1 files changed, 5 insertions, 0 deletions
diff --git a/test/perf.zig b/test/perf.zig
index 087eea80..5f8fe18e 100644
--- a/test/perf.zig
+++ b/test/perf.zig
@@ -75,6 +75,11 @@ const fixtures = [_]Fixture{
     .{ .name = "large", .lines = 300_000, .cols = 60 },
     // the other failure mode: few lines, each one wider than any screen
     .{ .name = "longline", .lines = 400, .cols = 8_000 },
+    // The ESP32-P4 firmware's actual document: a handful of lines, one of them wider than its
+    // 40-column screen. Here because a profile taken on `small` is a profile of a 1,000-line line
+    // index, and the board has twelve lines - so the costs that dominate there are not the costs
+    // that dominate it. Pair with `--cols 40 --rows 12`.
+    .{ .name = "p4", .lines = 12, .cols = 240 },
 };
 
 const Op = enum {