[cmdline] Add "profstat" command to display profiling statistics

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/config/config.c b/src/config/config.c
index 98d3d8b297d45250cc0588e4a0cd08d51b76281c..6c8b9551a4b7de212f3e773276f88b0c50ec07d8 100644 (file)
--- a/src/config/config.c
+++ b/src/config/config.c
@@ -290,6 +290,9 @@ REQUIRE_OBJECT ( console_cmd );
 #ifdef IPSTAT_CMD
 REQUIRE_OBJECT ( ipstat_cmd );
 #endif
+#ifdef PROFSTAT_CMD
+REQUIRE_OBJECT ( profstat_cmd );
+#endif
 
 /*
  * Drag in miscellaneous objects

diff --git a/src/config/general.h b/src/config/general.h
index 589798fb20841b3cf39339d159c073d313fd3828..72cfc3b86f01b4cf5720710d11aa63bec361dae5 100644 (file)
--- a/src/config/general.h
+++ b/src/config/general.h
@@ -149,6 +149,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 //#define PING_CMD             /* Ping command */
 //#define CONSOLE_CMD          /* Console command */
 //#define IPSTAT_CMD           /* IP statistics commands */
+//#define PROFSTAT_CMD         /* Profiling commands */
 
 /*
  * ROM-specific options

diff --git a/src/hci/commands/profstat_cmd.c b/src/hci/commands/profstat_cmd.c
new file mode 100644 (file)
index 0000000..e4c9e5a
--- /dev/null
+++ b/src/hci/commands/profstat_cmd.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdio.h>
+#include <getopt.h>
+#include <ipxe/command.h>
+#include <ipxe/parseopt.h>
+#include <usr/profstat.h>
+
+/** @file
+ *
+ * Profiling commands
+ *
+ */
+
+/** "profstat" options */
+struct profstat_options {};
+
+/** "profstat" option list */
+static struct option_descriptor profstat_opts[] = {};
+
+/** "profstat" command descriptor */
+static struct command_descriptor profstat_cmd =
+       COMMAND_DESC ( struct profstat_options, profstat_opts, 0, 0, NULL );
+
+/**
+ * The "profstat" command
+ *
+ * @v argc             Argument count
+ * @v argv             Argument list
+ * @ret rc             Return status code
+ */
+static int profstat_exec ( int argc, char **argv ) {
+       struct profstat_options opts;
+       int rc;
+
+       /* Parse options */
+       if ( ( rc = parse_options ( argc, argv, &profstat_cmd, &opts ) ) != 0 )
+               return rc;
+
+       profstat();
+
+       return 0;
+}
+
+/** Profiling commands */
+struct command profstat_commands[] __command = {
+       {
+               .name = "profstat",
+               .exec = profstat_exec,
+       },
+};

diff --git a/src/include/usr/profstat.h b/src/include/usr/profstat.h
new file mode 100644 (file)
index 0000000..06ea251
--- /dev/null
+++ b/src/include/usr/profstat.h
@@ -0,0 +1,14 @@
+#ifndef _USR_PROFSTAT_H
+#define _USR_PROFSTAT_H
+
+/** @file
+ *
+ * Profiling
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+extern void profstat ( void );
+
+#endif /* _USR_PROFSTAT_H */

diff --git a/src/usr/profstat.c b/src/usr/profstat.c
new file mode 100644 (file)
index 0000000..9914274
--- /dev/null
+++ b/src/usr/profstat.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdio.h>
+#include <ipxe/profile.h>
+#include <usr/profstat.h>
+
+/** @file
+ *
+ * Profiling
+ *
+ */
+
+/**
+ * Print profiling statistics
+ *
+ */
+void profstat ( void ) {
+       struct profiler *profiler;
+
+       for_each_table_entry ( profiler, PROFILERS ) {
+               printf ( "%s: %ld +/- %ld ticks (%d samples)\n",
+                        profiler->name, profile_mean ( profiler ),
+                        profile_stddev ( profiler ), profiler->count );
+       }
+}