From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:49995 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1758597AbdENQdz (ORCPT ); Sun, 14 May 2017 12:33:55 -0400 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v4EGXnOK019516 for ; Sun, 14 May 2017 12:33:49 -0400 Received: from e18.ny.us.ibm.com (e18.ny.us.ibm.com [129.33.205.208]) by mx0b-001b2d01.pphosted.com with ESMTP id 2aedkmmyu0-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sun, 14 May 2017 12:33:49 -0400 Received: from localhost by e18.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sun, 14 May 2017 12:33:48 -0400 Date: Sun, 14 May 2017 09:33:47 -0700 From: "Paul E. McKenney" Subject: Re: Question about performance figures in Section 9 Reply-To: paulmck@linux.vnet.ibm.com References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Message-Id: <20170514163347.GO3956@linux.vnet.ibm.com> Sender: perfbook-owner@vger.kernel.org List-ID: To: Junchang Wang Cc: perfbook@vger.kernel.org On Sun, May 14, 2017 at 11:02:18PM +0800, Junchang Wang wrote: > Hi list, > > I'm reading Section 9 which is excellent. I have one quick question > now. For performance figures (e.g. 9.16 on page 178), what's the > pattern of add/del being performed? Are we assuming a mostly read > rarely write scenario? I'm totally fine if that's the case. Just want > to make sure. It is a read-only workload, as noted in the discussion of Figure 9.5. For more realistic data structures and workloads, see Chapter 10. Thanx, Paul