本地redis（规格2核16G）与云服务redis（华为云或阿里云等，规格1G和16G）的性能对比。

第1个对比：内存规格都是16G时，1000字节时的写入结果
可以看到，在1000字节时性能都差不多

1.1 本地localhost的redis测试结果

/usr/local/redis/bin/redis-benchmark -h 127.0.0.1 -p 6379 -t set -c 100 -n 10000 -d 1000
====== SET ======
10000 requests completed in 0.10 seconds
100 parallel clients
1000 bytes payload
keep alive: 1

100.00% <= 0 milliseconds
104166.66 requests per second

1.2 云redis测试结果

/usr/local/redis/bin/redis-benchmark -h 192.168.0.102 -p 6379 -t set -c 100 -n 10000 -d 1000
====== SET ======
10000 requests completed in 0.11 seconds
100 parallel clients
1000 bytes payload
keep alive: 1

53.25% <= 1 milliseconds
99.77% <= 2 milliseconds
99.81% <= 4 milliseconds
100.00% <= 4 milliseconds
90090.09 requests per second

2.1 本地localhost的redis测试结果

/usr/local/redis/bin/redis-benchmark -h 127.0.0.1 -p 6379 -t set -c 100 -n 10000 -d 100000
====== SET ======
10000 requests completed in 0.58 seconds
100 parallel clients
100000 bytes payload
keep alive: 1
……
17211.71 requests per second

2.2 云redis测试结果

/usr/local/redis/bin/redis-benchmark -h 192.168.0.102 -p 6379 -t set -c 100 -n 10000 -d 100000
====== SET ======
10000 requests completed in 13.68 seconds
100 parallel clients
100000 bytes payload
keep alive: 1
……
730.94 requests per second

写入的值如果是1000字节以内的，差别不大。如果是大于1000字节的，特别是到了100000，就太慢了。