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headerssync: Update headerssync configuration

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This commit is contained in:
Ava Chow 2024-08-14 14:03:49 -04:00
parent c2707446f7
commit 221809b81c
2 changed files with 4 additions and 4 deletions
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4
contrib/devtools/headerssync-params.py Normal file → Executable file
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@ -12,13 +12,13 @@ import random
# Parameters:
# Aim for still working fine at some point in the future. [datetime]
TIME = datetime(2026, 10, 5)
TIME = datetime(2027, 4, 1)
# Expected block interval. [timedelta]
BLOCK_INTERVAL = timedelta(seconds=600)
# The number of headers corresponding to the minchainwork parameter. [headers]
MINCHAINWORK_HEADERS = 804000
MINCHAINWORK_HEADERS = 856760
# Combined processing bandwidth from all attackers to one victim. [bit/s]
# 6 Gbit/s is approximately the speed at which a single thread of a Ryzen 5950X CPU thread can hash

4
src/headerssync.cpp
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@ -13,11 +13,11 @@
// contrib/devtools/headerssync-params.py.
//! Store one header commitment per HEADER_COMMITMENT_PERIOD blocks.
constexpr size_t HEADER_COMMITMENT_PERIOD{606};
constexpr size_t HEADER_COMMITMENT_PERIOD{615};
//! Only feed headers to validation once this many headers on top have been
//! received and validated against commitments.
constexpr size_t REDOWNLOAD_BUFFER_SIZE{14441}; // 14441/606 = ~23.8 commitments
constexpr size_t REDOWNLOAD_BUFFER_SIZE{14621}; // 14621/615 = ~23.8 commitments
// Our memory analysis assumes 48 bytes for a CompressedHeader (so we should
// re-calculate parameters if we compress further)