Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.programming.threads > #2773

I think i have made a mistake

Path csiph.com!usenet.pasdenom.info!gegeweb.org!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail
From Ramine <ramine@1.1>
Newsgroups comp.programming.threads
Subject I think i have made a mistake
Date Mon, 08 Dec 2014 17:25:27 -0800
Organization A noiseless patient Spider
Lines 19
Message-ID <m658e8$vpp$2@dont-email.me> (permalink)
Mime-Version 1.0
Content-Type text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding 7bit
Injection-Date Mon, 8 Dec 2014 22:24:09 +0000 (UTC)
Injection-Info mx02.eternal-september.org; posting-host="1ae5840e55f7298da80ae7cf67a723cd"; logging-data="32569"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+Jjx85FmVVGBSRJrM8ijLf"
User-Agent Mozilla/5.0 (Windows NT 6.0; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0
Cancel-Lock sha1:rWW+ebx3p8HD1VDDxOB8yiTErLY=
Xref csiph.com comp.programming.threads:2773

Show key headers only | View raw


Hello,


I think i have made a mistake about the follwing reader-writer lock of
Joe Duffy:

http://joeduffyblog.com/2009/02/20/a-more-scalable-readerwriter-lock-and-a-bit-less-harsh-consideration-of-the-idea/ 


Since a cache-line transfer between cores is not at all expensive,
so the serial part of the Amdahl's law for this reader-writer
above will still be smaller  with more and more cores,
so this will make this reader-writer lock above of Joe Duffy
really scalable on read-mostly scenarios.



Thank you,
Amine Moulay Ramdane.

Back to comp.programming.threads | Previous | Next — Next in thread | Find similar | Unroll thread


Thread

I think i have made a mistake Ramine <ramine@1.1> - 2014-12-08 17:25 -0800
  Re: I think i have made a mistake "Chris M. Thomasson" <no@spam.invalid> - 2014-12-10 21:12 -0800

csiph-web