1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
Delivery-date: Wed, 19 Feb 2025 10:47:02 -0800
Received: from mail-oa1-f64.google.com ([209.85.160.64])
by mail.fairlystable.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
(Exim 4.94.2)
(envelope-from <bitcoindev+bncBAABBHGO3C6QMGQEYW7E66Y@googlegroups.com>)
id 1tkp65-0007Bo-Ns
for bitcoindev@gnusha.org; Wed, 19 Feb 2025 10:47:02 -0800
Received: by mail-oa1-f64.google.com with SMTP id 586e51a60fabf-2bcbd5bfc95sf26499fac.3
for <bitcoindev@gnusha.org>; Wed, 19 Feb 2025 10:47:01 -0800 (PST)
ARC-Seal: i=2; a=rsa-sha256; t=1739990816; cv=pass;
d=google.com; s=arc-20240605;
b=Eby2dOl9zcyRbVdTU6oKpmYd3eUxQMTzmwZUD0q8YifrdRKEcKP3eqVf8srV2K2Oq9
SkBVGmieVynYX8gmihY9Gv26tvWIEy+dJB7M+4PEcx/385xdotIaZWyFfNyn000N0qLL
4eMjo3dV2+piVBUA4SQABI2FsCziMlmTAdLRyLqIXRxI+qy4r4+Q8z9tpCLYWn99pFlf
jyQ8q/QXQ8rJGAuZg1NsO/uNRoP+uURDj/ISvUo3CoHR6ZBYA45fk7FsrIykU8/ZyXvt
x5Sie2RSc5iYFViW8CQDF7dfX/pUv1V1fmljr+sfYWNeSVN8jzhA+IZQEUGSLlVXdGF/
o9wg==
ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605;
h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
:list-id:mailing-list:precedence:content-transfer-encoding
:mime-version:feedback-id:references:in-reply-to:message-id:subject
:cc:from:to:date:sender:dkim-signature;
bh=OgVV3st/YxN/qKN2T1tTIhLqmlX8DX4YcP6ek+Xf2es=;
fh=iZi6B2F0/WF8Ti/1/Kf4jqAIn6v/N4glz3UQwyquqjw=;
b=lf8GerInzEImbraBKoxP8QePkoz5aGJqaZqMzkYrg0DSGVdkeMKzOxM/gVKTAgGJuL
tljj+Tj63JXOVnUxpEsh6ueYL1lQC/5nBKi7FOVvMgUj3YKewsQaccguqkLZJXzpUOJ5
POW2i+NUjXPLTHOlaArdMVdoHlLNN7F0beR7My3a/HdJlNF3GM2jMZftOvkvEYeIE40y
M3gD9NxPqVbwvV/+N1A7gaVJB2wBmCzIzZAxQUvyUW9WY2JGqtWNxDUp2Ka8Eau3fQA3
5mX4Fl4Jghre909/ir7L5+gEBOXCAgQ1O0QLq2vDVAnT+0v8sPSMNIK0nAVaN9kk4xBD
8+7w==;
darn=gnusha.org
ARC-Authentication-Results: i=2; gmr-mx.google.com;
dkim=pass header.i=@wuille.net header.s=protonmail header.b=K6yShDdW;
spf=pass (google.com: domain of bitcoin-dev@wuille.net designates 185.70.43.23 as permitted sender) smtp.mailfrom=bitcoin-dev@wuille.net;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=wuille.net
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=googlegroups.com; s=20230601; t=1739990816; x=1740595616; darn=gnusha.org;
h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
:list-id:mailing-list:precedence:x-original-authentication-results
:x-original-sender:content-transfer-encoding:mime-version
:feedback-id:references:in-reply-to:message-id:subject:cc:from:to
:date:sender:from:to:cc:subject:date:message-id:reply-to;
bh=OgVV3st/YxN/qKN2T1tTIhLqmlX8DX4YcP6ek+Xf2es=;
b=WVrH6ktX3GQQhzeb1q8rfEEYBdc2YbGn4sj1c/pVHyYQRkzmtR4ejoLMdUrF2irsl1
oM4L0L1V35XMtC9R8L4C+T4GO+VJtp3nm6Mbb37dhL4+Vxe2DQC+HKuF4kkW5iJ3hjv/
4bumVxGD2ZTKL79JURjLxPqSMk1Wt1uQNwozzxS1bV9m5dydbMoczqPfGJ4shnU9V6h7
bgYP4txevByd7ZYZ7K3saLucm84h2D7Tvil5isWnWnrsRWe3Z+g9amRmNhqkfo5/EL2m
AGoBjmEJZhsUyzLZGdWOuF8F/1R2tFa5qBhyt8fa0qrF+qtAVmIFTP7NOaQGGfaF8WMB
lQyw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20230601; t=1739990816; x=1740595616;
h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
:list-id:mailing-list:precedence:x-original-authentication-results
:x-original-sender:content-transfer-encoding:mime-version
:feedback-id:references:in-reply-to:message-id:subject:cc:from:to
:date:x-beenthere:x-gm-message-state:sender:from:to:cc:subject:date
:message-id:reply-to;
bh=OgVV3st/YxN/qKN2T1tTIhLqmlX8DX4YcP6ek+Xf2es=;
b=IFl26ZwRZN907KvzrCMGGw+VvFA0B4s4i9bG6cjW7ZoNgMGFpaVZ6yGmO2PMr3CD19
LrgBw79lTyh9lbsoQM3HrwYgY9q5Y0NCWe2YUH6iM3JV/FoIhaHAJC/2yBYn5+AGEvQ5
Jxdm63Dip201SGPGStLMwoSQaGBhEB69UHZUxj6QEJ69bulzG4j1gDgAC+WkmSxlXBYg
RzaYUGhrP/IzJ7Pi0i354b3CYKAC26iJTHLShWYr3tEkwEKHjwF6y9iUoAPTr8rS8V/+
dSYWHj/YSyHu9lSuoayZrYuByvhJHepfGdeIDHS08Ld75U6KApzXYzlha/uTdT7jAhfg
5/Zg==
Sender: bitcoindev@googlegroups.com
X-Forwarded-Encrypted: i=2; AJvYcCXaKWBdFqvflnlxOHegvkgvirr6MjvqAnn5N+qUKlQcK5UyF0aAqIjhqdkVFm9TlrEvF3hNkCP8uUFA@gnusha.org
X-Gm-Message-State: AOJu0Yx4Z/pzb4mTQFbS3XzRoElG+tKYIYNTIRbrhVQWhNlUkwQiTCAe
mX/csiumIiPRqnBw6wXYdCjFuUvJQA0CjjCR0qhAtKoMX+wbwfwX
X-Google-Smtp-Source: AGHT+IF3vHTHCJiCRrSaKuwNG6FBiauvN9vmIBZILlns43hhj0fYGyhBKG6uKNAvaacG7onSgQCq0A==
X-Received: by 2002:a05:6870:7010:b0:2b8:3e6b:605 with SMTP id 586e51a60fabf-2bc99b5d7b0mr11884986fac.20.1739990814676;
Wed, 19 Feb 2025 10:46:54 -0800 (PST)
X-BeenThere: bitcoindev@googlegroups.com; h=Adn5yVEt/wIH5LXA+IpuBVkXzXrZ8JqH8OiryOCWJyRAW098yg==
Received: by 2002:a05:6871:a117:b0:29e:3d45:93e6 with SMTP id
586e51a60fabf-2bd2f97b6b7ls57921fac.1.-pod-prod-03-us; Wed, 19 Feb 2025
10:46:52 -0800 (PST)
X-Received: by 2002:a05:6808:2012:b0:3f4:177c:a4af with SMTP id 5614622812f47-3f4177ca6b2mr1671503b6e.11.1739990812131;
Wed, 19 Feb 2025 10:46:52 -0800 (PST)
Received: by 2002:a05:600c:6c47:b0:439:8c8f:60f0 with SMTP id 5b1f17b1804b1-4398c8f6682ms5e9;
Wed, 19 Feb 2025 10:20:57 -0800 (PST)
X-Received: by 2002:a05:6000:1f87:b0:38f:23f4:2d7a with SMTP id ffacd0b85a97d-38f33f43751mr18232587f8f.40.1739989255655;
Wed, 19 Feb 2025 10:20:55 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1739989255; cv=none;
d=google.com; s=arc-20240605;
b=lbZdcEzreePN/7tvMzw+gas6Url7hmX+WhgKh6Jmw8YlU4v6h5x1Tcd7mRvrspPleC
oBzhlVSVQfLREbOJhrJpugM3jU4HghWmu6PjTKgxBQB6Qw3qS94mbCkyQdE6n6g9UsH/
o7l8+njAkZuPwEDjWt/tducoF3hooOTUKREujX0YUS5zfrjj1A/t9Fr9oPksDVVvRXIK
puBw5k4rYzKseNCRv4rmVDeNgfKZAkBqLZMq9QA/2IxTihfv41CfSAukW2AXhnG+x7/W
AeQvy2HdrNneDC7OUVu3azlfEJXI3LyOjQl1NNyBQSQIfjXe70CyNDfQyne5Q3+huQm1
PQrQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605;
h=content-transfer-encoding:mime-version:feedback-id:references
:in-reply-to:message-id:subject:cc:from:to:date:dkim-signature;
bh=gCqrRF9E5Xa/rI8x4OEkzmlEzQddDtA/nHRWOTRY8b4=;
fh=bZhKHWNYmEIuUC5KPA/S3nPasycal1EIkOD40x2mX7U=;
b=jqlhWhDaTbJDKuAXoOpjDU0Bkwx/+wEph07+zQ49nfpk0CohTnPJmrY57CQ9SAwTN5
0A3uUfDmwFwDspO2QHCO/37z0zvEJnWI04KyqBDjzyMAghX8zL8YQj8hHQAcyKjLfGGl
ebi67481YRMACpYMpiLM9GOZtmX0PppbwmCa8ic3MlMOCR/sfyy/DQA6pCWBm4Lvy7Lo
ijipsakdiA5yeCjsyF6OltiSx/FPHLg9UwiIlrO4F33uJQxmgL1nFbitOExtfIXVTb2Z
5SnuT19LnkPmjvlLRWmaAG5EDUv5qGlp+goEv4t7sa6+RKmAZd7IH3d5MajW6HCzcqlM
ud7w==;
dara=google.com
ARC-Authentication-Results: i=1; gmr-mx.google.com;
dkim=pass header.i=@wuille.net header.s=protonmail header.b=K6yShDdW;
spf=pass (google.com: domain of bitcoin-dev@wuille.net designates 185.70.43.23 as permitted sender) smtp.mailfrom=bitcoin-dev@wuille.net;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=wuille.net
Received: from mail-4323.protonmail.ch (mail-4323.protonmail.ch. [185.70.43.23])
by gmr-mx.google.com with ESMTPS id 5b1f17b1804b1-4399be7a426si1158805e9.0.2025.02.19.10.20.55
for <bitcoindev@googlegroups.com>
(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
Wed, 19 Feb 2025 10:20:55 -0800 (PST)
Received-SPF: pass (google.com: domain of bitcoin-dev@wuille.net designates 185.70.43.23 as permitted sender) client-ip=185.70.43.23;
Date: Wed, 19 Feb 2025 18:20:51 +0000
To: John <csdarkcounter@gmail.com>
From: Pieter Wuille <bitcoin-dev@wuille.net>
Cc: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
Subject: Re: [bitcoindev] Transaction Validation Optimization
Message-ID: <PwJsLY2Y0zpBfSnWT-O1iP-r6n7sipm-EFgK-LnnZqkPMoSUO6HJxigmt2J0CRTd8A6V4UVpA-JFCd6MaXZ0Up1bye5zVxXGdSrhIsyr38s=@wuille.net>
In-Reply-To: <3c2b1e7a-ffcd-41da-a533-2d9224fc016fn@googlegroups.com>
References: <3c2b1e7a-ffcd-41da-a533-2d9224fc016fn@googlegroups.com>
Feedback-ID: 19463299:user:proton
X-Pm-Message-ID: a50b9961616bb6ef26a29ec9143fcdf60a614a3f
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Original-Sender: bitcoin-dev@wuille.net
X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass
header.i=@wuille.net header.s=protonmail header.b=K6yShDdW; spf=pass
(google.com: domain of bitcoin-dev@wuille.net designates 185.70.43.23 as
permitted sender) smtp.mailfrom=bitcoin-dev@wuille.net; dmarc=pass
(p=NONE sp=NONE dis=NONE) header.from=wuille.net
Precedence: list
Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com
List-ID: <bitcoindev.googlegroups.com>
X-Google-Group-Id: 786775582512
List-Post: <https://groups.google.com/group/bitcoindev/post>, <mailto:bitcoindev@googlegroups.com>
List-Help: <https://groups.google.com/support/>, <mailto:bitcoindev+help@googlegroups.com>
List-Archive: <https://groups.google.com/group/bitcoindev
List-Subscribe: <https://groups.google.com/group/bitcoindev/subscribe>, <mailto:bitcoindev+subscribe@googlegroups.com>
List-Unsubscribe: <mailto:googlegroups-manage+786775582512+unsubscribe@googlegroups.com>,
<https://groups.google.com/group/bitcoindev/subscribe>
X-Spam-Score: -0.8 (/)
On Tuesday, February 18th, 2025 at 10:22 AM, John <csdarkcounter@gmail.com>=
wrote:
> Hi everyone,
>=20
> While analyzing the codebase, I observed what seems to be duplicate valid=
ation steps for transactions that already exist in the mempool when they ap=
pear in new blocks. Specifically, I'm curious if the secondary validation p=
erformed during block acceptance could be safely optimized for SegWit-verif=
ied transactions using their wtxid hashes.=EF=BC=88I'm still working on the=
source code, and I'm not sure if the source code was validated twice
Bitcoin Core maintains a signature validation cache and a script validation=
cache (see the ValidationCache class), which generally means that mempool =
transactions don't need to be (fully) validated again when seen in a block.=
The script validation cache includes the validation flags (including which=
consensus rules are active) too, so the cache will not function across sof=
tfork activations, for example.
--=20
Pieter
--=20
You received this message because you are subscribed to the Google Groups "=
Bitcoin Development Mailing List" group.
To unsubscribe from this group and stop receiving emails from it, send an e=
mail to bitcoindev+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/=
PwJsLY2Y0zpBfSnWT-O1iP-r6n7sipm-EFgK-LnnZqkPMoSUO6HJxigmt2J0CRTd8A6V4UVpA-J=
FCd6MaXZ0Up1bye5zVxXGdSrhIsyr38s%3D%40wuille.net.
|
