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DragonX v1.1.0
DanS released this
2026-08-23 10:47:19 -05:00 | 69 commits to master since this releaseSync performance release, rebased onto the upstream dev rebrand cleanup.
The headline change is data, not code: the DRAGONX checkpoint table now reaches
3,226,000, enabling the RandomX skip that RandomXValidationRequired() has always
implemented but never been able to use -- the table previously ended at
2,838,000, which is 976 blocks below the RandomX activation height, leaving the
window empty.Measured on an isolated datadir syncing bootstrap -> tip on an EPYC seed:
below the top checkpoint (RandomX skipped): 91.3 blk/s
at/above it (RandomX verified): 4.7 blk/s
~19x at the boundary. For the RandomX era on that hardware class, roughly
23 hours down to about 1.5 hours.Correctness, independently checked on the pre-rebase tree:
- gettxoutsetinfo BYTE-IDENTICAL to a live node at height 3,232,101
- synced through all 388 new checkpoints with zero rejections
- 32 getblockhash comparisons across the newly checkpointed range: identical
Also in this release:
- RandomX verify-once dedup is now armed only when CheckBlockHeader actually
verified the solution, closing a hole where a block timestamped 60-300s in
the future skipped its only PoW check and its sender escaped being banned. - RandomX is built with ARCH=default rather than ARCH=native. A native build
on the Zen4 pool box emitted 746 AVX-512 instructions into librandomx.a,
which SIGILLs on every seed in the fleet and on any older user CPU. - Git-less builds no longer identify themselves as a 2018 Komodo commit.
- The mingw -Wa,-mbig-obj flag is restored (merged from the release line).
Without it the Windows cross-compile fails at link on "dangerous relocation"
in .pdata, so v1.1.0 could not produce a win64 binary before this.
Trust model: a from-scratch sync no longer independently re-verifies proof of
work, Sapling proofs, or signatures for 387,024 blocks; it trusts the shipped
checkpoint hashes instead. Those were generated on a continuously-synced node
and cross-checked against four other full nodes, in both directions. Anyone
wanting trustless-from-genesis can pass -checkpoints=0.NOT YET BUILT FOR WINDOWS: the flag above is restored by inspection; the mingw
cross-compile has not been run against this tree.Downloads