feat: trace memory for some data structures

[yangby-cryptape]

Features

• There are many data structures (mostly HashMap) to store states in memory. Some of them have no size limit.
  This PR add a special log target to trace the size of these data structures, so that we can analyze them by running performance test.
• This PR is base on feat: add a feature to enable jemalloc profiling #1940. The first three commits are same as the commits in chore: print disconnect reason as info level log #1904.
  Only the last commit is a new commit.
  So, please review chore: print disconnect reason as info level log #1904 at first, then review the last commit in this PR.

Usage

This function will be enabled when compile the executable with feature measure-collections.

[yangby-cryptape]

An example of log outpus:

2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  CurrentProcess { pid: 16584, rss: 720148 KiB, virt: 5333816 KiB, Jemalloc: { allocated: 568917 KiB, resident: 673336 KiB, active: 583136 KiB, mapped: 740500 KiB, retained: 523116 KiB, metadata: 18437 KiB } }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.block-status-map             , len:   860679, cap:   916867 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.header-map                   , len:   832333, cap:   902890 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.inflight-blocks.blocks       , len:        1, cap:        1 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.inflight-blocks.states       , len:        8, cap:       28 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashSet              { tag: sync-state.inflight-proposals           , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.known-txs.inner              , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.misbehavior                  , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.orphan-block-pool.blocks     , len:        0, cap:     1792 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.orphan-block-pool.parents    , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.peers.state                  , len:        8, cap:       14 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.pending-compact-blocks       , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.gap.inner.entries               , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.gap.inner.links                 , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.orphan.edges                    , len:        0, cap:        0 }
2020-02-17 15:26:37.020 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.orphan.vertices                 , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.pending.inner.entries           , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.pending.inner.links             , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.edges.deps             , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.edges.inner            , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.edges.outer            , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.inner.entries          , len:        0, cap:        0 }
2020-02-17 15:26:37.021 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.inner.links            , len:        0, cap:        0 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  CurrentProcess { pid: 16584, rss: 725692 KiB, virt: 5333816 KiB, Jemalloc: { allocated: 568934 KiB, resident: 681988 KiB, active: 583064 KiB, mapped: 749148 KiB, retained: 514468 KiB, metadata: 18440 KiB } }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.block-status-map             , len:   860494, cap:   916754 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.header-map                   , len:   832148, cap:   902772 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.inflight-blocks.blocks       , len:        1, cap:        1 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.inflight-blocks.states       , len:       15, cap:       28 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashSet              { tag: sync-state.inflight-proposals           , len:        0, cap:        0 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.known-txs.inner              , len:        0, cap:        0 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.misbehavior                  , len:        0, cap:        0 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.orphan-block-pool.blocks     , len:        0, cap:     1792 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.orphan-block-pool.parents    , len:        0, cap:        0 }
2020-02-17 15:26:47.025 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.peers.state                  , len:        8, cap:       14 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: sync-state.pending-compact-blocks       , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.gap.inner.entries               , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.gap.inner.links                 , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.orphan.edges                    , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.orphan.vertices                 , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.pending.inner.entries           , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.pending.inner.links             , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.edges.deps             , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.edges.inner            , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.edges.outer            , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.inner.entries          , len:        0, cap:        0 }
2020-02-17 15:26:47.026 +00:00 MemoryTracker TRACE ckb-memory-tracker  HashMap              { tag: tx-pool.proposed.inner.links            , len:        0, cap:        0 }

[nervos-bot]

Hold as requested by @yangby-cryptape.

Unhold as requested by @yangby-cryptape.

[nervos-bot]

Hold as requested by @doitian.

[doitian]

Hold because of waiting on #1940

Unhold as requested by @doitian.