From 1b8a219c54dedc50eacb88f9cbcbc8f681ccd7d1 Mon Sep 17 00:00:00 2001
From: Rob Clark <rob.clark@oss.qualcomm.com>
Date: Thu, 28 May 2026 12:03:16 -0700
Subject: [PATCH] perfetto: Increase SMB size

Increase local perfetto shared memory buffer size, to reduce dropped
traces.

Signed-off-by: Rob Clark <rob.clark@oss.qualcomm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/42013>
---
 src/util/perf/u_perfetto.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/perf/u_perfetto.cc b/src/util/perf/u_perfetto.cc
index 7f1fca8abf7..8cc94682f1a 100644
--- a/src/util/perf/u_perfetto.cc
+++ b/src/util/perf/u_perfetto.cc
@@ -211,6 +211,7 @@ util_perfetto_init_once(void)
    // Connects to the system tracing service
    perfetto::TracingInitArgs args;
    args.backends = perfetto::kSystemBackend;
+   args.shmem_size_hint_kb = 2000;
    perfetto::Tracing::Initialize(args);
 
    static UtilPerfettoObserver observer;