Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id E60E2200CFC for ; Wed, 13 Sep 2017 18:17:05 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id E50321609C9; Wed, 13 Sep 2017 16:17:05 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 35D321609CA for ; Wed, 13 Sep 2017 18:17:05 +0200 (CEST) Received: (qmail 58342 invoked by uid 500); 13 Sep 2017 16:17:03 -0000 Mailing-List: contact issues-help@ignite.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@ignite.apache.org Delivered-To: mailing list issues@ignite.apache.org Received: (qmail 58332 invoked by uid 99); 13 Sep 2017 16:17:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Sep 2017 16:17:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id 99A15185D00 for ; Wed, 13 Sep 2017 16:17:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id dij-EVNCmzR1 for ; Wed, 13 Sep 2017 16:17:02 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 6C5375FD1B for ; Wed, 13 Sep 2017 16:17:01 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id C3CBDE002C for ; Wed, 13 Sep 2017 16:17:00 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 5FA0825381 for ; Wed, 13 Sep 2017 16:17:00 +0000 (UTC) Date: Wed, 13 Sep 2017 16:17:00 +0000 (UTC) From: "Pavel Tupitsyn (JIRA)" To: issues@ignite.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (IGNITE-6372) .NET: Direct offheap access MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Wed, 13 Sep 2017 16:17:06 -0000 Pavel Tupitsyn created IGNITE-6372: -------------------------------------- Summary: .NET: Direct offheap access Key: IGNITE-6372 URL: https://issues.apache.org/jira/browse/IGNITE-6372 Project: Ignite Issue Type: Improvement Components: platforms Reporter: Pavel Tupitsyn Priority: Minor {{cache.get}} from .NET (thick client with in-process JVM) works currently like this: * Java {{cache.withKeepBinary().get()}}: copy a piece of unmanaged memory from off-heap to {{byte[]}} * Java {{BinaryWriter.write}}: copy {{byte[]}} to unmanaged memory * .NET {{BinaryReader.Read}}: deserialize object from unmanaged memory So there are two unnecessary memory copy operations. Ideally we should be able to pass off-heap pointer to .NET and read from there directly (this may be complicated due to page memory architecture where object can span across pages). At least we can try to eliminate first copy to {{byte[]}} and copy from page memory to a stream directly via some additional {{BinaryObject}} implementation. -- This message was sent by Atlassian JIRA (v6.4.14#64029)