, win_width, graph_dotted_line); printf( " PerfTop:%8.0f irqs/sec kernel:%4.1f%% [", samples_per_sec, 100.0 - (100.0*((samples_per_sec-ksamples_per_sec)/samples_per_sec))); @@ -492,26 +509,44 @@ static void print_sym_table(void) printf(", %d CPUs)\n", nr_cpus); } - printf("------------------------------------------------------------------------------\n\n"); + printf("%-*.*s\n\n", win_width, win_width, graph_dotted_line); if (sym_filter_entry) { show_details(sym_filter_entry); return; } + /* + * Find the longest symbol name that will be displayed + */ + for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { + syme = rb_entry(nd, struct sym_entry, rb_node); + if (++printed > print_entries || + (int)syme->snap_count < count_filter) + continue; + + if (syme->name_len > sym_width) + sym_width = syme->name_len; + } + + printed = 0; + if (nr_counters == 1) printf(" samples pcnt"); else printf(" weight samples pcnt"); + dso_width = winsize.ws_col - sym_width - 29; + if (verbose) printf(" RIP "); - printf(" function DSO\n"); + printf(" %-*.*s DSO\n", sym_width, sym_width, "function"); printf(" %s _______ _____", nr_counters == 1 ? " " : "______"); if (verbose) printf(" ________________"); - printf(" ________________________________ ________________\n\n"); + printf(" %-*.*s %-*.*s\n\n", sym_width, sym_width, graph_line, + dso_width, dso_width, graph_line); for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { struct symbol *sym; @@ -534,8 +569,11 @@ static void print_sym_table(void) percent_color_fprintf(stdout, "%4.1f%%", pcnt); if (verbose) printf(" %016llx", sym->start); - printf(" %-32s", sym->name); - printf(" %s", syme->map->dso->short_name); + printf(" %-*.*s", sym_width, sym_width, sym->name); + printf(" %-*.*s", dso_width, dso_width, + dso_width >= syme->map->dso->long_name_len ? + syme->map->dso->long_name : + syme->map->dso->short_name); printf("\n"); } } @@ -718,7 +756,7 @@ static void handle_keypress(int c) case 'e': prompt_integer(&print_entries, "Enter display entries (lines)"); if (print_entries == 0) { - update_print_entries(); + sig_winch_handler(SIGWINCH); signal(SIGWINCH, sig_winch_handler); } else signal(SIGWINCH, SIG_DFL); @@ -862,6 +900,9 @@ static int symbol_filter(struct map *map, struct symbol *sym) } } + if (!syme->skip) + syme->name_len = strlen(sym->name); + return 0; } @@ -1301,8 +1342,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) if (target_pid != -1 || profile_cpu != -1) nr_cpus = 1; + get_term_dimensions(&winsize); if (print_entries == 0) { - update_print_entries(); + update_print_entries(&winsize); signal(SIGWINCH, sig_winch_handler); } |