t3.small

Valkey 9.0 ElastiCache t3.small benchmark (run 3)

ElastiCache Performance Report

Replication Group: elasticache-perf-test-valkey-03064620  ·  Run: 20260603-064620  ·  2026-06-03 18:52:22.261 UTC - 2026-06-03 19:53:43.023 UTC
Engine: valkey
Version: 9.0
Node type: cache.t3.small
Nodes: 1
Mode: Non-Cluster
Avg Throughput
13,664ops/sec
Peak Throughput
19,815ops/sec
Throughput CV
11.3%
Avg Latency
0.44ms
Max Latency
1.15ms
Total Bandwidth
9.00MB/s
Avg ECS CPU
57.7%
Peak ECS CPU
82.7%
ECS Mem Peak
6MB
Loadgen Tasks
3
Avg Memory
77.37%
Max Memory
100.00%
Mem Headroom
-0.0%
Engine CPU Peak
30.1%
Cache Hit Rate
57.5%
Total Evictions
201,562
Min Free Mem
341MB
Peak Key Count
797,231
First Eviction
38m 37s
OOM Rejections
0
First OOM Rejection
None

Memtier Benchmark

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Infrastructure

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Client Latency

ECS EMF

ElastiCache Deep-Dive

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Tags:
AWS, Amazon ElastiCache, cache, valkey, t3.small, memtier, load testing, CloudWatch, cache hit rate, evictions

Valkey 9.0 ElastiCache t3.small benchmark (run 2)

ElastiCache Performance Report

Replication Group: elasticache-perf-test-valkey-28051926  ·  Run: 20260528-051926  ·  2026-05-28 05:25:50.510 UTC - 2026-05-28 06:25:22.366 UTC
Engine: valkey
Version: 9.0
Node type: cache.t3.small
Nodes: 1
Mode: Non-Cluster
Avg Throughput
10,629ops/sec
Peak Throughput
17,242ops/sec
Throughput CV
12.3%
Avg Latency
0.56ms
Max Latency
1.18ms
Client p50 Latency
0.28ms
Client p99 Latency
6.23ms
Client p99.9 Latency
44.00ms
Worst Stream p99
31.23ms
Worst Stream p99.9
59.39ms
Total Bandwidth
6.20MB/s
Avg ECS CPU
49.6%
Peak ECS CPU
78.4%
ECS Mem Peak
5MB
Loadgen Tasks
3
Avg Memory
69.13%
Max Memory
100.00%
Mem Headroom
-0.0%
Engine CPU Peak
28.1%
Cache Hit Rate
48.0%
Total Evictions
100,928
Min Free Mem
354MB
Peak Key Count
797,218
First Eviction
47m 09s
OOM Rejections
0
First OOM Rejection
None

Memtier Benchmark

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Infrastructure

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ElastiCache Deep-Dive

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Tags:
AWS, Amazon ElastiCache, cache, valkey, t3.small, memtier, load testing, CloudWatch, cache hit rate, evictions

Valkey 9.0 on ElastiCache t3.small: What Three One-Hour Runs Actually Agree On

Three completed Valkey 9.0 test executions on a single cache.t3.small Amazon ElastiCache node do not produce one stable throughput number. They do produce one repeatable operating condition: the cache reaches full memory and begins evicting keys.

Average throughput ranges from 9,133.3 to 13,663.6 ops/s, a 49.6% difference between the lowest and highest results. The exact throughput is therefore a range for this workload, while memory saturation is the stronger architectural finding.

Tags:
AWS, Amazon ElastiCache, valkey, Valkey 9.0, load testing, benchmark, memtier, evictions, cache, cache hit rate, t3.small, CloudWatch