An Early Look At Linux 6.18 Performance With Intel Xeon 6 Granite Rapids

Written by Michael Larabel in Software on 16 October 2025 at 10:40 AM EDT. Page 2 of 5. 3 Comments.

👁 Flexible IO Tester benchmark with settings of Type: Random Write, Engine: IO_uring, Direct: No, Block Size: 4KB, Job Count: 32, Disk Target: Default Test Directory. Linux 6.18 Git was the fastest.

👁 Flexible IO Tester benchmark with settings of Type: Random Write, Engine: IO_uring, Direct: No, Block Size: 4KB, Job Count: 64, Disk Target: Default Test Directory. Linux 6.18 Git was the fastest.

With FIO using IO_uring there were some random write performance improvements when using Linux 6.18 and an EXT4 file-system. However, some of these runs were a bit noisy on the dual socket Granite Rapids server.

👁 Timed GCC Compilation benchmark with settings of Time To Compile. Linux 6.17.2 was the fastest.

👁 Timed GDB GNU Debugger Compilation benchmark with settings of Time To Compile. Linux 6.17.2 was the fastest.

👁 Timed Godot Game Engine Compilation benchmark with settings of Time To Compile. Linux 6.17.2 was the fastest.

👁 Timed ImageMagick Compilation benchmark with settings of Time To Compile. Linux 6.18 Git was the fastest.

👁 Timed Linux Kernel Compilation benchmark with settings of Build: defconfig. Linux 6.17.2 was the fastest.

👁 Timed Linux Kernel Compilation benchmark with settings of Build: allmodconfig. Linux 6.17.2 was the fastest.

👁 Timed LLVM Compilation benchmark with settings of Build System: Ninja. Linux 6.17.2 was the fastest.

👁 Timed LLVM Compilation benchmark with settings of Build System: Unix Makefiles. Linux 6.17.2 was the fastest.

👁 Timed PHP Compilation benchmark with settings of Time To Compile. Linux 6.18 Git was the fastest.

For real-world / general purpose workloads involving I/O like code compilation of large programs, the results were mixed. There were some slight gains in some of the code compilation benchmarks on Linux 6.18 Git while in other cases slightly slower than 6.17 stable.

👁 ClickHouse benchmark with settings of 100M Rows Hits Dataset, First Run / Cold Cache. Linux 6.18 Git was the fastest.

👁 ClickHouse benchmark with settings of 100M Rows Hits Dataset, Second Run. Linux 6.17.2 was the fastest.

👁 ClickHouse benchmark with settings of 100M Rows Hits Dataset, Third Run. Linux 6.17.2 was the fastest.

For the ClickHouse database server, Linux 6.18 Git was performing slightly lower than the levels seen with Linux 6.17 stable.

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URL: https://www.phoronix.com/review/linux-618-intel-gnr/2

⇱ An Early Look At Linux 6.18 Performance With Intel Xeon 6 Granite Rapids - Phoronix

An Early Look At Linux 6.18 Performance With Intel Xeon 6 Granite Rapids