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Support computing miss ratio curves using sim_cache. #5449
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@HaoyuHuang has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.
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Thanks @HaoyuHuang for the PR. I took a pass and left some comments.
@HaoyuHuang has updated the pull request. Re-import the pull request |
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LGTM.
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@HaoyuHuang is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.
@HaoyuHuang merged this pull request in 2d1dd5b. |
Summary: This PR adds a BlockCacheTraceSimulator that reports the miss ratios given different cache configurations. A cache configuration contains "cache_name,num_shard_bits,cache_capacities". For example, "lru, 1, 1K, 2K, 4M, 4G". When we replay the trace, we also perform lookups and inserts on the simulated caches. In the end, it reports the miss ratio for each tuple <cache_name, num_shard_bits, cache_capacity> in a output file. This PR also adds a main source block_cache_trace_analyzer so that we can run the analyzer in command line. Pull Request resolved: facebook#5449 Test Plan: Added tests for block_cache_trace_analyzer. COMPILE_WITH_ASAN=1 make check -j32. Differential Revision: D15797073 Pulled By: HaoyuHuang fbshipit-source-id: aef0c5c2e7938f3e8b6a10d4a6a50e6928ecf408
This PR adds a BlockCacheTraceSimulator that reports the miss ratios given different cache configurations. A cache configuration contains "cache_name,num_shard_bits,cache_capacities". For example, "lru, 1, 1K, 2K, 4M, 4G".
When we replay the trace, we also perform lookups and inserts on the simulated caches.
In the end, it reports the miss ratio for each tuple <cache_name, num_shard_bits, cache_capacity> in a output file.
This PR also adds a main source block_cache_trace_analyzer so that we can run the analyzer in command line.
Test plan:
Added tests for block_cache_trace_analyzer.
COMPILE_WITH_ASAN=1 make check -j32.