From 342c73f4f39ffd936bcd6f93d5c27492432be4e9 Mon Sep 17 00:00:00 2001
From: Jared Miller <jared@smell.flowers>
Date: Mon, 15 Dec 2025 18:40:04 -0500
Subject: [PATCH] Show FPS in benchmark log

---
 src/sandbox_main.zig | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/sandbox_main.zig b/src/sandbox_main.zig
index 4d187f7..a0ad956 100644
--- a/src/sandbox_main.zig
+++ b/src/sandbox_main.zig
@@ -85,15 +85,14 @@ const BenchmarkLogger = struct {
 
         if (!crossed_threshold and !big_jump and !heartbeat_due) return;
 
-        // determine note
-        var note: []const u8 = "";
-        if (crossed_threshold and now_above) {
-            note = "[!60fps]";
-        } else if (crossed_threshold and !now_above) {
-            note = "[+60fps]";
-        } else if (big_jump) {
-            note = "[jump]";
-        }
+        const fps = if (frame_ms > 0) 1000.0 / frame_ms else 0;
+
+        // determine note - show ! when below target fps
+        var note_buf: [16]u8 = undefined;
+        const note = if (now_above)
+            std.fmt.bufPrint(&note_buf, "[!{d:.0}fps]", .{fps}) catch ""
+        else
+            std.fmt.bufPrint(&note_buf, "[{d:.0}fps]", .{fps}) catch "";
 
         var buf: [256]u8 = undefined;
         const line = std.fmt.bufPrint(&buf, "[{d:.1}s] entities={d} frame={d:.1}ms update={d:.1}ms render={d:.1}ms {s}\n", .{