Reindex is basically an IBD minus the downloading of the blocks. Bitcoin Core just re-reads the existing blk files from disk instead of downloading them. Chain state, undo files and indexes are all recreated from scratch. Things might have been optimized in the newer versions but I remember reading that IBD could sometimes actually be quicker than a re-index.
I was testing v30 now and it does seem to use all the available processors more evenly than I thought but I need to see how it looks when it gets past blocks from 2020. That’s where all the ordinal transactions started happening. Wondering if those segwit transactions are processed in a single thread.
bogi / Bogi
npub1ta…nar0x
2026-01-14 02:55:40 UTC
in reply to nevent1q…v9d8
Author Public Key
npub1taprjecqh2g9xj9puun4fx3lr0uy24jzfmths79edrdnj5qwvwcsvnar0xSeen on
wss://nos.lolPublished at
2026-01-14 02:55:40 UTCEvent JSON
{
"id": "d06c485eee683dfab2727c6d432a6c4b9d83d58bfbf28d000aa152525cf52c0d",
"pubkey": "5f42396700ba905348a1e727549a3f1bf84556424ed77878b968db39500e63b1",
"created_at": 1768359340,
"kind": 1,
"tags": [
[
"e",
"3e3b0b887fdee3cddfdd2a8a4aa22545c79d737c6ccd7d984489d6f90279fbe8",
"wss://relay.mostr.pub/",
"root",
"4f4f82846698ff66ae5fa9fad4c0c4eb7823afb07fa9f54ea9d15f1217ae96cc"
],
[
"e",
"8aa477324247f5a9c98595782efdb7148aeee2e5496760c3dfda39fce9f3e0b5",
"wss://nostr.0x7e.xyz",
"reply"
],
[
"p",
"21580a98aaf64f7d66705abe7bf7a7acf4ee440fcf6b59d0b76e16217824d895",
"",
"mention"
]
],
"content": "Reindex is basically an IBD minus the downloading of the blocks. Bitcoin Core just re-reads the existing blk files from disk instead of downloading them. Chain state, undo files and indexes are all recreated from scratch. Things might have been optimized in the newer versions but I remember reading that IBD could sometimes actually be quicker than a re-index. \n\nI was testing v30 now and it does seem to use all the available processors more evenly than I thought but I need to see how it looks when it gets past blocks from 2020. That’s where all the ordinal transactions started happening. Wondering if those segwit transactions are processed in a single thread. ",
"sig": "c8f441fec84066520c4f4c7d15ed606b49ddcea4860a1a913144d9ef2167111e4e879ad130d9070be5df38cd4c34c8b0dd342072eb04e30d66068a9c6c3d72b0"
}