From 46aa62449ff4857117dcf6d11a78027679ffe4ec Mon Sep 17 00:00:00 2001
From: Griffin Smith <grfn@gws.fyi>
Date: Fri, 16 Apr 2021 10:49:46 -0400
Subject: feat(grfn/yeren): Install rr

This... mostly works! I had to install it from the latest master branch
to get it functioning on my CPU, hopefully once they release a new
version I can remove the override.

Change-Id: I863d2e822b149838c58aa1c1e7dc73a127a0aeb8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3022
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
---
 users/grfn/system/home/modules/development.nix | 10 ++++++++++
 users/grfn/system/system/machines/yeren.nix    |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/users/grfn/system/home/modules/development.nix b/users/grfn/system/home/modules/development.nix
index 327a3998d5c3..c33dad2b4c2b 100644
--- a/users/grfn/system/home/modules/development.nix
+++ b/users/grfn/system/home/modules/development.nix
@@ -56,6 +56,16 @@ with lib;
     lldb
     hyperfine
     clang-tools
+    (rr.overrideAttrs (_: rec {
+      version = "f25671d094edac8059cec56b98d7f10f2c740697";
+      src = pkgs.fetchFromGitHub {
+        owner = "rr-debugger";
+        repo = "rr";
+        rev = version;
+        sha256 = "149s4mw8vl8d3nx15sfp62z0izp2dibz99k720j75rjnkwk2bq2z";
+        fetchSubmodules = true;
+      };
+    }))
 
     clj2nix
     clojure
diff --git a/users/grfn/system/system/machines/yeren.nix b/users/grfn/system/system/machines/yeren.nix
index 7bb06716f79a..a44d73ed0466 100644
--- a/users/grfn/system/system/machines/yeren.nix
+++ b/users/grfn/system/system/machines/yeren.nix
@@ -43,6 +43,10 @@
     extraModprobeConfig = ''
       options snd-intel-dspcfg dsp_driver=1
     '';
+
+    kernel.sysctl = {
+      "kernel.perf_event_paranoid" = -1;
+    };
   };
 
   fileSystems = {
-- 
cgit 1.4.1