mirror of
https://gitlab.com/pulsechaincom/lighthouse-pulse.git
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456b313665
## Issue Addressed NA ## Proposed Changes Modify the configuration of [GNU malloc](https://www.gnu.org/software/libc/manual/html_node/The-GNU-Allocator.html) to reduce memory footprint. - Set `M_ARENA_MAX` to 4. - This reduces memory fragmentation at the cost of contention between threads. - Set `M_MMAP_THRESHOLD` to 2mb - This means that any allocation >= 2mb is allocated via an anonymous mmap, instead of on the heap/arena. This reduces memory fragmentation since we don't need to keep growing the heap to find big contiguous slabs of free memory. - ~~Run `malloc_trim` every 60 seconds.~~ - ~~This shaves unused memory from the top of the heap, preventing the heap from constantly growing.~~ - Removed, see: https://github.com/sigp/lighthouse/pull/2299#issuecomment-825322646 *Note: this only provides memory savings on the Linux (glibc) platform.* ## Additional Info I'm going to close #2288 in favor of this for the following reasons: - I've managed to get the memory footprint *smaller* here than with jemalloc. - This PR seems to be less of a dramatic change than bringing in the jemalloc dep. - The changes in this PR are strictly runtime changes, so we can create CLI flags which disable them completely. Since this change is wide-reaching and complex, it's nice to have an easy "escape hatch" if there are undesired consequences. ## TODO - [x] Allow configuration via CLI flags - [x] Test on Mac - [x] Test on RasPi. - [x] Determine if GNU malloc is present? - I'm not quite sure how to detect for glibc.. This issue suggests we can't really: https://github.com/rust-lang/rust/issues/33244 - [x] Make a clear argument regarding the affect of this on CPU utilization. - [x] Test with higher `M_ARENA_MAX` values. - [x] Test with longer trim intervals - [x] Add some stats about memory savings - [x] Remove `malloc_trim` calls & code
97 lines
2.3 KiB
TOML
97 lines
2.3 KiB
TOML
[workspace]
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members = [
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"account_manager",
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"beacon_node",
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"beacon_node/beacon_chain",
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"beacon_node/client",
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"beacon_node/eth1",
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"beacon_node/eth2_libp2p",
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"beacon_node/http_api",
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"beacon_node/http_metrics",
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"beacon_node/network",
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"beacon_node/store",
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"beacon_node/timer",
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"boot_node",
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"common/account_utils",
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"common/clap_utils",
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"common/compare_fields",
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"common/compare_fields_derive",
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"common/deposit_contract",
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"common/directory",
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"common/eth2",
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"common/eth2_config",
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"common/eth2_interop_keypairs",
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"common/eth2_network_config",
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"common/eth2_wallet_manager",
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"common/hashset_delay",
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"common/lighthouse_metrics",
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"common/lighthouse_version",
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"common/lockfile",
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"common/logging",
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"common/lru_cache",
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"common/malloc_utils",
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"common/remote_signer_consumer",
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"common/sensitive_url",
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"common/slot_clock",
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"common/task_executor",
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"common/test_random_derive",
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"common/validator_dir",
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"common/warp_utils",
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"common/fallback",
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"common/monitoring_api",
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"consensus/cached_tree_hash",
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"consensus/int_to_bytes",
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"consensus/fork_choice",
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"consensus/proto_array",
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"consensus/safe_arith",
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"consensus/ssz",
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"consensus/ssz_derive",
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"consensus/ssz_types",
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"consensus/serde_utils",
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"consensus/state_processing",
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"consensus/swap_or_not_shuffle",
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"consensus/tree_hash",
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"consensus/tree_hash_derive",
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"crypto/bls",
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"crypto/eth2_hashing",
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"crypto/eth2_key_derivation",
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"crypto/eth2_keystore",
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"crypto/eth2_wallet",
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"lcli",
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"lighthouse",
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"lighthouse/environment",
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"remote_signer",
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"remote_signer/backend",
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"remote_signer/client",
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"slasher",
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"slasher/service",
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"testing/ef_tests",
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"testing/eth1_test_rig",
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"testing/node_test_rig",
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"testing/remote_signer_test",
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"testing/simulator",
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"testing/state_transition_vectors",
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"validator_client",
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"validator_client/slashing_protection",
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]
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[patch]
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[patch.crates-io]
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tree_hash = { path = "consensus/tree_hash" }
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tree_hash_derive = { path = "consensus/tree_hash_derive" }
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eth2_ssz = { path = "consensus/ssz" }
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eth2_ssz_derive = { path = "consensus/ssz_derive" }
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eth2_ssz_types = { path = "consensus/ssz_types" }
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eth2_hashing = { path = "crypto/eth2_hashing" }
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