Redis 选择hash还是string 存储数据？

看到一个问题， Redis strings vs Redis hashes to represent JSON: efficiency? 内容如下：

I want to store a JSON payload into redis. There's really 2 ways I can do this:

1. One using a simple string keys and values.
2. key:user, value:payload (the entire JSON blob which can be 100-200 KB)
3. SET user:1 payload
4. Using hashes
5. HSET user:1 username "someone"
6. HSET user:1 location "NY"
7. HSET user:1 bio "STRING WITH OVER 100 lines"

Keep in mind that if I use a hash, the value length isn't predictable. They're not all short such as the bio example above.

Which is more memory efficient? Using string keys and values, or using a hash?

string 和 hash 直观测试

首先我们先测试用数据测试一下，测试数据结构如下：

values = {
    "name": "gs",
    "age": 1
}

使用for 生成10w个key，key的生成规则为：

for i in range(100000):
    key = "object:%d" % i

把数据分别以hash