[r3.4] warmuper: blocking and more (#20819)#21022
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in near past i did change warmupers logic to `non-blocking`. but seems it was mistake for non-chain-tip case. On bloatnet non-tip: i see 5x improvements in commitment speed - if make warmuper's channel `blocking`. Reason: there is so much cold keys that 20% of them go dropped. And it slow-down overall system throughput. Also increasing amount of warmupers more than `runtime.NumCPU()` helps +2x because it's oke to have `io-threads > cpu_amount` Current bloatnet speed (100 blocks batches): `gas/s=289.38M`, trie calc `keys/s=14.24k` ``` [INFO] [04-26|11:34:37.582] [4/6 Execution][agg] computing trie progress=2.27M/2.40M keys/s=14.24k akeys=349 skeys=2.27M rdb=4.37M rda=349 rds=3.11M wrb=5.25M cb=8.72M ca=209 cs=832.77k mb=18.57k ma=140 ms=2.28M fld=0 pdur=0s fdur=0s ufdur=0s alloc=21.7GB sys=30.2GB [INFO] [04-26|11:34:46.903] [4/6 Execution] serial done in=3m4.129222864s buf=5.6GB/2.9GB blk=24506399 blks=100 blk/s=0.54 txs=6.80k tx/s=36 gas/s=289.38M stepsInDB=0.72 step=7496.7 alloc=22.2GB sys=30.2GB isForkValidation=false isApplyingBlocks=true ```
AskAlexSharov
approved these changes
May 7, 2026
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Cherry-pick of #20819 to release/3.4.
r3.4-specific adaptations
commitment_context.go: kept release/3.4's commented-out[commitment] processedlog block; the upstream change to that log line (addingkeys/s) was not meaningful since the log is disabled in 3.4. The functional change (NumWorkers: 16→dbg.TipTrieWarmupers) was applied cleanly.