Dragan Rakita
@rakitadragan
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core blockchain stuff and rust. revm author. working on reth @paradigm .
Joined June 2011
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Revm got officially audited/fuzzed!
A community-driven audit, supported by six projects, was done by a top Ethereum bug hunter.
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Why did foundry test got significantly faster? Lets talk about bytecode analysis in EVM.
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I have never imagined, that the project (REVM) that I have built, maintained and improved in my spare time is becoming very important in eth ecosystem and is used as the main component in big projects such as foundry, hardhat, helios and now reth. Thank you all!
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EVM (EOF) Taxonomy.
One pager on EOF changes to the current EVM and its intersection with legacy bytecode.
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Parallel EVM claim, how to verify the claim of parallel execution.
Wrote on this here:
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I have compiled a list of the benefits that EOF brings to Ethereum.
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Revm v4.0.0 was merged last week ⚙️ 🦀
And introduces big changes in how Revm can be used.
It refactors internal logic into function handlers and opens up the
possibility of overriding any part of logic with the custom function.
🧵
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EvmBuilder 🏗️ just landed in Revm . I am really excited as Revm can now be properly built 🏛️and internal working is more compact and more customizable. ☺️
The most powerful thing is that it exposes and can override the internal logic, even instructions, with custom handles. 🚀
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Landed today in Istanbul for
@EFDevconnect
find me if you want revm stickers (will be here for a week).
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Reth v0.1.0-alpha got released and I am beyond happy that it happened, as the itch that I had for the last few years just got scratched
1/ 🧵
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Did something, spoke about EVM code
Learn the EVM in 30 mins with
@rakitadragan
. He will start by discussing the inputs and database of the EVM, and then move on to the host and interpreter. He will explain how the interpreter/host works, hardforks, logs, opcodes, CREATE2 and much more!🥰
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Bending the truth to fit the narrative and arresting the developer as a result of that is a horror story. Just imagine doing the same to RSA and arresting Shamir as he co-developed private data transmition.
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Big announcment! Reth v1.0 got released! 🦀
🚨 Releasing Reth 1.0 🚨
After almost two years of development and a successful audit by Sigma Prime, we are finally releasing Reth 1.0, the first “prod-ready” release of our blazing-fast Ethereum execution client. We invite RPC providers and stakers to run Reth.
More below.
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This is the future that we are building, the fast iteration of new ideas enabled by existing robust crates.
"By building on RISC Zero’s zkVM and popular Rust crates (like revm, ethers, and alloy), we were able to write the first version of Zeth in under 4 weeks"
Introducing Zeth: A Fully Open Source Type 0 zkEVM 🚀
Built on the RISC Zero zkVM and Bonsai, Zeth is a performant, upgradable, and scalable way for developers to ZK prove any Ethereum block ushering in the next generation of ZK and EVM
🧵 1/8 Learn More Below!
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And right after revm v3.4.0📦 we are publishing v3.5.0 📦 with Alloy types transition. Unification of types is happening.
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I was away for two weeks, and Revm became even more popular. Three things happened:
* Reth Alphanet.
* Pyrevm and vyper integration
* Scroll revm
🧵
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It would be very interesting to check this, the next step would be to count the opcodes (and sets) to get more insights on appearances.
Should be simple to do, made the task for people to take:
here's some more ideas...
a technique for optimizing the EVM that's been discussed before (I think I heard it first from
@recmo
, c.f. screen) is execution of multiple opcodes at once
to do that you'd run a historical analysis of common opcode sequences and implement specialized
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EVM trivia time: State journaling in EVM, what is it and why do we need it?
small 🧵
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1000⭐ 🔥🎉
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Now, as I was the first to have alloy in my company name as Blue Alloy, I give myself the permission to name all devs Allomancers and make reading Mistborn a requirement
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In the EVM world, did you ever wonder what would happen with balance if you selfdestruct and set the target address to be the same contract you are destroying?
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Getting little bit closer to the cancun today, eip4844 got merged in revm
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Blockchains are currently monsters, demanding several TB of NVMe disk space to run. Yet, they demand only a fraction of CPU and disk to follow the tip. And good luck running multiple on a single machine.
The major issue lies in clients, consolidating everything in one DB.
I have a fun time working in crypto, supporting some of the largest crypto companies in the world. Deploying infrastructure at scale, etc.
But
I'm here because I belive in the crypto punk ethos. I believe in decentralization, censorship resistance, and self sovereign identify.
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I am a simple man, I see good rust project I give it a star. 🦀
Introducing Magi 🟠, our brand new OP Stack rollup client written in Rust.
We've been working on Magi to help improve the client diversity and resilience of the entire OP Stack ecosystem.
Lets dive in.
code:
blog:
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zkp intro: Pedersen commitment, as any commitment allows you to *bind* yourself to the value but to allow that value to be *hidden* from others. Usually first step in zkp.
You could do the same with hash, but Pedersen plays nicely with elliptic curves.
🧵
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In this release, a lot of work went in.
Revm State was something I worked on for the last few months, it is a cleaner way to handle block transitions as there are a lot of moving parts there. So I am glad that it has already proved useful as it fixed a bug that popped up a few
🚨 New Reth Release: alpha.9! 🚨
We are FINALLY ready for Cancun! All EIPs implemented, Hive's mostly passing, next stop Devnet 9!!
Also: reworked REVM state handling API, pruning improvements, fixes hopefully the last memory leaks, and initial groundwork for snapshots.
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This is packed with goodies! Flat kv idea from Erigon is amazing, and caching/storing of jumpmap was no brainer when we started profiling foundry in early days. Caching keccak idea was floated around but we didn't take a lot of time for it (maybe we should)
Extending opcode to
@gakonst
Disagree with this take, we did a significant amount of research on parallelism, while I will acknowledge there is an increase of around 30%, this is fairly insignificant given other optimization to the VM (superset instructions, switching from 8-bit opcodes to 16-bit opcodes,
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Recently checked evmone and v0.9.0 became 26% faster, around 34ms for snailtracer. So I wanted to catch up with revm, and implemented things that I missed previously, I am now getting around 40ms (with intx embedded it is around 37ms) which is around ~20% faster than the old revm
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Powered by revm :D
.
@paradigm
is building Reth, a Rust Ethereum Execution Layer.
Reth is not a fork or a rewrite of any other client implementation.
It is a new Apache/MIT-licensed full node implementation of Ethereum focused on contributor friendliness, modularity, and performance. 1/8
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Paris was a blast, always amazing to meet online people in person and just talk. And the reth team offsite, productive as always!
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We have officially introduced reth to all core dev call,
@gakonst
is awesome as always!
Relly exciting times are ahead of us!
gave a small introductory talk about Reth to All Core Devs this morning...
excited for Cancun, Devnet 9 & Holesky and to collaborate with the broader community building on nodes!
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I didn't brag before, but I was one of the recipients of the small EF grant that allowed me to work on revm v3.0.0. I am really glad that I can say that this was the first monetary support that I got for working on revm.
@pumpedlunch
,
@rakitadragan
,
@richwarner
,
@r1oga
,
@sigp_io
,
@todaiweb3
,
@uncloakcrypto
,
@vee3my
,
@WorkingUpEC
,
@WTFAcademy_
,
@zkproof
, and
@__zkhack__
. We appreciate all of your efforts to help create a more vibrant, strong, and diverse Ethereum ecosystem 💖
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Powered by revm :D Just recently noticed it.
Today we're announcing Helios, a fast, portable, and secure Ethereum light client written in Rust.
Helios syncs in two seconds, uses no storage, and provides trustless access to Ethereum.
Code:
Post:
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I have some free time, and spending it by building very fast EVM in rust:
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This is not easy to do, debug, make it sync from genesis block and pass all eth state tests. Kudos to the team!
It is exciting to see that it is built on top of Revm.
1/ 🧵After several months of building in stealth mode, we are excited to start sharing our work with the community!
Introducing RISE pevm: EVM execution on steroids!
Full article:
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Congrats to Succinct! I love our stack and its reusability, it powers up the whole community and allows new building blocks to be built on top of it.
Although SP1 Reth can be confusing as it is not a client, SP1 Revm would be more accurate as it is execution.
9/9 Acknowledgements: SP1 Reth could not be built without high-quality, open-source Ethereum tooling, including core execution primitives from Reth & Revm, RPC types from Alloy, and a MPT library as well as inspiration on EVM execution from Zeth (a zkEVM built with Risc0’s zkVM).
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In general, research and engineering are kinda a lot different
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Representing the new batch of Ethereum Core Devs, I highly recommend following all of them!
*None* of this would have been possible without the beyond-excellent team working on Reth.
BIG KUDOS to
@mattsse_
@r_krasiuk
@onbjerg
@rakitadragan
@Rjected
@joshie_sh
@ashekhirin
for sticking through this monstrous journey of non-stop coding and going deep into Ethereum's soul.
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I don't agree with the conclusion, but this kind of discussion is always appreciated and this post is a good read
I finally wrote up my thoughts on EOF.
"Why I am against EOF in Pectra"
I will keep working on the EOF, implementation in geth, because I don't want to undermine the process.
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revm v3.1.0 just got published.
It is now Shanghai ready, gas block optimization was removed, one bug in cachedb was squashed, and there are a lot of small goodies that are added by the community, ty all.
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Awesome read!
When this kind of creative project that uses revm happens, it nudges me to think how would I integrate it
Here's a deep dive into our EthBerlin4 project R55:
Have fun u nerds
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what is going on with github, for the third time today I was tagged in a scam comment?
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Revm started as a hobby project and became a leading EVM in the ecosystem.
I am thrilled that this milestone has been reached! Without the community using it, this would not be possible.
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Are fake accounts bear or bull signal 😅
(he deleted the chat so i didnt get rest of the convo 😂) cc
@gakonst
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If you ever wondered, here are EVM opcodes that can expand memory.
Obvious ones that set values:
* MSTORE
* MSTORE8
* EXTCODECOPY
* CODECOPY
* CALLDATACOPY
* RETURNDATACOPY
And unexpectedly memory reads can do it too:
* MLOAD
* LOG
* CREATE/CREATE2
* all CALL's
* SHA3
* RETURN
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Excited to be part of this, and if anyone want to meet, you know where to find me.
Please welcome our next speaker
@rakitadragan
from
@paradigm
🙌
Dragan is Ethereum core dev who worked on OpenEthereum, builded revm, and is working on reth.
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Just released revm `v3.0.0`.
It got more friendly return types. Got split into an interpreter, precompile, primitives and revm crates. It is now using ruint as primitive lib. and interpreter got a little bit faster, 15-20% for snailtracer.
Enjoy:
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revm just got a little bit better, awesome work 🛠️ by
@thedevbirb
!
A shared memory between calls just got merged on revm! So happy of the work made in the last month with the help of
@rakitadragan
and
@DaniPopes
.
You can check all the development done and the performance implications here!
How does it work? 1/2
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Did a sneak peek presentation about Reth in the first days of June at
@ethbelgrade
and the video just dropped
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@0xdoug
It is complex, memory gas is needed as ddos protection but present gas calculation for expansion is unnecessary complex.
And there are two types of gas usage here, on memory copy/write and memory resize/expansion.
Additional problem is that memory is per call and most evms are
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And
@GuidoVranken
did an amazing job and found a few consensus bugs that were expressly fixed.
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Thinking about Revm endgame lately. Does it even exist, what would it look like, and what scope would it take.
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A lot of blockchains will introduce some kind of rent fee or temporary data, paying only once for data to be forever saved is not feasible. Not that urgent as state growth is not that big, it is problem for the future.
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See you in Belgrade 👋
📢 NEW SPEAKER ANNOUNCEMENT
We're delighted to host
@rakitadragan
from
@paradigm
as a speaker at ETH Belgrade 2024.
We can't wait to hear from him. 💪
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👀
1/🚀 Introducing the beta release of Arbiter, an innovative agent-based analysis tool for the EVM. Arbiter enables fast, precise modeling and economic fuzzing for the DeFi ecosystem, leveraging Rust for top performance.
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So when they asked me to join them to build a new Ethereum node written in Rust that uses revm, it was a no-brainer decision for me.
9 months later we have our alpha and I am very proud of what we have accomplished. And this is just the beginning!
5/
We are excited to release Reth v0.1.0-alpha! 🎉🎉🎉
Reth is a modular, contributor-friendly, and blazing-fast Ethereum node, in Rust, using the Apache/MIT license.
Let's unpack what is behind today's release.
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Ranking of Ethereum concepts that mess with core devs :
1. Selfdestruct
2. State clear (or to be precise empty state before SpuriousDragon)
Bonus points for the combo of both!
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As zkp noob, I want to educate myself to know what is happening inside there. Paper `From Zero (Knowledge) to Bulletproof` is a fantastic helper on that path:
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The king 👑 found another bug.
revm v3.3.0 is published. And for more info, bug PR can be found here:
spent hours debugging execution error on goerli only to find out it was caused by contract with code `0x30ff`
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When chad comes and do its thing! 👑
My first PR got merged in revm. A blazing fast EVM implementation in Rust. It’s around 3x faster than geth. I’m looking at what to work on next, so lmk if you need something around revm or reth
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Put revm on it 👀
1/ We are excited to announce Succinct Processor 1 (SP1), our first generation, 100% open-source zkVM that proves arbitrary Rust programs.
SP1 targets an order of magnitude performance improvement vs. existing zkVMs, and is already up to 28x faster for certain programs.
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when one comment gives you that warm and fuzzy feeling inside! ♥️
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Shower idea💡... Ethereum should explore charging the state access fee 🧾 from the contract balance and not from ⛽ gas. Did anyone poke around this?
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If you are using Revm this is the treasure trove!
This repo contains all reth/foundry inspectors, and now it is a lot easier to use them.
We have refactored out Reth's EVM Inspectors built on Revm to a separate repository for the simulatoooors of the world to use.
Features Revm Inspectors for Parity-style and Geth-style traces, as well as the JS Inspector.
Now used in both Reth & Foundry!
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Still easier than it was working on OpenEthereum 🥲
building reth has been 10-100x times harder than foundry
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Check it out, it has a very nice interface!
Introducing trevm:
trevm is a loving extension of
@rakitadragan
's revm, designed to simplify high-level EVM flows
trevm aims to simplify gas-estimation, transaction simulation, and block and bundle construction for Ethereum and rollups
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Amazing to see it!
the pr to add reth as an eligible project for
@protocolguild
was just merged - the first new client to be added since the Pilot started in 2022!
welcome to the Guild =)
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Big announcment! Reth v1.0 got released! 🦀
🚨 Releasing Reth 1.0 🚨
After almost two years of development and a successful audit by Sigma Prime, we are finally releasing Reth 1.0, the first “prod-ready” release of our blazing-fast Ethereum execution client. We invite RPC providers and stakers to run Reth.
More below.
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If you are interested in step by step guide in adding precompile to revm, read this 👇
1/9
I added the `P256VERIFY` precompile into Revm, the implementation of the EVM used also inside Reth!
In this thread I'll share how easy it is to add a new precompile and immediately have it ready to work.
Let's go! 🧵
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The balance will be lost, as execution of selfdestructed is done after balance is added to target :)
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📔 Documentation is made to help onboard and is the best place to dive in:
Evm contains context 📦and handlers (logic)⚙️:
EvmBuilder 🏗️ builds and modifies Evm (with a few examples) :
And handlers ⚙️ where we refactored logic
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The idea for improvement that we can do right now is cache the jump/"gas block" table. This will increase DB footprint, and move checks to contract creation, but will decrease call execution time. Idea is already covered as part of EOF, more on it here:
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Foundry was and is amazing and it got very popular, and with it the revm too. it was very exciting to see adoption by the community while I supported the team from the background. You could see that the people there are just special.
4/
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For last, most impressive thing is when this starts to get used in foundry tests, speedup is very noticable. For example, Solmate tests got from ~3.2s to ~2.3s that is 1/3 of time optimized away. And others are reporting similar thing.
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Vyper team is amazing, they refactored pyrevm and started using it inside Vyper tests. This opens Revm even more for usage in python, and I like how they used Revm more creatively by directly calling Handler and JournaledState.
new pyrevm release, representing a collaborative effort between the
@vyperlang
and
@paradigm
teams! notable features of this release include low-level access to the revm journal machinery. we intend to use pyrevm for testing vyper and perhaps /
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And you can get it right now by using nightly foundry.
new nightly dropped just dropped
3.8 seconds to run all of solmates tests with 512 fuzz runs vs yesterday's nightly taking 3.2 seconds to run the same tests with 256 fuzz runs
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noice
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This is a big one!
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revm::Evm now consists of Context (Data) 💽 and Handler (Logic) ⚙️ .
This allows for making more efficient and creative inspection logic.
`Inspectors` are removed but still supported. Check how to use them:
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It started in 2020 with me working on OpenEthereum at Gnosis, parity moved away from the codebase that was getting hard to maintain, and there were talks of rewriting it from scratch. I thought a lot about architecture and even named it reth
2/
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And all of that in a year and a half. (hm, I should probably make a timeline and put it somewhere)
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