Add persistent program cache option #161
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Add a new config option `persist_program_cache` under [tuning] that: - Saves compiled SBPF programs to disk on shutdown - Reloads them on startup to speed up replay warmup Since program compilation is expensive and the same programs are used repeatedly, persisting the cache can significantly reduce warmup time after restarts. Also reduces vote account cache size from 5000 to 2000 entries since there are only ~600 validators on mainnet. Config: tuning.persist_program_cache = true/false (default: false)
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Summary
Adds a new config option to persist the compiled SBPF program cache across restarts:
Since SBPF program compilation is expensive and the same programs are used repeatedly during replay, persisting the cache can significantly reduce warmup time after restarts.
Changes
pkg/accountsdb/program_cache.gowith serialization/deserialization for the program cache[tuning]section:persist_program_cache = true/false(default: false)Usage
In
config.toml:The cache file is stored at
{accounts_path}/program_cache.gob.