Docs Benchmarks

Benchmarks

SoliKV (with AOF persistence) vs Redis 7.0.15 — measured with redis-benchmark on the same machine

All SoliKV numbers below are with AOF persistence enabled (appendfsync everysec). The lock-free channel-based AOF writer adds less than 3% overhead — effectively zero within noise margin.

Standard Commands (200K ops, 50 clients)

Command	SoliKV+AOF	Redis 7.0	Delta
PING	124K req/s	122K req/s	+2%
SET	125K req/s	121K req/s	+3%
GET	122K req/s	122K req/s	tied
INCR	124K req/s	122K req/s	+2%
LPUSH	124K req/s	124K req/s	tied
RPUSH	123K req/s	122K req/s	+1%
LPOP	123K req/s	122K req/s	+1%
RPOP	123K req/s	124K req/s	-1%
SADD	123K req/s	122K req/s	+1%
HSET	125K req/s	123K req/s	+2%
MSET (10 keys)	125K req/s	121K req/s	+3%

SoliKV matches or exceeds Redis on all standard commands, even with AOF persistence enabled. All results within noise margin (~1-3%).

Pipeline (P=16, 500K ops, 50 clients)

Command	SoliKV+AOF	Redis 7.0	Delta
SET	1.81M req/s	1.66M req/s	+9%
GET	1.85M req/s	1.92M req/s	-4%

Pipeline write throughput: SoliKV beats Redis by 9% on pipelined SET even with AOF enabled. Pipeline read performance is within noise margin.

REST API (oha, 100 connections, 10s)

Operation	SoliKV+AOF	Notes
GET /kv/:key	597K req/s	Read path (no AOF)
PUT /kv/:key	539K req/s	Write path with AOF
PUT /kv/:key (200 conns)	581K req/s	Higher concurrency

REST API powered by Axum with Tokio. HTTP overhead is minimal thanks to keep-alive connections and efficient routing.

Sustained Load (1M SET, 50 clients)

Metric	SoliKV+AOF	Redis 7.0
Throughput	124K req/s steady	123K req/s steady
p50 latency	0.199ms	0.199ms
p99 latency	0.471ms	0.487ms

No throughput degradation over 1M operations. Identical p50 latency, lower p99 latency than Redis throughout.

Architecture & Optimizations

Thread-per-core sharding (mpsc channels)

Lock-free AOF via tokio::mpsc channel (256K buffer)

mimalloc global allocator

Pipeline batch locking (single lock per batch)

Write coalescing (single syscall per batch)

parking_lot Mutex (faster than std)

Hand-written RESP codec (zero-copy parsing)

CRC16 XMODEM hash slots (16384 slots)

Test Environment

Tool

redis-benchmark / oha

Baseline

Redis 7.0.15

Build

cargo build --release (Rust)

All benchmarks run on the same machine, same conditions. SoliKV numbers include AOF persistence (appendfsync everysec). Numbers represent stable throughput after warmup.