[sysprof] tools: add --no-throttle sysprof-cli option

[Christian Hergert <chergert src gnome org>]

commit 03906a84c68861344bf3aa3d1abd339ec1fc10cc
Author: Christian Hergert <chergert redhat com>
Date:   Wed Mar 18 11:16:00 2020 -0700

    tools: add --no-throttle sysprof-cli option
    
    This allows disabling the CPU governer by switching to "performance".

 src/tools/sysprof-cli.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/src/tools/sysprof-cli.c b/src/tools/sysprof-cli.c
index 0798b23..32f3c42 100644
--- a/src/tools/sysprof-cli.c
+++ b/src/tools/sysprof-cli.c
@@ -203,6 +203,7 @@ main (gint   argc,
   gboolean no_memory = FALSE;
   gboolean no_network = FALSE;
   gboolean no_perf = FALSE;
+  gboolean no_throttle = FALSE;
   gboolean version = FALSE;
   gboolean force = FALSE;
   gboolean use_trace_fd = FALSE;
@@ -215,6 +216,7 @@ main (gint   argc,
   int fd;
   int flags;
   GOptionEntry entries[] = {
+    { "no-throttle", 0, 0, G_OPTION_ARG_NONE, &no_throttle, N_("Disable CPU throttling while profiling") },
     { "pid", 'p', 0, G_OPTION_ARG_INT, &pid, N_("Make sysprof specific to a task"), N_("PID") },
     { "command", 'c', 0, G_OPTION_ARG_STRING, &command, N_("Run a command and profile the process"), 
N_("COMMAND") },
     { "env", 'e', 0, G_OPTION_ARG_STRING_ARRAY, &envs, N_("Set environment variable for spawned process. Can 
be used multiple times."), N_("VAR=VALUE") },
@@ -504,6 +506,14 @@ Examples:\n\
       g_object_unref (source);
     }
 
+  if (no_throttle)
+    {
+      source = sysprof_governor_source_new ();
+      sysprof_governor_source_set_disable_governor (SYSPROF_GOVERNOR_SOURCE (source), TRUE);
+      sysprof_profiler_add_source (profiler, source);
+      g_object_unref (source);
+    }
+
   if (gnome_shell)
     {
       source = sysprof_proxy_source_new (G_BUS_TYPE_SESSION,