m7g.16xlarge (arm64) -- complete specs here

valkey-benchmark -t GET -c 50 running concurrently with
valkey-benchmark -t SET -c 8
all runs are configured with
appendonly yes, appendfsync always, --io-threads 8; loopback, AOF on NVMe,

Baseline == upstream unstable
bio-offload == #3381 with bio-aof-offload-enabled yes.

GET at -c 50 measured against a steady -c 8 background SET load, --io-threads 8.

Done — added a Value column and renamed the systems to baseline / bio-offload.

GET at -c 50 against a steady -c 8 background SET load; appendfsync always, --io-threads 8, loopback, NVMe, median of 3.

Read-heavy (GET + SET)	Value	Op	TPS (K req/s)	MB/s	P50 (µs)	P95 (µs)	P99 (µs)	Notes
baseline	64 B	GET	5.45	0.35	10,263	11,039	11,623	GET c=50 + c=8 background SET; fsync=always
bio-offload	64 B	GET	70.67	4.52	359	615	695
delta	64 B	GET	+1196.17%	+1196.17%	−96.50%	−94.43%	−94.02%
baseline	256 B	GET	5.63	1.44	10,351	11,111	11,575
bio-offload	256 B	GET	71.63	18.34	359	639	727
delta	256 B	GET	+1171.50%	+1171.50%	−96.53%	−94.25%	−93.72%
baseline	1024 B	GET	5.58	5.72	10,527	11,407	11,839
bio-offload	1024 B	GET	71.28	72.99	359	671	743
delta	1024 B	GET	+1176.44%	+1176.44%	−96.59%	−94.12%	−93.72%

Pure SET at -c 50, no concurrent reads; appendfsync always, --io-threads 8, loopback, NVMe, median of 3.

Write-only (SET)	Value	Op	TPS (K req/s)	MB/s	P50 (µs)	P95 (µs)	P99 (µs)	Notes
baseline	64 B	SET	4.84	0.31	10,831	11,359	12,543	isolated SET c=50; fsync=always
bio-offload	64 B	SET	9.02	0.58	5,463	6,087	6,503
delta	64 B	SET	+86.56%	+86.56%	−49.56%	−46.41%	−48.16%
baseline	256 B	SET	4.71	1.21	11,095	11,607	12,383
bio-offload	256 B	SET	8.85	2.27	5,575	6,167	6,407
delta	256 B	SET	+87.93%	+87.93%	−49.75%	−46.87%	−48.26%
baseline	1024 B	SET	4.56	4.67	11,487	12,039	13,287
bio-offload	1024 B	SET	8.29	8.49	5,943	6,575	7,063
delta	1024 B	SET	+81.93%	+81.93%	−48.26%	−45.39%	−46.84%

Delta convention: bio-offload vs baseline. TPS / MB/s positive = higher throughput (better); P50/P95/P99 negative = lower latency (better).

Performance testing of improvements #4029

Description