taler-typescript-core

commit 1ad4449348088db15c243c7cb2d0d5170b337c50
parent f061cbd2f3f7bb948926f143a7157cc2c9cb51d3
Author: Florian Dold <dold@taler.net>
Date:   Tue, 21 Jul 2026 10:59:04 +0200

util: compute the performance average from the running total

avgDurationMs was updated as (avg + sample) / 2, an exponential moving
average.  The table is sorted on this value, so it also drove eviction.

Diffstat:
M
packages/taler-util/src/performance.ts
 | 
8
++++----

1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/packages/taler-util/src/performance.ts b/packages/taler-util/src/performance.ts
@@ -229,9 +229,6 @@ export namespace PerformanceTable {
       tab[stat.type]?.push(stat);
     } else {
       const existing = tab[stat.type]!![index];
-      existing.avgDurationMs = Math.floor(
-        (existing.avgDurationMs + stat.totalDurationMs) / 2,
-      );
       existing.maxDurationMs = Math.max(
         existing.maxDurationMs,
         stat.maxDurationMs,
@@ -242,7 +239,10 @@ export namespace PerformanceTable {
       );
       existing.totalDurationMs =
         existing.totalDurationMs + stat.totalDurationMs;
-      existing.count += 1;
+      existing.count += stat.count;
+      existing.avgDurationMs = Math.floor(
+        existing.totalDurationMs / existing.count,
+      );
       tab[stat.type]!![index] = existing;
     }
   }