Stopped and ran the I/O performance analsys thingy:
Code:
I/O Performance Analysis:
Note that this may take a while depending on your hardware configuration.
Working Memory: 179 GB
Swap-file Size: 358 GB
Min I/O Size: 32.0 MB
Computation Threads: 32
Sequential Write: 852 MB/s
Sequential Read: 1.74 GB/s
Threshold Strided Write: 489 MB/s
Threshold Strided Read: 498 MB/s
Overlapped VST-I/O Ratio: 0.5933
Notes:
- The overall I/O speed is unable to keep up with the CPU(s).
The I/O throughput is 1.68549x slower than the CPU throughput.
Large computations will be significantly slowed down by disk access.
I/O bandwidth can be increased in a number of ways:
- Add more drives in parallel. This is the obvious way.
Many machines have 4 or more drives just to run this program!
- Defragment the drives.
- Use empty drives. Empty and freshly formatted drives perform best.
- Your threshold non-sequential I/O bandwidth is very high.
This may cause sub-optimal algorithm selection for large computations.
The optimal ratio between sequential/non-sequential I/O is about 3 to 1.
It is recommended to decrease the "Min I/O Size" setting and re-run
this benchmark.
- Your write bandwidth is significantly lower than your read bandwidth.
It is recommended to examine your storage configuration if you are
expecting balanced read/write speeds.
Press ENTER to continue . . .
These values don't seem bad?
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