feat: get_main_chain_length

[maksymar]

No description provided.

[github-actions]

canbench 🏋 (dir: .) 1b46b58 2025-03-18 13:57:38 UTC

🔴 Performance regressions detected! 😱

❌ ./canbench_results.yml is not up to date
If the performance change is expected, run canbench --persist to save the updated benchmark results.

~/work/bitcoin-canister/bitcoin-canister/scripts ~/work/bitcoin-canister/bitcoin-canister
~/work/bitcoin-canister/bitcoin-canister

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Benchmark: insert_300_blocks
  total:
    instructions: 475.55 M (no change)
    heap_increase: 10 pages (no change)
    stable_memory_increase: 0 pages (no change)

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Benchmark: get_metrics
  total:
    instructions: 10.28 M (regressed by 30.07%) 🔴
    heap_increase: 0 pages (no change)
    stable_memory_increase: 0 pages (no change)

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Benchmark: insert_block_headers
  total:
    instructions: 3.11 B (no change)
    heap_increase: 1 pages (no change)
    stable_memory_increase: 0 pages (no change)

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Benchmark: insert_block_headers_multiple_times
  total:
    instructions: 11.40 B (no change)
    heap_increase: 7 pages (no change)
    stable_memory_increase: 0 pages (no change)

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Benchmark: pre_upgrade_with_many_unstable_blocks
  total:
    instructions: 5.99 B (-0.00%) (change within noise threshold)
    heap_increase: 4097 pages (no change)
    stable_memory_increase: 1792 pages (no change)

  serialize_blocktree (scope):
    instructions: 2.40 B (-0.00%) (change within noise threshold)
    heap_increase: 2048 pages (no change)
    stable_memory_increase: 0 pages (no change)

  serialize_blocktree_flatten (scope):
    instructions: 183.68 K (-0.03%) (change within noise threshold)
    heap_increase: 0 pages (no change)
    stable_memory_increase: 0 pages (no change)

  serialize_blocktree_serialize_seq (scope):
    instructions: 2.40 B (-0.00%) (change within noise threshold)
    heap_increase: 2048 pages (no change)
    stable_memory_increase: 0 pages (no change)

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