perf annotate: Print a sorted summary of annotated overhead lines (971738f3) · Commits · e / devices / android_kernel_teracube_emerald

tools/perf/builtin-annotate.c

+90 −21

Original line number	Original line	Diff line number	Diff line
	@@ -25,6 +25,10 @@
	#define SHOW_USER 2		#define SHOW_USER 2
	#define SHOW_HV 4		#define SHOW_HV 4

			#define MIN_GREEN 0.5
			#define MIN_RED 5.0


	static char const *input_name = "perf.data";		static char const *input_name = "perf.data";
	static char *vmlinux = "vmlinux";		static char *vmlinux = "vmlinux";

	@@ -88,6 +92,7 @@ typedef union event_union {


	struct sym_ext {		struct sym_ext {
			struct rb_node node;
	double percent;		double percent;
	char *path;		char *path;
	};		};
	@@ -1038,6 +1043,24 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
	return 0;		return 0;
	}		}

			static char *get_color(double percent)
			{
			char *color = PERF_COLOR_NORMAL;

			/*
			* We color high-overhead entries in red, mid-overhead
			* entries in green - and keep the low overhead places
			* normal:
			*/
			if (percent >= MIN_RED)
			color = PERF_COLOR_RED;
			else {
			if (percent > MIN_GREEN)
			color = PERF_COLOR_GREEN;
			}
			return color;
			}

	static int		static int
	parse_line(FILE file, struct symbol sym, __u64 start, __u64 len)		parse_line(FILE file, struct symbol sym, __u64 start, __u64 len)
	{		{
	@@ -1086,7 +1109,7 @@ parse_line(FILE file, struct symbol sym, __u64 start, __u64 len)
	const char *path = NULL;		const char *path = NULL;
	unsigned int hits = 0;		unsigned int hits = 0;
	double percent = 0.0;		double percent = 0.0;
	char *color = PERF_COLOR_NORMAL;		char *color;
	struct sym_ext *sym_ext = sym->priv;		struct sym_ext *sym_ext = sym->priv;

	offset = line_ip - start;		offset = line_ip - start;
	@@ -1099,17 +1122,7 @@ parse_line(FILE file, struct symbol sym, __u64 start, __u64 len)
	} else if (sym->hist_sum)		} else if (sym->hist_sum)
	percent = 100.0 * hits / sym->hist_sum;		percent = 100.0 * hits / sym->hist_sum;

	/*		color = get_color(percent);
	* We color high-overhead entries in red, mid-overhead
	* entries in green - and keep the low overhead places
	* normal:
	*/
	if (percent >= 5.0)
	color = PERF_COLOR_RED;
	else {
	if (percent > 0.5)
	color = PERF_COLOR_GREEN;
	}

	/*		/*
	* Also color the filename and line if needed, with		* Also color the filename and line if needed, with
	@@ -1138,6 +1151,28 @@ parse_line(FILE file, struct symbol sym, __u64 start, __u64 len)
	return 0;		return 0;
	}		}

			static struct rb_root root_sym_ext;

			static void insert_source_line(struct sym_ext *sym_ext)
			{
			struct sym_ext *iter;
			struct rb_node **p = &root_sym_ext.rb_node;
			struct rb_node *parent = NULL;

			while (*p != NULL) {
			parent = *p;
			iter = rb_entry(parent, struct sym_ext, node);

			if (sym_ext->percent > iter->percent)
			p = &(*p)->rb_left;
			else
			p = &(*p)->rb_right;
			}

			rb_link_node(&sym_ext->node, parent, p);
			rb_insert_color(&sym_ext->node, &root_sym_ext);
			}

	static void free_source_line(struct symbol *sym, int len)		static void free_source_line(struct symbol *sym, int len)
	{		{
	struct sym_ext *sym_ext = sym->priv;		struct sym_ext *sym_ext = sym->priv;
	@@ -1151,6 +1186,7 @@ static void free_source_line(struct symbol *sym, int len)
	free(sym_ext);		free(sym_ext);

	sym->priv = NULL;		sym->priv = NULL;
			root_sym_ext = RB_ROOT;
	}		}

	/* Get the filename:line for the colored entries */		/* Get the filename:line for the colored entries */
	@@ -1193,12 +1229,42 @@ static void get_source_line(struct symbol *sym, __u64 start, int len)
	goto next;		goto next;

	strcpy(sym_ext[i].path, path);		strcpy(sym_ext[i].path, path);
			insert_source_line(&sym_ext[i]);

	next:		next:
	pclose(fp);		pclose(fp);
	}		}
	}		}

			static void print_summary(char *filename)
			{
			struct sym_ext *sym_ext;
			struct rb_node *node;

			printf("\nSorted summary for file %s\n", filename);
			printf("----------------------------------------------\n\n");

			if (RB_EMPTY_ROOT(&root_sym_ext)) {
			printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
			return;
			}

			node = rb_first(&root_sym_ext);
			while (node) {
			double percent;
			char *color;
			char *path;

			sym_ext = rb_entry(node, struct sym_ext, node);
			percent = sym_ext->percent;
			color = get_color(percent);
			path = sym_ext->path;

			color_fprintf(stdout, color, " %7.2f %s", percent, path);
			node = rb_next(node);
			}
			}

	static void annotate_sym(struct dso dso, struct symbol sym)		static void annotate_sym(struct dso dso, struct symbol sym)
	{		{
	char *filename = dso->name;		char *filename = dso->name;
	@@ -1211,13 +1277,6 @@ static void annotate_sym(struct dso dso, struct symbol sym)
	if (dso == kernel_dso)		if (dso == kernel_dso)
	filename = vmlinux;		filename = vmlinux;

	printf("\n------------------------------------------------\n");
	printf(" Percent \| Source code & Disassembly of %s\n", filename);
	printf("------------------------------------------------\n");

	if (verbose >= 2)
	printf("annotating [%p] %30s : [%p] %30s\n", dso, dso->name, sym, sym->name);

	start = sym->obj_start;		start = sym->obj_start;
	if (!start)		if (!start)
	start = sym->start;		start = sym->start;
	@@ -1225,8 +1284,17 @@ static void annotate_sym(struct dso dso, struct symbol sym)
	end = start + sym->end - sym->start + 1;		end = start + sym->end - sym->start + 1;
	len = sym->end - sym->start;		len = sym->end - sym->start;

	if (print_line)		if (print_line) {
	get_source_line(sym, start, len);		get_source_line(sym, start, len);
			print_summary(filename);
			}

			printf("\n\n------------------------------------------------\n");
			printf(" Percent \| Source code & Disassembly of %s\n", filename);
			printf("------------------------------------------------\n");

			if (verbose >= 2)
			printf("annotating [%p] %30s : [%p] %30s\n", dso, dso->name, sym, sym->name);

	sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s", (__u64)start, (__u64)end, filename);		sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s", (__u64)start, (__u64)end, filename);

	@@ -1243,6 +1311,7 @@ static void annotate_sym(struct dso dso, struct symbol sym)
	}		}

	pclose(file);		pclose(file);
			if (print_line)
	free_source_line(sym, len);		free_source_line(sym, len);
	}		}