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Limit number of rocksdb background threads (#4660)

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Piotr Wójcik 2024-06-28 10:48:31 +02:00 • committed by GitHub
commit f7232cd0dc
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2 changed files with 5 additions and 4 deletions
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2
nano/lib/rocksdbconfig.cpp
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@ -6,7 +6,7 @@ nano::error nano::rocksdb_config::serialize_toml (nano::tomlconfig & toml) const
{ {
toml.put ("enable", enable, "Whether to use the RocksDB backend for the ledger database.\ntype:bool"); toml.put ("enable", enable, "Whether to use the RocksDB backend for the ledger database.\ntype:bool");
toml.put ("memory_multiplier", memory_multiplier, "This will modify how much memory is used represented by 1 (low), 2 (medium), 3 (high). Default is 2.\ntype:uint8"); toml.put ("memory_multiplier", memory_multiplier, "This will modify how much memory is used represented by 1 (low), 2 (medium), 3 (high). Default is 2.\ntype:uint8");
toml.put ("io_threads", io_threads, "Number of threads to use with the background compaction and flushing. Number of hardware threads is recommended.\ntype:uint32"); toml.put ("io_threads", io_threads, "Number of threads to use with the background compaction and flushing.\ntype:uint32");
return toml.get_error (); return toml.get_error ();
} }

7
nano/lib/rocksdbconfig.hpp
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@ -17,14 +17,15 @@ public:
enable{ using_rocksdb_in_tests () } enable{ using_rocksdb_in_tests () }
{ {
} }
nano::error serialize_toml (nano::tomlconfig & toml_a) const;
nano::error deserialize_toml (nano::tomlconfig & toml_a); nano::error serialize_toml (nano::tomlconfig &) const;
nano::error deserialize_toml (nano::tomlconfig &);
/** To use RocksDB in tests make sure the environment variable TEST_USE_ROCKSDB=1 is set */ /** To use RocksDB in tests make sure the environment variable TEST_USE_ROCKSDB=1 is set */
static bool using_rocksdb_in_tests (); static bool using_rocksdb_in_tests ();
bool enable{ false }; bool enable{ false };
uint8_t memory_multiplier{ 2 }; uint8_t memory_multiplier{ 2 };
unsigned io_threads{ nano::hardware_concurrency () }; unsigned io_threads{ std::max (nano::hardware_concurrency () / 2, 1u) };
}; };
} }