From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=KoHZeUL2gkGIAJF2xQkxHfZUfvt0esbJn3zKMFVotVw=; b=PmAcA852FjzxuvE8iutLd1NsHc+fGEcvdrhwCpXcZvVJtsNr1AeFARmgvlkffgSBOC Qco7/wtJ9UPEmqiV835GCjsfj7su77tz+nqfK+U9PoonpO62w4jAciZrPpHzLV4eDKEg GqkjyKFoDv3JjGIt1fX5WZyGd4r9JyhsGi9/N24RGD9XqI6Zk8qOUc4kpScf+q6qlfzB SQdhA2eSXLDBo7d8rHX+fFGvDsMw2BcA9jfZsLvnyvYXLU+11CjP3fig2WNlPjfHVVeX jQEL6HoyT58cT5n5sWf+6+3lrzUaLPNJblaqeo/cJq2qcGw3ottleWkCPPZ60bBLjFOy 9Qtg== Subject: Re: [PATCH-perfbook] Fix a little grammar mistake References: <1629359518-3861-1-git-send-email-zhouzhouyi@gmail.com> <031ce7cf-750e-7a2d-f2ba-5e7b661df2c2@gmail.com> <20210819172940.GD4126399@paulmck-ThinkPad-P17-Gen-1> From: Akira Yokosawa Message-ID: <6751500e-62ed-3bcb-fe9f-290a826ed8da@gmail.com> Date: Fri, 20 Aug 2021 08:43:13 +0900 MIME-Version: 1.0 In-Reply-To: <20210819172940.GD4126399@paulmck-ThinkPad-P17-Gen-1> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit To: paulmck@kernel.org Cc: Zhouyi Zhou , perfbook@vger.kernel.org, luyang.co@gmail.com List-ID: On Thu, 19 Aug 2021 10:29:40 -0700, Paul E. McKenney wrote: > On Thu, Aug 19, 2021 at 07:54:30PM +0900, Akira Yokosawa wrote: >> Hello Zhouyi, >> >> On Thu, 19 Aug 2021 15:51:58 +0800, Zhouyi Zhou wrote: >>> Hi Paul, >>> >>> I think there is a little grammer mistake in answer to quick quiz 10.8, >>> I am not so sure because my English is not so well ;-) >>> >>> Thanks >>> Zhouyi >>> >>> Signed-off-by: Zhouyi Zhou >>> --- >>> datastruct/datastruct.tex | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/datastruct/datastruct.tex b/datastruct/datastruct.tex >>> index adb102d..68341f2 100644 >>> --- a/datastruct/datastruct.tex >>> +++ b/datastruct/datastruct.tex >>> @@ -963,1 +963,1 @@ not recommended for production use. >>> In theory, it isn't any safer, and a useful exercise would be >>> to run these programs on larger systems. >>> In practice, there are a lot more systems with more than 28~CPUs >>> - than there are systems with more than 448 CPUs. >> >> This can be parsed as follows: >> >> In practice, there are a lot more X than there are Y. >> >> , where >> >> X: systems with more than 28~CPUs >> Y: systems with more than 448 CPUs >> >> So there is no grammatical error here. >> Three uses of "than" in a sentence might be confusing, though. >> >> Paul might have an idea of a less-confusing sentence. > > Three "than"s in one sentence is a bit excessive, now that you guys > mention it. > > How about this? > > In practice, there are a lot more 28-CPU systems than there are > 448-CPU systems. > > I do not believe that the "more than"s are really adding much here. Well, the question part reads: > The dangers of extrapolating from 28 CPUs to 448 CPUs was made quite > clear in Section 10.2.3. But why should extrapolating up from 448 CPUs be > any safer? So, the point is "extrapolating up from 448 CPUs". Hence you used "more than"s in the answer, didn't you? Thanks, Akira > > Thoughts? > > Thanx, Paul > >> Thanks, Akira >> >>> + are systems with more than 448 CPUs. >>> In addition, other testing has shown that RCU read-side primitives >>> offer consistent performance and scalability up to at least 1024 CPUs. >>> }\QuickQuizEnd >>>