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From: Akira Yokosawa <akiyks@gmail.com>
To: paulmck@linux.vnet.ibm.com
Cc: perfbook@vger.kernel.org, Akira Yokosawa <akiyks@gmail.com>
Subject: [PATCH] cpu: Fix numbers in Performance of Mechanisms table in qqz
Date: Sat, 11 Jun 2016 15:39:31 +0900	[thread overview]
Message-ID: <9b971ea3-e84c-b4e1-e75b-7c545b24f7e3@gmail.com> (raw)

From 1ff97081c713ff51d5bc2e15f8ba7649427fac4f Mon Sep 17 00:00:00 2001
From: Akira Yokosawa <akiyks@gmail.com>
Date: Sat, 11 Jun 2016 15:28:20 +0900
Subject: [PATCH] cpu: Fix numbers in Performance of Mechanisms table in qqz

Numbers given in 'Comms Fabric' and 'Global Comms' rows in
Table D.1 seem wrong.

Their costs are given in ns unit, so they should match those given
in Table 3.1.

Also, their ratio should be calculated by cost(ns)/0.36(ns).

This commit fixes those numbers.

Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
---
 cpu/overheads.tex | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/cpu/overheads.tex b/cpu/overheads.tex
index 311c43e..0cf83f3 100644
--- a/cpu/overheads.tex
+++ b/cpu/overheads.tex
@@ -224,11 +224,11 @@ global agreement.
 	\hline
 	CAS cache miss		&          95.9	&         266.4 \\
 	\hline
-	Comms Fabric		&       4,500\textcolor{white}{.0}
-						&	7,500\textcolor{white}{.0} \\
+	Comms Fabric		&       3,000\textcolor{white}{.0}
+						&	8,330\textcolor{white}{.0} \\
 	\hline
-	Global Comms		& 195,000,000\textcolor{white}{.0}
-						& 324,000,000\textcolor{white}{.0} \\
+	Global Comms		& 130,000,000\textcolor{white}{.0}
+						& 361,000,000\textcolor{white}{.0} \\
 \end{tabular}
 \caption{Performance of Synchronization Mechanisms on 16-CPU 2.8GHz Intel X5550 (Nehalem) System}
 \label{tab:cpu:Performance of Synchronization Mechanisms on 16-CPU 2.8GHz Intel X5550 (Nehalem) System}
-- 
1.9.1


             reply	other threads:[~2016-06-11  6:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-11  6:39 Akira Yokosawa [this message]
2016-06-15 23:51 ` [PATCH] cpu: Fix numbers in Performance of Mechanisms table in qqz Paul E. McKenney
2016-06-18  2:48   ` Akira Yokosawa
2016-06-18  2:50     ` [PATCH v2] cpu: Fix numbers in Performance of Mechanisms tables Akira Yokosawa
2016-06-18  3:57       ` Paul E. McKenney

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