Return-Path: X-Original-To: apmail-hbase-dev-archive@www.apache.org Delivered-To: apmail-hbase-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D2C8B6B07 for ; Thu, 16 Jun 2011 18:11:55 +0000 (UTC) Received: (qmail 32846 invoked by uid 500); 16 Jun 2011 18:11:55 -0000 Delivered-To: apmail-hbase-dev-archive@hbase.apache.org Received: (qmail 32815 invoked by uid 500); 16 Jun 2011 18:11:55 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 32807 invoked by uid 99); 16 Jun 2011 18:11:55 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Jun 2011 18:11:55 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of jason.rutherglen@gmail.com designates 209.85.212.41 as permitted sender) Received: from [209.85.212.41] (HELO mail-vw0-f41.google.com) (209.85.212.41) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Jun 2011 18:11:49 +0000 Received: by vws4 with SMTP id 4so1978624vws.14 for ; Thu, 16 Jun 2011 11:11:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type:content-transfer-encoding; bh=TGKMYyXp2hGBxcD7/kLOJwhr0GV2SoH5nuGegsW+32Q=; b=jwrv4aOabA+Ws0jq7fTPhf0JvjA3rT0Bs95Rokvs4oMaKiB2FVCiWwZ1oEzwV/TBNN +go/Nxxc4iLoaw69fxE2YVxjafvXkHuwIefXF1JyQFO8TCnt4OCXPYDm+GSBatAdiNfJ CLI5RvZHmN549C/8N1ZOmvUu8a+6YaIwfaJdc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=awwuJixHX1m8O7V8gfvUR/ipHC3pa8yO3fY2kHWcsFLffCW1y98qdlbJg2WurxA1BV OmM3xQeOkrZxVj/13+B+B+RqO+vqRNCCQHZgeoZrjAQ6R3Y81LQa9bJXsH97oX+i0vLe zwmJCHdF1g+gkc2uWhOq96H81bBEN5wxKNZV0= MIME-Version: 1.0 Received: by 10.52.181.168 with SMTP id dx8mr1662615vdc.172.1308247888142; Thu, 16 Jun 2011 11:11:28 -0700 (PDT) Received: by 10.52.182.193 with HTTP; Thu, 16 Jun 2011 11:11:28 -0700 (PDT) In-Reply-To: <917222.42878.qm@web65510.mail.ac4.yahoo.com> References: <917222.42878.qm@web65510.mail.ac4.yahoo.com> Date: Thu, 16 Jun 2011 11:11:28 -0700 Message-ID: Subject: Re: ConcurrentSkipListMap performance in the MemStore From: Jason Rutherglen To: dev@hbase.apache.org, apurtell@apache.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Virus-Checked: Checked by ClamAV on apache.org This one as well! https://github.com/mspiegel/lockfreeskiptree Hmm... I'll contact the author. On Thu, Jun 16, 2011 at 11:05 AM, Andrew Purtell wrot= e: >> From: Jason Rutherglen >> I found this paper and implementation of a "Snap Tree" that could >> perhaps be interesting, though the linear iteration performance isn't >> as good as CSLM. >> >> http://ppl.stanford.edu/papers/ppopp207-bronson.pdf >> >> https://github.com/nbronson/snaptree > > The code is copyrighted without any open source license designation or pr= eamble anywhere in the sources that I could find. > > =A0 - Andy > >