Dell PowerEdge M420 Manuel - Page 23

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Dell PowerEdge M420 Manuel
Improving NFS Performance on HPC Clusters with Dell Fluid Cache for DAS
Figure 12 shows that on a cold-cache read for sequential tests, the throughput of the DFC configuration
drops from a peak of ~3,050 MiB/s to ~1,050 Mi/s. Data needs to be pulled from backend storage and
hence the drop in performance. This is lower than the baseline throughput.
3500
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0
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Figure 12.
Cold-cache sequential reads
Cold-cache Sequential Reads
2
4
Number of concurrent clients
DFC-WB
DFC-WB-coldcache
Figure 13.
Cold-cache random reads
Cold-cache Random Reads
1
2
4
Number of concurrent clients
FC-WB
FC-WB-coldcache
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16
32
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16
48
64
baseline
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64
baseline
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