From 833e414c6dd82714e4c0ecad63d2457c063bd153 Mon Sep 17 00:00:00 2001
From: Rob Thijssen <rthijssen@gmail.com>
Date: Fri, 4 Sep 2026 08:55:36 +0300
Subject: [PATCH] dashboard: scale the leaderboard's blocks bar to its own
 column; blank NaN timing cells

After the multi-query join Grafana ranged the gauge cell across every numeric
field in the frame, so 31 blocks was drawn against a 675 MH/s maximum.
fieldMinMax on the blocks column restores the per-column scale. The gap and
drift quantiles are filtered with expr == expr so authors without samples in
the range show a blank cell instead of NaN.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CBgs2nSi4H2mdh8kD8vMX5
---
 asset/grafana/quantus.json | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/asset/grafana/quantus.json b/asset/grafana/quantus.json
index b7fc524..d4d6f9d 100644
--- a/asset/grafana/quantus.json
+++ b/asset/grafana/quantus.json
@@ -9,7 +9,7 @@
   ],
   "timezone": "browser",
   "schemaVersion": 39,
-  "version": 14,
+  "version": 15,
   "refresh": "30s",
   "time": {
     "from": "now-6h",
@@ -1749,7 +1749,7 @@
           },
           "editorMode": "code",
           "refId": "C",
-          "expr": "histogram_quantile(0.1, sum by (preimage, le) (increase(quantus_block_gap_seconds_bucket{preimage!~\"all|other\"}[$__range])))",
+          "expr": "(histogram_quantile(0.1, sum by (preimage, le) (increase(quantus_block_gap_seconds_bucket{preimage!~\"all|other\"}[$__range])))) == (histogram_quantile(0.1, sum by (preimage, le) (increase(quantus_block_gap_seconds_bucket{preimage!~\"all|other\"}[$__range]))))",
           "instant": true,
           "range": false,
           "format": "table"
@@ -1761,7 +1761,7 @@
           },
           "editorMode": "code",
           "refId": "D",
-          "expr": "histogram_quantile(0.5, sum by (preimage, le) (increase(quantus_block_timestamp_drift_seconds_bucket{preimage!~\"all|other\"}[$__range])))",
+          "expr": "(histogram_quantile(0.5, sum by (preimage, le) (increase(quantus_block_timestamp_drift_seconds_bucket{preimage!~\"all|other\"}[$__range])))) == (histogram_quantile(0.5, sum by (preimage, le) (increase(quantus_block_timestamp_drift_seconds_bucket{preimage!~\"all|other\"}[$__range]))))",
           "instant": true,
           "range": false,
           "format": "table"
@@ -1898,6 +1898,10 @@
               {
                 "id": "min",
                 "value": 0
+              },
+              {
+                "id": "fieldMinMax",
+                "value": true
               }
             ]
           },
-- 
2.52.0