Caching in XOZ v0.

[arsh]

Caching in XOZ v0.

mount-s3 \
--cache-xoz mp-iad-cache--use1-az6--x-s3 \
--cache-xoz-block-size=1 \
--allow-overwrite \
--profile default \
--region us-east-1 \
--metadata-ttl indefinite \
-l ~/mnt-logs \
-d --debug-crt \
mp-arn ~/mnt

Description of change

Benchmarking (throughput) results from an IAD instance in the same zone as the XOZ bucket.

# disk caching
[
  {
    "name": "sequential_read_small_file",
    "value": 1862.91904296875,
    "unit": "MiB/s"
  }
]
# xoz caching
[
  {
    "name": "sequential_read_small_file",
    "value": 148.47177734375,
    "unit": "MiB/s"
  }
]
# no caching
[
  {
    "name": "sequential_read_small_file",
    "value": 62.69189453125,
    "unit": "MiB/s"
  }
]

Relevant issues:

Does this change impact existing behavior?

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