perf report: Add raw displaying of per-thread counters

If --pretty=raw is given to perf report -T, it now displays one
line per-thread per-counter with the raw event id added.

We get:
 #   PID    TID              Name  Raw    Count
   18608  18609      cache-misses  28e   416744
   18608  18609  cache-references  28f  6456792
   18608  18608      cache-misses  28e   448219
   18608  18608  cache-references  28f  7270244
 instead of:

#   PID    TID  cache-misses  cache-references
   18608  18609        416744           6456792
   18608  18608        448219           7270244
Signed-off-by: NBrice Goglin <Brice.Goglin@inria.fr>
Acked-by: NPeter Zijlstra <peterz@infradead.org>
LKML-Reference: <4A802008.5050409@inria.fr>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

tools/perf/builtin-report.c

@@ -57,6 +57,9 @@ static int		show_nr_samples;
 static int		show_threads;
 static struct perf_read_values	show_threads_values;
 
+static char		default_pretty_printing_style[] = "normal";
+static char		*pretty_printing_style = default_pretty_printing_style;
+
 static unsigned long	page_size;
 static unsigned long	mmap_window = 32;
 
@@ -1401,6 +1404,9 @@ static size_t output__fprintf(FILE *fp, u64 total_samples)
 	size_t ret = 0;
 	unsigned int width;
 	char *col_width = col_width_list_str;
+	int raw_printing_style;
+
+	raw_printing_style = !strcmp(pretty_printing_style, "raw");
 
 	init_rem_hits();
 
@@ -1478,7 +1484,8 @@ static size_t output__fprintf(FILE *fp, u64 total_samples)
 	free(rem_sq_bracket);
 
 	if (show_threads)
-		perf_read_values_display(fp, &show_threads_values);
+		perf_read_values_display(fp, &show_threads_values,
+					 raw_printing_style);
 
 	return ret;
 }
@@ -2091,6 +2098,8 @@ static const struct option options[] = {
 		    "Show a column with the number of samples"),
 	OPT_BOOLEAN('T', "threads", &show_threads,
 		    "Show per-thread event counters"),
+	OPT_STRING(0, "pretty", &pretty_printing_style, "key",
+		   "pretty printing style key: normal raw"),
 	OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 		   "sort by key(s): pid, comm, dso, symbol, parent"),
 	OPT_BOOLEAN('P', "full-paths", &full_paths,

tools/perf/util/values.c

@@ -126,7 +126,8 @@ void perf_read_values_add_value(struct perf_read_values *values,
 	values->value[tindex][cindex] = value;
 }
 
-void perf_read_values_display(FILE *fp, struct perf_read_values *values)
+static void perf_read_values__display_pretty(FILE *fp,
+					     struct perf_read_values *values)
 {
 	int i, j;
 	int pidwidth, tidwidth;
@@ -169,3 +170,62 @@ void perf_read_values_display(FILE *fp, struct perf_read_values *values)
 		fprintf(fp, "\n");
 	}
 }
+
+static void perf_read_values__display_raw(FILE *fp,
+					  struct perf_read_values *values)
+{
+	int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
+	int i, j;
+
+	tidwidth = 3; /* TID */
+	pidwidth = 3; /* PID */
+	namewidth = 4; /* "Name" */
+	rawwidth = 3; /* "Raw" */
+	countwidth = 5; /* "Count" */
+
+	for (i = 0; i < values->threads; i++) {
+		width = snprintf(NULL, 0, "%d", values->pid[i]);
+		if (width > pidwidth)
+			pidwidth = width;
+		width = snprintf(NULL, 0, "%d", values->tid[i]);
+		if (width > tidwidth)
+			tidwidth = width;
+	}
+	for (j = 0; j < values->counters; j++) {
+		width = strlen(values->countername[j]);
+		if (width > namewidth)
+			namewidth = width;
+		width = snprintf(NULL, 0, "%llx", values->counterrawid[j]);
+		if (width > rawwidth)
+			rawwidth = width;
+	}
+	for (i = 0; i < values->threads; i++) {
+		for (j = 0; j < values->counters; j++) {
+			width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
+			if (width > countwidth)
+				countwidth = width;
+		}
+	}
+
+	fprintf(fp, "# %*s  %*s  %*s  %*s  %*s\n",
+		pidwidth, "PID", tidwidth, "TID",
+		namewidth, "Name", rawwidth, "Raw",
+		countwidth, "Count");
+	for (i = 0; i < values->threads; i++)
+		for (j = 0; j < values->counters; j++)
+			fprintf(fp, "  %*d  %*d  %*s  %*llx  %*Lu\n",
+				pidwidth, values->pid[i],
+				tidwidth, values->tid[i],
+				namewidth, values->countername[j],
+				rawwidth, values->counterrawid[j],
+				countwidth, values->value[i][j]);
+}
+
+void perf_read_values_display(FILE *fp, struct perf_read_values *values,
+			      int raw)
+{
+	if (raw)
+		perf_read_values__display_raw(fp, values);
+	else
+		perf_read_values__display_pretty(fp, values);
+}

tools/perf/util/values.h

@@ -21,6 +21,7 @@ void perf_read_values_add_value(struct perf_read_values *values,
 				u32 pid, u32 tid,
 				u64 rawid, char *name, u64 value);
 
-void perf_read_values_display(FILE *fp, struct perf_read_values *values);
+void perf_read_values_display(FILE *fp, struct perf_read_values *values,
+			      int raw);
 
 #endif /* _PERF_VALUES_H */