Merge pull request #986 from drmingdrmer/33-faq-metrics #2920

Job	Run time
openraft-test-bench (nightly)	53s
stores (memstore)	41s
cluster-benchmark (cluster_benchmark)	46s
stores (rocksstore)	5m 59s
examples (stable, raft-kv-memstore)	2m 11s
examples (stable, raft-kv-rocksdb)	7m 57s
stores (rocksstore-compat07)	6m 9s
examples (nightly, raft-kv-memstore)	2m 4s
external-stores (stores/rocksstore-v2)	5m 53s
stores (sledstore)	54s
examples (nightly, raft-kv-rocksdb)	12m 0s
lint	6m 25s
openraft-feature-test (nightly)	53s
openraft-test (stable, 0)	2m 51s
openraft-feature-test (nightly, serde)	54s
openraft-test (nightly, 30)	3m 9s
Build (nightly, bench,serde,bt,singlethreaded)	47s
openraft-feature-test (nightly, single-term-leader)	48s
openraft-test (nightly, 0, single-term-leader)	2m 57s
openraft-feature-test (nightly, single-term-leader,serde,singlethreaded)	52s
tests-feature-test (nightly)	2m 44s
tests-feature-test (nightly, single-term-leader)	2m 41s
tests-feature-test (nightly, loosen-follower-log-revert)	2m 51s
	1h 13m 19s

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