补充一条，我发现tiflash并没有挂，cpu一直有一个核在跑
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 99.9 0.8 1482256 822136 ? Ssl Nov11 4361:03 /tiflash/tiflash server --config-file /data0/config.toml
Kernal
[root@test-tiflash-0 /]# uname -a
Linux test-tiflash-0 5.4.0-1088-aws #96~18.04.1-Ubuntu SMP Mon Oct 17 02:57:48 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux