Benchmark #1422

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Elden Ring | BPFLAND vs RUSTLAND

CPU Limited scene in Gatefront Ruins (AI heavy) with no background load. 30 second frame recording with 0ms interval. Performance mode used in BPFLAND, Performance Governor/EPP

Submitted 3 days ago by summedkibbles36

Specifications
Label OS GPU CPU RAM OS specific
BPFLAND Steam Runtime 3 (sniper) AMD Radeon RX 7900 GRE (RADV NAVI31) AMD Ryzen 7 7800X3D 8-Core Processor 33 GB 6.14.6-cachyos1.lto.fc43.x86_64 performance
RUSTLAND main Steam Runtime 3 (sniper) AMD Radeon RX 7900 GRE (RADV NAVI31) AMD Ryzen 7 7800X3D 8-Core Processor 33 GB 6.14.6-cachyos1.lto.fc43.x86_64 performance
RUSTLAND old-main Steam Runtime 3 (sniper) AMD Radeon RX 7900 GRE (RADV NAVI31) AMD Ryzen 7 7800X3D 8-Core Processor 33 GB 6.14.6-cachyos1.lto.fc43.x86_64 performance
RUSTLAND pcpu Steam Runtime 3 (sniper) AMD Radeon RX 7900 GRE (RADV NAVI31) AMD Ryzen 7 7800X3D 8-Core Processor 33 GB 6.14.6-cachyos1.lto.fc43.x86_64 performance
# Top runs: * **Highest FPS**: `RUSTLAND old-main` with an average FPS approximately 5% higher than others. * **Smoothest FPS**: `RUSTLAND main` with lowest standard deviation, indicating the most consistent performance. * **Best overall**: `RUSTLAND old-main`, achieving both high frame rates and relative stability, with a compromise of slightly higher standard deviation. # Issues: * The `RUSTLAND pcpu` configuration exhibits significantly lower FPS stability, as indicated by an extremely high standard deviation and variance, suggesting inconsistent performance. This outlier run has underperformed by a large margin with some core levels reaching zero, and a much higher variance in frame delivery times, reflecting erratic performance. # Summary The benchmark compares performance between two different `sched_ext` scheduler modes, `BPFLAND` and `RUSTLAND`, applied to the Elden Ring game under a CPU-limited scenario. Across the tested configurations, `RUSTLAND old-main` demonstrates the best overall efficiency by combining superior average FPS with reasonable stability. Meanwhile, `RUSTLAND main` offers the most consistent frame timing despite slightly lower FPS values. However, a major issue persists with the `RUSTLAND pcpu` configuration, which presents significant instability, possibly due to its anomalous resource allocation and considerable variation in hardware usage.