Add completion percentiles to results output
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/gfio.c b/gfio.c
index 3bd0c24..2560412 100644
--- a/gfio.c
+++ b/gfio.c
@@ -188,6 +188,132 @@
gtk_entry_set_text(GTK_ENTRY(entry), tmp);
}
+#define ALIGN_LEFT 1
+#define ALIGN_RIGHT 2
+#define INVISIBLE 4
+#define UNSORTABLE 8
+
+GtkTreeViewColumn *tree_view_column(GtkWidget *tree_view, int index, const char *title, unsigned int flags)
+{
+ GtkCellRenderer *renderer;
+ GtkTreeViewColumn *col;
+ double xalign = 0.0; /* left as default */
+ PangoAlignment align;
+ gboolean visible;
+
+ align = (flags & ALIGN_LEFT) ? PANGO_ALIGN_LEFT :
+ (flags & ALIGN_RIGHT) ? PANGO_ALIGN_RIGHT :
+ PANGO_ALIGN_CENTER;
+ visible = !(flags & INVISIBLE);
+
+ renderer = gtk_cell_renderer_text_new();
+ col = gtk_tree_view_column_new();
+
+ gtk_tree_view_column_set_title(col, title);
+ if (!(flags & UNSORTABLE))
+ gtk_tree_view_column_set_sort_column_id(col, index);
+ gtk_tree_view_column_set_resizable(col, TRUE);
+ gtk_tree_view_column_pack_start(col, renderer, TRUE);
+ gtk_tree_view_column_add_attribute(col, renderer, "text", index);
+ gtk_object_set(GTK_OBJECT(renderer), "alignment", align, NULL);
+ switch (align) {
+ case PANGO_ALIGN_LEFT:
+ xalign = 0.0;
+ break;
+ case PANGO_ALIGN_CENTER:
+ xalign = 0.5;
+ break;
+ case PANGO_ALIGN_RIGHT:
+ xalign = 1.0;
+ break;
+ }
+ gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), xalign, 0.5);
+ gtk_tree_view_column_set_visible(col, visible);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(tree_view), col);
+ return col;
+}
+
+static GtkWidget *gfio_output_clat_percentiles(unsigned int *ovals,
+ fio_fp64_t *plist,
+ unsigned int len,
+ const char *base,
+ unsigned int scale)
+{
+ GType types[FIO_IO_U_LIST_MAX_LEN];
+ GtkWidget *tree_view;
+ GtkTreeSelection *selection;
+ GtkListStore *model;
+ GtkTreeIter iter;
+ int i;
+
+ for (i = 0; i < len; i++)
+ types[i] = G_TYPE_INT;
+
+ model = gtk_list_store_newv(len, types);
+
+ tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
+ gtk_widget_set_can_focus(tree_view, FALSE);
+
+ selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
+ gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
+
+ for (i = 0; i < len; i++) {
+ char fbuf[8];
+
+ sprintf(fbuf, "%2.2f%%", plist[i].u.f);
+ tree_view_column(tree_view, i, fbuf, ALIGN_RIGHT | UNSORTABLE);
+ }
+
+ gtk_list_store_append(model, &iter);
+
+ for (i = 0; i < len; i++)
+ gtk_list_store_set(model, &iter, i, ovals[i], -1);
+
+ return tree_view;
+}
+
+static void gfio_show_clat_percentiles(GtkWidget *vbox, struct thread_stat *ts,
+ int ddir)
+{
+ unsigned int *io_u_plat = ts->io_u_plat[ddir];
+ unsigned long nr = ts->clat_stat[ddir].samples;
+ fio_fp64_t *plist = ts->percentile_list;
+ unsigned int *ovals, len, minv, maxv, scale_down;
+ const char *base;
+ GtkWidget *tree_view, *frame, *hbox;
+ char tmp[64];
+
+ len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
+ if (!len)
+ goto out;
+
+ /*
+ * We default to usecs, but if the value range is such that we
+ * should scale down to msecs, do that.
+ */
+ if (minv > 2000 && maxv > 99999) {
+ scale_down = 1;
+ base = "msec";
+ } else {
+ scale_down = 0;
+ base = "usec";
+ }
+
+ tree_view = gfio_output_clat_percentiles(ovals, plist, len, base, scale_down);
+
+ sprintf(tmp, "Completion percentiles (%s)", base);
+ frame = gtk_frame_new(tmp);
+ gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, FALSE, 5);
+
+ hbox = gtk_hbox_new(FALSE, 3);
+ gtk_container_add(GTK_CONTAINER(frame), hbox);
+
+ gtk_box_pack_start(GTK_BOX(hbox), tree_view, TRUE, FALSE, 3);
+out:
+ if (ovals)
+ free(ovals);
+}
+
static void gfio_show_lat(GtkWidget *vbox, const char *name, unsigned long min,
unsigned long max, double mean, double dev)
{
@@ -282,6 +408,8 @@
gfio_show_lat(vbox, "Completion latency", min, max, mean, dev);
if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
gfio_show_lat(vbox, "Total latency", min, max, mean, dev);
+ if (ts->clat_percentiles)
+ gfio_show_clat_percentiles(vbox, ts, ddir);
free(io_p);
free(bw_p);