From beda83efaa45fb04f142034f61eb1ae9fe872c59 Mon Sep 17 00:00:00 2001
From: David Höppner <0xffea@gmail.com>
Date: Fri, 4 Jan 2013 22:43:53 +0000
Subject: Add statistics for task_events_info

* ipc/ipc_mqueue.c (ipc_mqueue_send, ipc_mqueue_receive): Increment
counters for message sent and received.
* kern/ipc_kobject.c (ipc_kobject_server): Increment sent and received
counters for the kernel task.
* kern/task.c (task_create): Zero statistics.
* kern/task.c (task_info): Add task_events_info call.
* kern/task.h: Add statistics.
* vm/vm_fault.c (vm_fault_page): Increment zero_fills, pageins,
reactivations and cow_faults counters.
* vm/vm_fault.c (vm_fault_wire_fast): Increment faults counters.
* vm/vm_pageout.c (vm_pageout_scan): Increment reactivations counter.
---
 kern/task.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'kern/task.h')

diff --git a/kern/task.h b/kern/task.h
index c4251581..9bfea571 100644
--- a/kern/task.h
+++ b/kern/task.h
@@ -102,6 +102,15 @@ struct task {
 
 	/* Hardware specific data.  */
 	machine_task_t	machine;
+
+	/* Statistics */
+	natural_t	faults;		/* page faults counter */
+	natural_t	zero_fills;	/* zero fill pages counter */
+	natural_t	reactivations;	/* reactivated pages counter */
+	natural_t	pageins;	/* actual pageins couter */
+	natural_t	cow_faults;	/* copy-on-write faults counter */
+	natural_t	messages_sent;	/* messages sent counter */
+	natural_t	messages_received; /* messages received counter */
 };
 
 #define task_lock(task)		simple_lock(&(task)->lock)
-- 
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