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Tiered Storage Benchmarking

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Siying Dong edited this page Jul 29, 2021 · 3 revisions

Simulated Hybrid File System

Simulated Hybrid File System simulates a hybrid file system by book tracking files hinted to be on Warm tier and when reads are issued against these files, latency is injected and throughput is limited. The book tracking is persistent in a file when the file system is closed, and can be read back when it is opened again. Note that if the process crashes in the middle, the tracking information is lost.

When running db_bench, option -simulate_hybrid_fs_file=<metadata_file_name> can enable this option.

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