Alan, Thank you for the feedback. We will come up with a more generic API that is flexible for supporting all the platforms that have DirectIO. Will send it here for review soon.
Thanks, Lucy >-----Original Message----- >From: Alan Burlison [mailto:alan.burli...@oracle.com] >Sent: Friday, October 14, 2016 1:28 AM >To: Lu, Yingqi <yingqi...@intel.com>; Brian Burkhalter ><brian.burkhal...@oracle.com> >Cc: Kharbas, Kishor <kishor.khar...@intel.com>; nio-...@openjdk.java.net; >core-libs-dev@openjdk.java.net; Kaczmarek, Eric <eric.kaczma...@intel.com> >Subject: Re: Proposal for adding O_DIRECT support into JDK 9 > >As has been pointed out already, platforms other than Linux provide similar >functionality, yet this proposal does not provide any support for them. Even if >such support isn't added initially, the APIs added for the Linux implementation >should be generic enough that direct IO support could be added for other >platforms in the future, and that Java code using direct IO on Linux would work >on other direct IO enabled platforms as well. My concern is that the proposed >APIs are too Linux-specific to make that possible. > >I'm well aware of the issues in things like Hadoop and Apache Spark, their >over- >reliance on platform-specific functionality and native code has made it >extremely >difficult to get them to work well on platforms other than Linux/x86. We should >not make the same mistake in Java itself. > >-- >Alan Burlison >--
