From: Darrick J. Wong <djwong@xxxxxxxxxx>
The values reported here can reach very large values, so compute the
column width dynamically.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
---
libfrog/histogram.c | 29 +++++++++++++++++++++++++----
1 file changed, 25 insertions(+), 4 deletions(-)
diff --git a/libfrog/histogram.c b/libfrog/histogram.c
index c2f344a88..7cee6b350 100644
--- a/libfrog/histogram.c
+++ b/libfrog/histogram.c
@@ -110,10 +110,30 @@ hist_print(
{
unsigned int obs_w = strlen(hstr->observations);
unsigned int sum_w = strlen(hstr->sum);
+ unsigned int from_w = 7, to_w = 7;
unsigned int i;
- printf("%7s %7s %*s %*s %6s\n",
- _("from"), _("to"),
+ for (i = 0; i < hs->nr_buckets; i++) {
+ char buf[256];
+
+ if (hs->buckets[i].nr_obs == 0)
+ continue;
+
+ snprintf(buf, sizeof(buf) - 1, "%lld", hs->buckets[i].low);
+ from_w = max(from_w, strlen(buf));
+
+ snprintf(buf, sizeof(buf) - 1, "%lld", hs->buckets[i].high);
+ to_w = max(to_w, strlen(buf));
+
+ snprintf(buf, sizeof(buf) - 1, "%lld", hs->buckets[i].nr_obs);
+ obs_w = max(obs_w, strlen(buf));
+
+ snprintf(buf, sizeof(buf) - 1, "%lld", hs->buckets[i].sum);
+ sum_w = max(sum_w, strlen(buf));
+ }
+
+ printf("%*s %*s %*s %*s %6s\n",
+ from_w, _("from"), to_w, _("to"),
obs_w, hstr->observations,
sum_w, hstr->sum,
_("pct"));
@@ -122,8 +142,9 @@ hist_print(
if (hs->buckets[i].nr_obs == 0)
continue;
- printf("%7lld %7lld %*lld %*lld %6.2f\n",
- hs->buckets[i].low, hs->buckets[i].high,
+ printf("%*lld %*lld %*lld %*lld %6.2f\n",
+ from_w, hs->buckets[i].low,
+ to_w, hs->buckets[i].high,
obs_w, hs->buckets[i].nr_obs,
sum_w, hs->buckets[i].sum,
hs->buckets[i].sum * 100.0 / hs->tot_sum);
