记录一下 redis 基准测试和监控搭建过程。

基准测试

redis 提供了基准测试工具 redis-benchmark。

测试机器配置：Mac OS 4c16g 256G

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// 默认模拟 10w 次请求，50个client并发，数据大小 3b. keep-alive 1 
~ redis-benchmark
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// Quiet. Just show query/sec values
~ redis-benchmark -q 
PING_INLINE: 80971.66 requests per second
PING_BULK: 85106.38 requests per second
SET: 93196.65 requests per second
GET: 99403.58 requests per second
INCR: 101729.40 requests per second
LPUSH: 95693.78 requests per second
RPUSH: 81234.77 requests per second
LPOP: 87108.02 requests per second
RPOP: 84033.61 requests per second
SADD: 84889.65 requests per second
HSET: 81300.81 requests per second
SPOP: 84104.29 requests per second
LPUSH (needed to benchmark LRANGE): 81037.28 requests per second
LRANGE_100 (first 100 elements): 21920.21 requests per second
LRANGE_300 (first 300 elements): 9130.75 requests per second
LRANGE_500 (first 450 elements): 5879.93 requests per second
LRANGE_600 (first 600 elements): 4888.30 requests per second
MSET (10 keys): 64683.05 requests per second

监控

使用 redis-exporter 上报 prometheus，接入 grafana 显示。

  1. 下载 redis-exporter ，本地 build 并且启动。
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git clone https://github.com/oliver006/redis_exporter.git
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cd redis_exporter
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go build .
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./redis_exporter --version
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// 启动后，浏览器访问 http://localhost:9121/metrics ，有数据表示启动成功
  1. 安装 prometheus
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// 下载地址: https://prometheus.io/docs/prometheus/latest/installation/
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// 解压后，cd prometheus-2.19.2.darwin-amd64, 配置 prometheus.yml 文件
// 在 scrape_configs 下，添加 redis-exporter 配置
  - job_name: 'redis_exporter'
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    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.
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    static_configs:
    - targets: ['localhost:9121']
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// 启动 prometheus.
// ./prometheus --config.file=prometheus.yml
// 浏览器访问 http://localhost:9090 有页面表示启动成功
  1. 安装 grafana
// 下载地址: https://grafana.com/get
brew update
brew install grafana
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// 启动 grafana
grafana-server --config=/usr/local/etc/grafana/grafana.ini --homepath /usr/local/share/grafana --packaging=brew cfg:default.paths.logs=/usr/local/var/log/grafana cfg:default.paths.data=/usr/local/var/lib/grafana cfg:default.paths.plugins=/usr/local/var/lib/grafana/plugins
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// 浏览器访问 http://localhost:3000 有页面表示启动成功。用户密码都是 admin
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// grafana 页面导入 redis_exporter 仪表盘插件  https://grafana.com/grafana/dashboards/763，
// 如提示没有 datasource，需要先创建一个 prometheus 类型的 datasource
​```