From: Ingo Molnar Date: Thu, 4 Jun 2009 13:19:47 +0000 (+0200) Subject: perf_counter tools: Add color terminal output support X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8fc0321f1ad0ffef969056dda91b453bbd7a494d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git perf_counter tools: Add color terminal output support Add Git's color printing library to util/color.[ch]. Add it to perf report, with a trivial example to print high-overhead entries in red, low-overhead entries in green. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- diff --git a/Documentation/perf_counter/Makefile b/Documentation/perf_counter/Makefile index 414399cbc51a..c9ec4585f4d6 100644 --- a/Documentation/perf_counter/Makefile +++ b/Documentation/perf_counter/Makefile @@ -298,6 +298,7 @@ LIB_H += util/string.h LIB_H += util/run-command.h LIB_H += util/sigchain.h LIB_H += util/symbol.h +LIB_H += util/color.h LIB_OBJS += util/abspath.o LIB_OBJS += util/alias.o @@ -319,6 +320,7 @@ LIB_OBJS += util/usage.o LIB_OBJS += util/wrapper.o LIB_OBJS += util/sigchain.o LIB_OBJS += util/symbol.o +LIB_OBJS += util/color.o LIB_OBJS += util/pager.o BUILTIN_OBJS += builtin-help.o diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c index e930b4e02335..7beedc6effa4 100644 --- a/Documentation/perf_counter/builtin-report.c +++ b/Documentation/perf_counter/builtin-report.c @@ -9,6 +9,7 @@ #include "util/util.h" +#include "util/color.h" #include "util/list.h" #include "util/cache.h" #include "util/rbtree.h" @@ -548,7 +549,19 @@ hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples) size_t ret; if (total_samples) { - ret = fprintf(fp, " %6.2f%%", + double percent = self->count * 100.0 / total_samples; + char *color = PERF_COLOR_NORMAL; + + /* + * We color high-overhead entries in red, low-overhead + * entries in green - and keep the middle ground normal: + */ + if (percent >= 5.0) + color = PERF_COLOR_RED; + if (percent < 0.5) + color = PERF_COLOR_GREEN; + + ret = color_fprintf(fp, color, " %6.2f%%", (self->count * 100.0) / total_samples); } else ret = fprintf(fp, "%12d ", self->count); diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c index 548a8da4b15b..20e5b1200959 100644 --- a/Documentation/perf_counter/builtin-top.c +++ b/Documentation/perf_counter/builtin-top.c @@ -21,6 +21,7 @@ #include "perf.h" #include "util/symbol.h" +#include "util/color.h" #include "util/util.h" #include "util/rbtree.h" #include "util/parse-options.h" @@ -253,7 +254,8 @@ static void print_sym_table(void) for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { struct sym_entry *syme = rb_entry(nd, struct sym_entry, rb_node); struct symbol *sym = (struct symbol *)(syme + 1); - float pcnt; + char *color = PERF_COLOR_NORMAL; + double pcnt; if (++printed > print_entries || syme->snap_count < count_filter) continue; @@ -261,13 +263,22 @@ static void print_sym_table(void) pcnt = 100.0 - (100.0 * ((sum_kevents - syme->snap_count) / sum_kevents)); + /* + * We color high-overhead entries in red, low-overhead + * entries in green - and keep the middle ground normal: + */ + if (pcnt >= 5.0) + color = PERF_COLOR_RED; + if (pcnt < 0.5) + color = PERF_COLOR_GREEN; + if (nr_counters == 1) - printf("%19.2f - %4.1f%% - %016llx : %s\n", - syme->weight, pcnt, sym->start, sym->name); + printf("%19.2f - ", syme->weight); else - printf("%8.1f %10ld - %4.1f%% - %016llx : %s\n", - syme->weight, syme->snap_count, - pcnt, sym->start, sym->name); + printf("%8.1f %10ld - ", syme->weight, syme->snap_count); + + color_fprintf(stdout, color, "%4.1f%%", pcnt); + printf(" - %016llx : %s\n", sym->start, sym->name); } { diff --git a/Documentation/perf_counter/util/color.c b/Documentation/perf_counter/util/color.c new file mode 100644 index 000000000000..a77975d66774 --- /dev/null +++ b/Documentation/perf_counter/util/color.c @@ -0,0 +1,230 @@ +#include "cache.h" +#include "color.h" + +int perf_use_color_default = 0; + +static int parse_color(const char *name, int len) +{ + static const char * const color_names[] = { + "normal", "black", "red", "green", "yellow", + "blue", "magenta", "cyan", "white" + }; + char *end; + int i; + for (i = 0; i < ARRAY_SIZE(color_names); i++) { + const char *str = color_names[i]; + if (!strncasecmp(name, str, len) && !str[len]) + return i - 1; + } + i = strtol(name, &end, 10); + if (end - name == len && i >= -1 && i <= 255) + return i; + return -2; +} + +static int parse_attr(const char *name, int len) +{ + static const int attr_values[] = { 1, 2, 4, 5, 7 }; + static const char * const attr_names[] = { + "bold", "dim", "ul", "blink", "reverse" + }; + int i; + for (i = 0; i < ARRAY_SIZE(attr_names); i++) { + const char *str = attr_names[i]; + if (!strncasecmp(name, str, len) && !str[len]) + return attr_values[i]; + } + return -1; +} + +void color_parse(const char *value, const char *var, char *dst) +{ + color_parse_mem(value, strlen(value), var, dst); +} + +void color_parse_mem(const char *value, int value_len, const char *var, + char *dst) +{ + const char *ptr = value; + int len = value_len; + int attr = -1; + int fg = -2; + int bg = -2; + + if (!strncasecmp(value, "reset", len)) { + strcpy(dst, PERF_COLOR_RESET); + return; + } + + /* [fg [bg]] [attr] */ + while (len > 0) { + const char *word = ptr; + int val, wordlen = 0; + + while (len > 0 && !isspace(word[wordlen])) { + wordlen++; + len--; + } + + ptr = word + wordlen; + while (len > 0 && isspace(*ptr)) { + ptr++; + len--; + } + + val = parse_color(word, wordlen); + if (val >= -1) { + if (fg == -2) { + fg = val; + continue; + } + if (bg == -2) { + bg = val; + continue; + } + goto bad; + } + val = parse_attr(word, wordlen); + if (val < 0 || attr != -1) + goto bad; + attr = val; + } + + if (attr >= 0 || fg >= 0 || bg >= 0) { + int sep = 0; + + *dst++ = '\033'; + *dst++ = '['; + if (attr >= 0) { + *dst++ = '0' + attr; + sep++; + } + if (fg >= 0) { + if (sep++) + *dst++ = ';'; + if (fg < 8) { + *dst++ = '3'; + *dst++ = '0' + fg; + } else { + dst += sprintf(dst, "38;5;%d", fg); + } + } + if (bg >= 0) { + if (sep++) + *dst++ = ';'; + if (bg < 8) { + *dst++ = '4'; + *dst++ = '0' + bg; + } else { + dst += sprintf(dst, "48;5;%d", bg); + } + } + *dst++ = 'm'; + } + *dst = 0; + return; +bad: + die("bad color value '%.*s' for variable '%s'", value_len, value, var); +} + +int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty) +{ + if (value) { + if (!strcasecmp(value, "never")) + return 0; + if (!strcasecmp(value, "always")) + return 1; + if (!strcasecmp(value, "auto")) + goto auto_color; + } + + /* Missing or explicit false to turn off colorization */ + if (!perf_config_bool(var, value)) + return 0; + + /* any normal truth value defaults to 'auto' */ + auto_color: + if (stdout_is_tty < 0) + stdout_is_tty = isatty(1); + if (stdout_is_tty || (pager_in_use() && pager_use_color)) { + char *term = getenv("TERM"); + if (term && strcmp(term, "dumb")) + return 1; + } + return 0; +} + +int perf_color_default_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "color.ui")) { + perf_use_color_default = perf_config_colorbool(var, value, -1); + return 0; + } + + return perf_default_config(var, value, cb); +} + +static int color_vfprintf(FILE *fp, const char *color, const char *fmt, + va_list args, const char *trail) +{ + int r = 0; + + if (*color) + r += fprintf(fp, "%s", color); + r += vfprintf(fp, fmt, args); + if (*color) + r += fprintf(fp, "%s", PERF_COLOR_RESET); + if (trail) + r += fprintf(fp, "%s", trail); + return r; +} + + + +int color_fprintf(FILE *fp, const char *color, const char *fmt, ...) +{ + va_list args; + int r; + va_start(args, fmt); + r = color_vfprintf(fp, color, fmt, args, NULL); + va_end(args); + return r; +} + +int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...) +{ + va_list args; + int r; + va_start(args, fmt); + r = color_vfprintf(fp, color, fmt, args, "\n"); + va_end(args); + return r; +} + +/* + * This function splits the buffer by newlines and colors the lines individually. + * + * Returns 0 on success. + */ +int color_fwrite_lines(FILE *fp, const char *color, + size_t count, const char *buf) +{ + if (!*color) + return fwrite(buf, count, 1, fp) != 1; + while (count) { + char *p = memchr(buf, '\n', count); + if (p != buf && (fputs(color, fp) < 0 || + fwrite(buf, p ? p - buf : count, 1, fp) != 1 || + fputs(PERF_COLOR_RESET, fp) < 0)) + return -1; + if (!p) + return 0; + if (fputc('\n', fp) < 0) + return -1; + count -= p + 1 - buf; + buf = p + 1; + } + return 0; +} + + diff --git a/Documentation/perf_counter/util/color.h b/Documentation/perf_counter/util/color.h new file mode 100644 index 000000000000..5abfd379582b --- /dev/null +++ b/Documentation/perf_counter/util/color.h @@ -0,0 +1,36 @@ +#ifndef COLOR_H +#define COLOR_H + +/* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */ +#define COLOR_MAXLEN 24 + +#define PERF_COLOR_NORMAL "" +#define PERF_COLOR_RESET "\033[m" +#define PERF_COLOR_BOLD "\033[1m" +#define PERF_COLOR_RED "\033[31m" +#define PERF_COLOR_GREEN "\033[32m" +#define PERF_COLOR_YELLOW "\033[33m" +#define PERF_COLOR_BLUE "\033[34m" +#define PERF_COLOR_MAGENTA "\033[35m" +#define PERF_COLOR_CYAN "\033[36m" +#define PERF_COLOR_BG_RED "\033[41m" + +/* + * This variable stores the value of color.ui + */ +extern int perf_use_color_default; + + +/* + * Use this instead of perf_default_config if you need the value of color.ui. + */ +int perf_color_default_config(const char *var, const char *value, void *cb); + +int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty); +void color_parse(const char *value, const char *var, char *dst); +void color_parse_mem(const char *value, int len, const char *var, char *dst); +int color_fprintf(FILE *fp, const char *color, const char *fmt, ...); +int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...); +int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf); + +#endif /* COLOR_H */ diff --git a/Documentation/perf_counter/util/environment.c b/Documentation/perf_counter/util/environment.c index 9b1c8199e729..275b0ee345f5 100644 --- a/Documentation/perf_counter/util/environment.c +++ b/Documentation/perf_counter/util/environment.c @@ -6,3 +6,4 @@ #include "cache.h" const char *pager_program; +int pager_use_color = 1;