X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=graph.c;h=5c865dcf2964fc4c809b1011d45fdbe45c9f3f65;hp=040e344ffcf4072f810c19315e98cf96b440655e;hb=6c784104cf90299aeec1d79f536a8e534c341c5f;hpb=f3a3176b359554ffe5e67bfcd5e63dbb1aa830b2

diff --git a/graph.c b/graph.c
index 040e344f..5c865dcf 100644
--- a/graph.c
+++ b/graph.c
@@ -180,7 +180,7 @@ static double maxdouble(double a, double b)
 static double find_double_values(struct graph_label *l, double_comparator cmp)
 {
 	struct flist_head *entry;
-	double answer, tmp;
+	double answer = 0.0, tmp;
 	int first = 1;
 
 	if (flist_empty(&l->value_list))
@@ -343,15 +343,15 @@ static void graph_draw_x_ticks(struct graph *g, cairo_t *cr,
 			continue;
 
 		/* Draw tick mark */
-		cairo_set_line_width(cr, 0.8);
+		cairo_set_line_width(cr, 1.0);
 		cairo_move_to(cr, tx, y2);
 		cairo_line_to(cr, tx, y2 + (y2 - y1) * 0.03);
 		cairo_stroke(cr);
 
 		/* draw grid lines */
 		cairo_save(cr);
-		cairo_set_dash(cr, dash, 2, 2.0);
-		cairo_set_line_width(cr, 0.5);
+		cairo_set_dash(cr, dash, 2, 0.66);
+		cairo_set_line_width(cr, 0.33);
 		cairo_move_to(cr, tx, y1);
 		cairo_line_to(cr, tx, y2);
 		cairo_stroke(cr);
@@ -373,7 +373,7 @@ static double graph_draw_y_ticks(struct graph *g, cairo_t *cr,
 	struct tickmark *tm;
 	double ty;
 	int i, power_of_ten;
-	static double dash[] = { 2.0, 2.0 };
+	static double dash[] = { 1.0, 2.0 };
 
 	nticks = calc_tickmarks(miny, maxy, nticks, &tm, &power_of_ten,
 		g->y_axis_unit_change_callback == NULL, g->base_offset);
@@ -412,8 +412,8 @@ static double graph_draw_y_ticks(struct graph *g, cairo_t *cr,
 
 		/* draw grid lines */
 		cairo_save(cr);
-		cairo_set_dash(cr, dash, 2, 2.0);
-		cairo_set_line_width(cr, 0.5);
+		cairo_set_dash(cr, dash, 2, 0.66);
+		cairo_set_line_width(cr, 0.33);
 		cairo_move_to(cr, x1, ty);
 		cairo_line_to(cr, x2, ty);
 		cairo_stroke(cr);
@@ -586,6 +586,8 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
 		goto skip_data;
 
 	cairo_set_line_width(cr, 1.5);
+	cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
+
 	flist_for_each(lentry, &g->label_list) {
 		i = flist_entry(lentry, struct graph_label, list);
 		first = 1;
@@ -600,9 +602,8 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
 			if (first) {
 				cairo_move_to(cr, tx, ty);
 				first = 0;
-			} else {
+			} else
 				cairo_line_to(cr, tx, ty);
-			}
 		}
 		cairo_stroke(cr);
 	}
@@ -852,6 +853,17 @@ static void graph_free_labels(struct graph *g)
 	}
 }
 
+void graph_clear_values(struct graph *g)
+{
+	struct flist_head *node;
+	struct graph_label *i;
+
+	flist_for_each(node, &g->label_list) {
+		i = flist_entry(node, struct graph_label, list);
+		graph_free_values(i);
+	}
+}
+
 void graph_set_color(struct graph *gr, graph_label_t label, double red,
 		     double green, double blue)
 {