From pr-return-1809-archive-asf-public=cust-asf.ponee.io@cassandra.apache.org Wed Apr 10 23:35:01 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 72AF3180763 for ; Thu, 11 Apr 2019 01:35:01 +0200 (CEST) Received: (qmail 60890 invoked by uid 500); 10 Apr 2019 23:35:00 -0000 Mailing-List: contact pr-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: pr@cassandra.apache.org Delivered-To: mailing list pr@cassandra.apache.org Received: (qmail 60847 invoked by uid 99); 10 Apr 2019 23:35:00 -0000 Received: from ec2-52-202-80-70.compute-1.amazonaws.com (HELO gitbox.apache.org) (52.202.80.70) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 10 Apr 2019 23:35:00 +0000 From: GitBox To: pr@cassandra.apache.org Subject: [GitHub] [cassandra] mulugetam opened a new pull request #309: Adding direct IO support for the read path. Message-ID: <155493930068.21834.12193206799168525094.gitbox@gitbox.apache.org> Date: Wed, 10 Apr 2019 23:35:00 -0000 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit mulugetam opened a new pull request #309: Adding direct IO support for the read path. URL: https://github.com/apache/cassandra/pull/309 This patch adds direct IO support for the read path using JDK-10+ API. The feature is optional and can be enabled via the enable_direct_io_for_read_path flag. A Cassandra stress test we conducted using the insanity schema showed a throughput gain of up to 60% on flash drives. Ref and discussion is here: https://issues.apache.org/jira/browse/CASSANDRA-14466 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: users@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: pr-unsubscribe@cassandra.apache.org For additional commands, e-mail: pr-help@cassandra.apache.org