Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.albasani.net!newsfeed.straub-nv.de!news.glorb.com!npeer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!border3.nntp.dca.giganews.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail
NNTP-Posting-Date: Fri, 29 Apr 2011 23:10:32 -0500
Date: Fri, 29 Apr 2011 21:10:21 -0700
From: Patricia Shanahan <pats@acm.org>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
MIME-Version: 1.0
Newsgroups: comp.lang.java.programmer
Subject: Re: A question about synchronized threads
References: <3f249d87-aaf8-4732-9ee8-fd112cf82553@f31g2000pri.googlegroups.com> <ipen7h$dip$1@dont-email.me> <f56d0826-0b46-4822-9059-22159aebeec2@d26g2000prn.googlegroups.com> <ipev16$bo5$1@dont-email.me> <ipevfj$fpn$1@dont-email.me>
In-Reply-To: <ipevfj$fpn$1@dont-email.me>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Message-ID: <RoqdnU0C7ZolFibQnZ2dnUVZ_omdnZ2d@earthlink.com>
Lines: 29
X-Usenet-Provider: http://www.giganews.com
NNTP-Posting-Host: 75.8.126.96
X-Trace: sv3-Tn7U5RlbGGZrvDCQI6+BK/lg/S3xdxWt5qVU7NRM+n3l3ntzPSpOPeG7CWPBn+WM//hoel6J06Ax0dZ!TBqxACI0t+AmZqlDqJ9vWtJS3s6Z+haqJ7PUXK2+QL/p26VzU2IMeHsDbd+hSGVWlzOLy7wpUKhj!vf6bZ7n2YdeZffDOnKZDa4A1HywCzSW+oGdfn3rZK/c=
X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers
X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly
X-Postfilter: 1.3.40
X-Original-Bytes: 2524
Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.programmer:3373

On 4/29/2011 11:19 AM, Daniele Futtorovic wrote:
> On 29/04/2011 20:11, markspace allegedly wrote:
>> On 4/29/2011 9:09 AM, byhesed wrote:
>>>
>>> Thank you. I understand what you elaborated on.
>>
>>
>> I hope so. "Optimizing" threads is tricky, and when you reason about
>> how to optimize it's easy to make a mistake. Prominent Java engineers
>> (i.e., Doug Lea) have been known to make mistakes.
>>
>> Remember, m1 and m2 can't share mutual state. If they do, you're going
>> to have problems accessing any variables that are shared.
>
>> I'd be interested in seeing what it is you want to optimize. What does
>> this class really look like? I think it might be instructive for you to
>> post your full class, and let other comment on how best to "optimize" it.
>
> Ten bucks say it's a class with too many methods. ;)
>

It may only have two methods. However, I would not bet against it being
a class with too much unrelated data.

There are two methods in the class that operate on two sets of data that
are not only totally disjoint, but so unrelated that it does not matter
if they are inconsistent with each other.

Patricia