Bug Report

What version of TiKV are you using?

./tikv-server -V
TiKV
Release Version: 8.5.0
Edition: Community
Git Commit Hash: a2c58c9
Git Commit Branch: HEAD
UTC Build Time: 2024-12-18 03:28:49
Rust Version: rustc 1.77.0-nightly (89e2160c4 2023-12-27)
Enable Features: memory-engine pprof-fp jemalloc mem-profiling portable sse test-engine-kv-rocksdb test-engine-raft-raft-engine trace-async-tasks openssl-vendored
Profile: dist_release
2025-01-04T11:04:00.159+0800

What operating system and CPU are you using?

30c/100GB

Steps to reproduce

1、enable IME
2、pause scheduler
3、run mvcc select

What did you expect?

qps and latency can keep stability

What did happened?

Regions periodically evict and load which lead to latency jitter