liusf1993

**Describe the bug** Cpu is high while saving snapshots **To Reproduce** Steps to reproduce the behavior: 1. Memory usage ``` 127.0.0.1:6379> info memory # Memory used_memory:30743621312 used_memory_human:28.63GiB used_memory_peak:35570662920 used_memory_rss:40014254080 used_memory_rss_human:37.27GiB...