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From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: linux-kernel@vger.kernel.org
Cc: Michael Neuling <mikey@neuling.org>,
	Balbir Singh <balbir@linux.vnet.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] Update taskstats-struct document for scaled time accounting
Date: Fri, 06 Jun 2008 15:57:28 -0700	[thread overview]
Message-ID: <4849C0D8.3050006@ct.jp.nec.com> (raw)

From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

Update Documentation/accounting/taskstats-struct.txt for TASKSTATS_VERSION 6,
adding scaled time accounting.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
 Documentation/accounting/taskstats-struct.txt |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Documentation/accounting/taskstats-struct.txt b/Documentation/accounting/taskstats-struct.txt
index 8aa7529..cd784f4 100644
--- a/Documentation/accounting/taskstats-struct.txt
+++ b/Documentation/accounting/taskstats-struct.txt
@@ -24,6 +24,8 @@ There are three different groups of fields in the struct taskstats:
 
 4) Per-task and per-thread context switch count statistics
 
+5) Time accounting for SMT machines
+
 Future extension should add fields to the end of the taskstats struct, and
 should not change the relative position of each field within the struct.
 
@@ -164,4 +166,8 @@ struct taskstats {
 	__u64	nvcsw;			/* Context voluntary switch counter */
 	__u64	nivcsw;			/* Context involuntary switch counter */
 
+5) Time accounting for SMT machines
+	__u64	ac_utimescaled;		/* utime scaled on frequency etc */
+	__u64	ac_stimescaled;		/* stime scaled on frequency etc */
+	__u64	cpu_scaled_run_real_total; /* scaled cpu_run_real_total */
 }
-- 
1.5.4.1


                 reply	other threads:[~2008-06-06 22:58 UTC|newest]

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