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adder-collator: add velocity measurement and make elastic scaling test more robust (#4016)

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Improves `adder-collator` to also compute the parachain velocity. The
velocity is defined as number of parachain blocks progressing per relay
chain block.

In this test we're asserting that the elastic parachain always
progresses by 3 blocks per RCB, while the non-elastic parachain
progresses normally - 1 block per RCB.

---------

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>
Co-authored-by: ordian <write@reusable.software>
This commit is contained in:
Andrei Sandu
2024-04-08 15:29:35 +03:00
committed by GitHub
parent c1063a530e
commit 039d183be9
2 changed files with 53 additions and 6 deletions
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polkadot/zombienet_tests/elastic_scaling/0001-basic-3cores-6s-blocks.zndsl
+10 -6
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@@ -14,11 +14,15 @@ elastic-validator-4: reports node_roles is 4
elastic-validator-0: js-script ./assign-core.js with "2000,0" return is 0 within 600 seconds
elastic-validator-0: js-script ./assign-core.js with "2000,1" return is 0 within 600 seconds
# Wait for 10 relay chain blocks
elastic-validator-0: reports substrate_block_height{status="best"} is at least 20 within 120 seconds
# Wait for 20 relay chain blocks
elastic-validator-0: reports substrate_block_height{status="best"} is at least 20 within 600 seconds
# Parachain should progress with 3 blocks per relay chain block, so it's reasonable to expect state to be
# at least 50, assuming some tolerance
some-parachain: log line contains "BlockData { state: 50, add: 2 }" within 10 seconds
some-parachain-1: count of log lines containing "BlockData { state: 24, add: 2 }" is 0 within 10 seconds
# Non elastic parachain should progress normally
some-parachain-1: count of log lines containing "Parachain velocity: 1" is at least 9 within 20 seconds
# Sanity
some-parachain-1: count of log lines containing "Parachain velocity: 2" is 0 within 20 seconds
# Parachain should progress 3 blocks per relay chain block ideally, however this measurement does
# `ceil()` on the actual velocity to account for CI overload.
some-parachain: count of log lines containing "Parachain velocity: 3" is at least 9 within 20 seconds