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by njohnson41
3734 days ago
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Interestingly, that may be the new ordering if the disks are SSDs, but the typical seek latency on a spinning disk (~5 ms) is definitely higher than the latency to read data from another machine's memory across ethernet (a few hundred us), and even the bandwidths are comparable (~150 MB/s). So, now it has jumped from (disk -> network -> memory -> ...) to (network -> disk -> memory -> ...), which is a big change. |
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