diff --git a/docs/perf/2026-10-12-Ryzen9-9950X3D.md b/docs/perf/2026-10-12-Ryzen9-9950X3D.md
index 9c34542..5724530 100644
--- a/docs/perf/2026-10-12-Ryzen9-9950X3D.md
+++ b/docs/perf/2026-10-12-Ryzen9-9950X3D.md
@@ -24,3 +24,6 @@ Format: docs/perf/README.md. PERF-07 only, native ElyMark (C14.6), on Windows: `
 | PERF | Case | Runs | P50 ms | P95 ms | Target ms | Total memory MB |
 | --- | --- | --- | --- | --- | --- | --- |
 | PERF-07 | ElyMark notes.md (1,063,417 bytes) | 10 | 341 | 560 ✓ | 2000 |  |
+| PERF-07 | ElyMark notes.md on Linux (1,049,161 bytes, LF) | 10 | 297 | 582 ✓ | 2000 |  |
+
+Linux: the same machine under WSL 2 (Ubuntu 26.04), the release build staged by `packaging/stage.sh ely-mark` at 39955cd, timed by hand as on Windows (spawn to `mark: shown as "visual"`, a fresh `XDG_DATA_HOME` each run). The sample is `samples.markdown` written on Linux.