DanS
7dc904c96f
The RandomX skip in RandomXValidationRequired() has never fired in production.
It skips verification below the last in-index checkpoint, but the DRAGONX
checkpoint table ended at 2,838,000 while ASSETCHAINS_RANDOMX_VALIDATION is
2,838,976 -- the window was empty by 976 blocks. Every block since the RandomX
activation has been fully verified, at ~65ms per hash on the fastest x86 core
available and ~180ms on a typical user machine.
Extends the table by 388 entries at stride 1000, from 2,839,000 to 3,226,000
(tip - ~5,600, far beyond any reorg this chain has produced; max observed depth
is 3-4). Blocks requiring a RandomX verify drop from 391,447 to ~5,500. The
same extension carries the existing script/zk-proof skip (fScriptChecks,
fExpensiveChecks) over the same range.
Checkpoint data verification, before it went anywhere near source:
- generated on a continuously-synced node
- all 388 hashes identical on 4 other full nodes (388/388 on each)
- reverse-verified hash -> height, all on the active chain
- re-extracted from the patched file and diffed against the verified set
- 2,838 pre-existing entries unchanged; all 3,226 ascending and unique
Trailer fields computed from RPC, not util/checkpoints.pl, which greps a
rotating debug.log and assumes 1440 blk/day (DragonX is 2400).
Also switches all three build scripts from -DARCH=native to -DARCH=default.
RandomX's CMakeLists maps ARCH=native to -march=native, tuning the binary to
the build host: a Zen4 build emitted 746 AVX-512 instructions into
librandomx.a, and every seed reports avx512f=no, so that binary would SIGILL
inside RandomX fleet-wide -- and on any user CPU older than the build machine.
build-win.sh had the same flag, so shipped Windows binaries inherited it.
ARCH=default keeps -maes and per-file -mssse3/-mavx2, so the portable baseline
costs essentially nothing. Note build.sh skips cmake entirely when
src/RandomX/build/ exists, so a stale dir silently preserves the old ARCH.
Validated on an isolated datadir on an EPYC seed, bootstrap -> tip:
- below 3,226,000 (RandomX skipped): 91.3 blk/s (22,823 blocks / 250s)
- at/above 3,226,000 (verified): 4.7 blk/s
~19x at the boundary. The 4.7 blk/s baseline matches a same-day restore on
the old binary, corroborating it independently.
- gettxoutsetinfo at height 3,231,951 BYTE-IDENTICAL to a live node
(hash_serialized 4885c2374ef8b84c648b97d560a57cfcc99bb979142dc89c2a5ccbc90a1f1692,
222,635 txs/txouts, 15,826,352 bytes, total 667909.93689180)
- synced through all 388 new checkpoints with zero rejections
- verifychain 4 (500) and 3 (2000) both true
Binary: v1.0.3-bf3c33c53-dirty, stripped md5 fe83d70fec5b50c38bf65ea6c733ffa9
Checkpoints decay at 2,400 blocks/day; regenerating them belongs on the
release checklist.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
50 lines
1.6 KiB
Bash
Executable File
50 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright (c) 2016-2024 The Hush developers
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# Distributed under the GPLv3 software license, see the accompanying
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# file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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export HOST=x86_64-w64-mingw32
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CXX=x86_64-w64-mingw32-g++-posix
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CC=x86_64-w64-mingw32-gcc-posix
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PREFIX="$(pwd)/depends/$HOST"
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set -eu -o pipefail
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set -x
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cd "$(dirname "$(readlink -f "$0")")/.."
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cd depends/ && make HOST=$HOST V=1 NO_QT=1
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cd ..
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./autogen.sh
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CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site CXXFLAGS="-DPTW32_STATIC_LIB -DCURL_STATICLIB -fopenmp -pthread" ./configure --prefix="${PREFIX}" --host=x86_64-w64-mingw32 --enable-static --disable-shared
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# Build CryptoConditions stuff
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WD=$PWD
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cd src/cc
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echo $PWD
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./makecustom
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cd $WD
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# Build RandomX
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cd src/RandomX
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if [ -d "build" ]
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then
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ls -la build/librandomx*
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else
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mkdir build && cd build
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# ARCH=default, NOT native. RandomX's CMakeLists maps ARCH=native to -march=native, which
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# tunes the binary to the BUILD machine. Measured 2026-08-21: a build on the Zen4 pool box
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# emitted 746 AVX-512 (zmm) instructions into librandomx.a, and every seed reports
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# avx512f=no -- that binary SIGILLs inside RandomX on the whole fleet, and on any user CPU
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# older than the build host. ARCH=default still enables -maes plus per-file -mssse3/-mavx2
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# for argon2, so the portable baseline costs ~nothing.
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CC="${CC} -g " CXX="${CXX} -g " cmake -DARCH=default ..
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make
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fi
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cd $WD
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sed -i 's/-lboost_system-mt /-lboost_system-mt-s /' configure
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cd src/
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CC="${CC} -g " CXX="${CXX} -g " make V=1 dragonxd.exe dragonx-cli.exe dragonx-tx.exe
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