[llvm] [CI] Rework github workflow processing (PR #130317)

[Nathan Gauër via llvm-commits]

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@@ -191,25 +196,23 @@ def get_per_workflow_metrics(
 
             # The timestamp associated with the event is expected by Grafana to be
             # in nanoseconds.
-            created_at_ns = int(created_at.timestamp()) * 10**9
+            completed_at_ns = int(completed_at.timestamp()) * 10**9
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Keenuts wrote:

Yep, added a condition to check the metric age before adding it, thus dropping metrics older than 2 hours.

https://github.com/llvm/llvm-project/pull/130317