# Go Ethereum's JIT-EVM

DevFeed: [Go Ethereum's JIT-EVM](<https://devfeed.tech/articles/go-ethereum-s-jit-evm-16760.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2016/06/02/go-ethereums-jit-evm>)

Author: Jeffrey Wilcke

Published: 2016-06-02T16:21:36Z

Content type: article

Language: en

Sources: [Ethereum Foundation Blog](<https://devfeed.tech/sources/ethereum-foundation-blog.md>)

Topics: [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [JIT](<https://devfeed.tech/topics/jit.md>), [virtual machines](<https://devfeed.tech/topics/virtual-machines.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>)

Tags: [compilation](<https://devfeed.tech/tags/compilation.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [go](<https://devfeed.tech/tags/go.md>), [hash](<https://devfeed.tech/tags/hash.md>), [identifier](<https://devfeed.tech/tags/identifier.md>), [jit](<https://devfeed.tech/tags/jit.md>), [research-development](<https://devfeed.tech/tags/research-development.md>), [virtual-machines](<https://devfeed.tech/tags/virtual-machines.md>)

## AI overview

The article explains how the Ethereum Virtual Machine executes bytecode and how a JIT-EVM approach changes that process. The JIT-EVM looks up compiled programs by a code hash, runs a cached program when available, and otherwise executes the bytecode while compiling a JIT program in the background.

## Source excerpt

The Ethereum Virtual machine is kind of different than most other Virtual Machines out there. In my previous post I already explained how it's used and described some of its characteristics. The Ethereum Virtual Machine (EVM) is a simple but powe...