Valkey 9.2's forkless BGSAVE cuts my memory spike from 350MB to 10MB
Valkey 9.2.0-rc1's opt-in forkless snapshot held the memory spike during BGSAVE to about 10MB against fork()'s 350MB on a 1.1GB dataset, but took 70% longer and cost 15% of write throughput to do it.


