From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id B82426B720 for ; Fri, 11 Dec 2020 13:09:31 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id B23B31FBDF for ; Fri, 11 Dec 2020 13:09:01 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [212.186.127.180]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id CE65F1FBCE for ; Fri, 11 Dec 2020 13:09:00 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 9059344F4F for ; Fri, 11 Dec 2020 13:09:00 +0100 (CET) From: Dominik Csapak To: pbs-devel@lists.proxmox.com Date: Fri, 11 Dec 2020 13:08:56 +0100 Message-Id: <20201211120859.17323-1-d.csapak@proxmox.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.289 Adjusted score from AWL reputation of From: address KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_DNSWL_MED -2.3 Sender listed at https://www.dnswl.org/, medium trust SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [extract.rs, zero.rs, mod.rs] Subject: [pbs-devel] [PATCH RFC proxmox/proxmox-backup] restore files from pxar sparsely X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Dec 2020 12:09:31 -0000 to be able to restore containers with big sparse files ideally(?) we would save hole information directly in the pxar archive and not even use zero chunks, so that we can have smaller pxar archives, and accurately restore sparse files like they were before for now, restore all files sparsely proxmox: Dominik Csapak (2): add tools/zero: add fast zero comparison code proxmox: add sparse_copy(_async) to tools::io proxmox/src/tools/io/mod.rs | 62 ++++++++++ proxmox/src/tools/mod.rs | 1 + proxmox/src/tools/zero.rs | 233 ++++++++++++++++++++++++++++++++++++ 3 files changed, 296 insertions(+) create mode 100644 proxmox/src/tools/zero.rs proxmox-backup: Dominik Csapak (1): pxar/extrac: if possible create files sparesly src/pxar/extract.rs | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) -- 2.20.1