From b353b6e10aea35fced5ea59435d7523f8fceab70 Mon Sep 17 00:00:00 2001
From: yukang <moorekang@gmail.com>
Date: Fri, 14 Feb 2025 13:43:55 +0800
Subject: [PATCH] add notes for perf issue

---
 src/profiling/with_perf.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/profiling/with_perf.md b/src/profiling/with_perf.md
index 6cd98f88..51a22d18 100644
--- a/src/profiling/with_perf.md
+++ b/src/profiling/with_perf.md
@@ -52,6 +52,13 @@ you made in the beginning. But there are some things to be aware of:
 - You probably don't want incremental messing about with your
   profile. So something like `CARGO_INCREMENTAL=0` can be helpful.
 
+In case to avoid the issue of `addr2line xxx/elf: could not read first record` when reading
+collected data from `cargo`, you may need use the latest version of `addr2line`:
+
+```bash
+cargo install addr2line --features="bin"
+```
+
 ### Gathering a perf profile from a `perf.rust-lang.org` test
 
 Often we want to analyze a specific test from `perf.rust-lang.org`.