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⇱ FEX 2510 Brings More Optimizations For x86_64 Binaries On AArch64 - Phoronix


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FEX 2510 Brings More Optimizations For x86_64 Binaries On AArch64

Written by Michael Larabel in Free Software on 9 October 2025 at 06:12 AM EDT. 1 Comment
FEX 2510 is out as the newest release of this open-source emulator for running x86/x86_64 applications on ARM64 (AArch64) Linux devices. Making FEX all the more popular is its continued ability for running Wine/Proton for handling Windows games on ARM64 Linux.

FEX 2510 ships with a number of just-in-time (JIT) improvements to address potential crashes, SSE4a support, and other improvements. FEX 2510 also enhanced its x87 handling in its slow path, and working on optimizing its memory usage for devices with 16GB of RAM or less.

FEX 2510 also implemented support for Extended Volatile Metadata (EVMD) on Linux. FEX 2510 also implemented the need for FEXLoader and then took the opportunity to rename FEXInterpreter to just FEX.

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Downloads and more details on this monthly FEX 2510 feature release via FEX-Emu.com.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.