ddsha441981

ddsha441981/pulse_map

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

6 good first / help-wanted issues · Rust · last activity Aug 17, 2026

1 stars 1 forks 1 watchers Rust Other
cache cache-line concurrent eviction hashmap lfu lru no-std performance rust sharded ttl
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6 Open Issues Need Help Last updated: Aug 17, 2026

Open Issues Need Help

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Verify eviction correctness in the fuzz harness with a shadow HashMap about 2 months ago
enhancement help wanted
ddsha441981/pulse_map
1

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

Rust
#cache#cache-line#concurrent#eviction#hashmap#lfu#lru#no-std#performance#rust#sharded#ttl
Add CI job to verify no_std compilation on thumbv7m-none-eabi 2 months ago
help wanted good first issue
ddsha441981/pulse_map
1

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

Rust
#cache#cache-line#concurrent#eviction#hashmap#lfu#lru#no-std#performance#rust#sharded#ttl
Run Miri on test suite to detect undefined behavior in unsafe code 2 months ago
help wanted
ddsha441981/pulse_map
1

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

Rust
#cache#cache-line#concurrent#eviction#hashmap#lfu#lru#no-std#performance#rust#sharded#ttl
Add loom tests for MetaWord AtomicU64 CAS correctness 2 months ago
help wanted
ddsha441981/pulse_map
1

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

Rust
#cache#cache-line#concurrent#eviction#hashmap#lfu#lru#no-std#performance#rust#sharded#ttl
Add 24-hour soak test for ConcurrentPulseMap and ShardedPulseMap 2 months ago
help wanted good first issue
ddsha441981/pulse_map
1

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

Rust
#cache#cache-line#concurrent#eviction#hashmap#lfu#lru#no-std#performance#rust#sharded#ttl
Add cargo-fuzz harness for insert/get/remove sequences 2 months ago
help wanted good first issue
ddsha441981/pulse_map
1

A CPU cache-line hash table with zero-cost eviction. 64-byte buckets, LFU+LRU hybrid, 16-shard concurrency, per-entry TTL. 6.5-12x faster than moka on 4-thread workloads.

Rust
#cache#cache-line#concurrent#eviction#hashmap#lfu#lru#no-std#performance#rust#sharded#ttl