[PATCH btt] Add plug totals

[Alan D. Brunelle]

From:  Alan D. Brunelle <[EMAIL PROTECTED]>

Added in plug totals

(Also, moved plug information header so it only prints out once for all
devices, rather than per-device.)

Signed-off-by: Alan D. Brunelle <[EMAIL PROTECTED]>
---

 btt/output.c |   39 ++++++++++++++++++++++++++++++++-------
 1 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/btt/output.c b/btt/output.c
index d85937c..f317b43 100644
--- a/btt/output.c
+++ b/btt/output.c
@@ -433,27 +433,52 @@ void output_pip_avgs(FILE *ofp)
        fprintf(ofp, "\n");
 }
 
+int n_plugs;
+struct plug_info {
+       long n_plugs, n_timer_unplugs;
+       double t_percent;
+} plug_info;
+
 void __dip_output_plug(struct d_info *dip, void *arg)
 {
        char dev_info[15];
        FILE *ofp = arg;
-       double delta;
+       double delta, pct;
 
        if (dip->is_plugged) dip_unplug(dip->device, dip->end_time, 0);
 
-       fprintf(ofp, "%10s | %10s %10s  | %s\n", 
-               "DEV", "# Plugs", "# Timer Us", "% Time Q Plugged");
-       fprintf(ofp, "---------- | ---------- ----------  | 
----------------\n");
        delta = dip->end_time - dip->start_time;
-       fprintf(ofp, "%10s | %10d(%10d) | %6.2lf%%\n", 
+       pct = 100.0 * ((dip->plugged_time / delta) / delta);
+
+       fprintf(ofp, "%10s | %10d(%10d) | %13.9lf%%\n", 
                make_dev_hdr(dev_info, 15, dip), 
-               dip->nplugs, dip->n_timer_unplugs, 
-               100.0 * ((dip->plugged_time / delta) / delta));
+               dip->nplugs, dip->n_timer_unplugs, pct);
+
+       n_plugs++;
+       plug_info.n_plugs += dip->nplugs;
+       plug_info.n_timer_unplugs += dip->n_timer_unplugs;
+       plug_info.t_percent += pct;
+}
+
+void __dip_output_plug_all(FILE *ofp, struct plug_info *p)
+{
+       fprintf(ofp, "---------- | ---------- ----------  | 
----------------\n");
+       fprintf(ofp, "%10s | %10s %10s  | %s\n", 
+               "DEV", "# Plugs", "# Timer Us", "% Time Q Plugged");
+       fprintf(ofp, "%10s | %10ld(%10ld) | %13.9lf%%\n", "OVERALL",
+               p->n_plugs / n_plugs, p->n_timer_unplugs / n_plugs, 
+               p->t_percent / n_plugs);
+
 }
 
 void output_plug_info(FILE *ofp)
 {
+       fprintf(ofp, "%10s | %10s %10s  | %s\n", 
+               "DEV", "# Plugs", "# Timer Us", "% Time Q Plugged");
+       fprintf(ofp, "---------- | ---------- ----------  | 
----------------\n");
        dip_foreach_out(__dip_output_plug, ofp);
+       if (n_plugs > 1)
+               __dip_output_plug_all(ofp, &plug_info);
        fprintf(ofp, "\n");
 }