@@ -12,7 +12,7 @@ ms.service: azure-netapp-files
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ms.workload : storage
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ms.tgt_pltfrm : na
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ms.topic : conceptual
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- ms.date : 06/25/2021
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+ ms.date : 07/22/2022
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ms.author : anfdocs
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---
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# Performance impact of Kerberos on Azure NetApp Files NFSv4.1 volumes
@@ -48,60 +48,18 @@ There are two areas of focus: light load and upper limit. The following lists de
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** Performance impact of krb5:**
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- <!--
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- Average IOPS: ~11351 / -53%
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- Average throughput: ~355 MB/s / -53%
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- Average latency: ~3.2 ms / +540%
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-
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-
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- * Low concurrency (r/w):
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- * Sequential latency increased 0.3 ms.
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- * Random I/O latency increased 0.2 ms.
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- * Metadata I/O latency increased 0.2 ms.
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- * High concurrency (r/w):
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- * Maximum sequential throughput was unimpacted by krb5.
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- * Maximum random I/O decreased by 30% for pure read workloads with the overall impact dropping to zero as the workload shifts to pure write.
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- * Maximum metadata workload decreased 30%.
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- -->
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+ * Average IOPS decreased by 53%
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+ * Average throughput decreased by 53%
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+ * Average latency increased by 3.2 ms
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** Performance impact of krb5i:**
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- <!--
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- Average IOPS: ~10856 / -55%
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- Average throughput: ~338 MB/s / -55%
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- Average latency: ~1.1 ms / +120%
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-
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- * Low concurrency (r/w):
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- * Sequential latency increased 0.5 ms.
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- * Random I/O latency increased 0.2 ms.
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- * Metadata I/O latency increased 0.2 ms.
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- * High concurrency (r/w):
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- * Maximum sequential throughput decreased by 70% overall regardless of the workload mixture.
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- * Maximum random I/O decreased by 50% for pure read workloads with the overall impact decreasing to 25% as the workload shifts to pure write.
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- * Maximum metadata workload decreased 30%.
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- -->
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-
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* Average IOPS decreased by 55%
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* Average throughput decreased by 55%
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* Average latency increased by 0.6 ms
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** Performance impact of krb5p:**
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- <!--
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- Average IOPS: ~5579 / -77%
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- Average throughput: ~174 MB/s / -77%
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- Average latency: ~2.1 ms / +320%
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-
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- * Low concurrency (r/w):
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- * Sequential latency increased 0.8 ms.
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- * Random I/O latency increased 0.2 ms.
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- * Metadata I/O latency increased 0.2 ms.
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- * High concurrency (r/w):
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- * Maximum sequential throughput decreased by 85% overall regardless of the workload mixture.
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- * Maximum random I/O decreased by 65% for pure read workloads with the overall impact decreasing to 43% as the workload shifts to pure write.
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- * Maximum metadata workload decreased 30%.
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- -->
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-
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* Average IOPS decreased by 77%
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* Average throughput decreased by 77%
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* Average latency increased by 1.6 ms
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