Agent skill
redis-performance
Master Redis performance - memory optimization, slow log analysis, benchmarking, monitoring, and tuning strategies
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Install this agent skill to your Project
npx add-skill https://github.com/pluginagentmarketplace/custom-plugin-redis/tree/main/skills/redis-performance
SKILL.md
Redis Performance Skill
Memory Management
conf
maxmemory 4gb
maxmemory-policy allkeys-lru
maxmemory-samples 10
Eviction Policies
| Policy | Description | Use Case |
|---|---|---|
| noeviction | Error on full | Critical data |
| allkeys-lru | Evict LRU | General cache |
| volatile-lru | Evict LRU with TTL | Session cache |
| allkeys-lfu | Evict LFU | Frequency-based |
Memory Analysis
redis
INFO memory
MEMORY DOCTOR
MEMORY USAGE key
MEMORY STATS
redis-cli --bigkeys
Slow Log
redis
CONFIG SET slowlog-log-slower-than 10000 # 10ms
CONFIG SET slowlog-max-len 128
SLOWLOG GET 10
SLOWLOG LEN
SLOWLOG RESET
Common Slow Commands
| Command | Fix |
|---|---|
| KEYS * | Use SCAN |
| SMEMBERS | Use SSCAN |
| HGETALL | Use HMGET |
Benchmarking
bash
# Basic
redis-benchmark -q -n 100000
# With pipelining
redis-benchmark -q -n 100000 -P 16
# Specific commands
redis-benchmark -t set,get -n 100000 -q
Latency Monitoring
redis
CONFIG SET latency-monitor-threshold 100
LATENCY DOCTOR
LATENCY HISTORY command
Key Metrics
| Metric | Healthy | Warning | Critical |
|---|---|---|---|
| Memory | <75% | 75-90% | >90% |
| Ops/sec | Baseline | +50% | +100% |
| Latency | <1ms | 1-10ms | >10ms |
| Hit ratio | >95% | 90-95% | <90% |
Assets
performance-config.conf- Optimized config
References
PERFORMANCE_GUIDE.md- Tuning guide
Troubleshooting
High Memory
redis
INFO memory
redis-cli --bigkeys
Fix: Set eviction policy, add TTL
High Latency
redis
SLOWLOG GET 10
LATENCY DOCTOR
Fix: Optimize slow commands
Error Codes
| Code | Name | Recovery |
|---|---|---|
| PERF001 | OOM | Increase maxmemory or evict |
| PERF002 | HIGH_LAT | Check slow log |
| PERF003 | FRAG | MEMORY PURGE or restart |
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