Possibly-problematic-memory-usage.md

@@ -20,3 +20,35 @@
 * Missing Data:
   * requested memory per job and node
   * used data per job and Node
+
+
+High memory usage
+```
+Eingabe:
+* Metrik mem_used im node scope
+* Metadatum allocated_memory pro node
+* Parameter threshold für einen node
+
+Regel:
+memory_used    = mem_used.max('time')
+mem_threshold  = job.allocated_memory * threshold
+highmem_nodes  = memory_used > mem_threshold
+highmem        = highmem_nodes.any('all')
+
+Ausgabe: highmem ist True
+```
+
+Memory Leak
+```
+Eingabe:
+* Metrik mem_used im node scope
+* Metadatum duration
+* Metadatum allocated_memory pro node
+
+Regel:
+memory_slope     = mem_used.slope()
+memory_slope_avg = memory_slope.avg()
+memory_leak      = memory_slope_avg * job.duration > job.allocated_memory
+
+Ausgabe: memory_leak ist True
+```
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