From: Junio C Hamano <gitster@pobox.com>
To: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 08/11] streaming_write_entry(): support files with holes
Date: Mon, 16 May 2011 07:39:20 -0700 [thread overview]
Message-ID: <7v62pan207.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <BANLkTi=VKb44yYuXdKLxrvFCVkfsDZSb4Q@mail.gmail.com> (Nguyen Thai Ngoc Duy's message of "Mon, 16 May 2011 17:53:39 +0700")
Nguyen Thai Ngoc Duy <pclouds@gmail.com> writes:
> On Mon, May 16, 2011 at 7:30 AM, Junio C Hamano <gitster@pobox.com> wrote:
>> One typical use of a large binary file is to hold a sparse on-disk hash
>> table with a lot of holes. Help preserving the holes with lseek().
>
> Should that be done only with big enough holes? Random zeros may
> increase the number of syscalls unnecessarily.
I think that is a valid concern, but doesn't the code do that already?
next prev parent reply other threads:[~2011-05-16 14:39 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-16 0:30 [PATCH 00/11] writing out a huge blob to working tree Junio C Hamano
2011-05-16 0:30 ` [PATCH 01/11] packed_object_info_detail(): do not return a string Junio C Hamano
2011-05-17 0:45 ` Thiago Farina
2011-05-17 2:36 ` Junio C Hamano
2011-05-16 0:30 ` [PATCH 02/11] sha1_object_info_extended(): expose a bit more info Junio C Hamano
2011-05-16 0:30 ` [PATCH 03/11] sha1_object_info_extended(): hint about objects in delta-base cache Junio C Hamano
2011-05-16 0:40 ` Shawn Pearce
2011-05-16 0:30 ` [PATCH 04/11] unpack_object_header(): make it public Junio C Hamano
2011-05-16 0:30 ` [PATCH 05/11] write_entry(): separate two helper functions out Junio C Hamano
2011-05-16 0:30 ` [PATCH 06/11] streaming: a new API to read from the object store Junio C Hamano
2011-05-18 8:09 ` Jeff King
2011-05-19 1:52 ` Junio C Hamano
2011-05-16 0:30 ` [PATCH 07/11] streaming_write_entry(): use streaming API in write_entry() Junio C Hamano
2011-05-16 0:30 ` [PATCH 08/11] streaming_write_entry(): support files with holes Junio C Hamano
2011-05-16 10:53 ` Nguyen Thai Ngoc Duy
2011-05-16 14:39 ` Junio C Hamano [this message]
2011-05-17 1:18 ` Nguyen Thai Ngoc Duy
2011-05-17 5:23 ` Junio C Hamano
2011-05-16 13:03 ` Thiago Farina
2011-05-16 0:30 ` [PATCH 09/11] streaming: read non-delta incrementally from a pack Junio C Hamano
2011-05-16 0:58 ` Shawn Pearce
2011-05-16 5:00 ` Junio C Hamano
2011-05-16 0:30 ` [PATCH 10/11] sha1_file.c: expose helpers to read loose objects Junio C Hamano
2011-05-16 0:30 ` [PATCH 11/11] streaming: read loose objects incrementally Junio C Hamano
2011-05-16 0:47 ` [PATCH 00/11] writing out a huge blob to working tree Shawn Pearce
2011-05-18 6:41 ` Jeff King
2011-05-18 7:08 ` Jeff King
2011-05-18 7:50 ` Jeff King
2011-05-18 15:12 ` Junio C Hamano
2011-05-18 8:17 ` Jeff King
2011-05-19 21:33 ` [PATCH v2 " Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 01/11] packed_object_info_detail(): do not return a string Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 02/11] sha1_object_info_extended(): expose a bit more info Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 03/11] sha1_object_info_extended(): hint about objects in delta-base cache Junio C Hamano
2011-05-20 23:05 ` René Scharfe
2011-05-21 1:49 ` Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 04/11] unpack_object_header(): make it public Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 05/11] write_entry(): separate two helper functions out Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 06/11] streaming: a new API to read from the object store Junio C Hamano
2011-05-20 23:05 ` René Scharfe
2011-05-21 1:49 ` Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 07/11] streaming_write_entry(): use streaming API in write_entry() Junio C Hamano
2011-05-20 22:52 ` Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 08/11] streaming_write_entry(): support files with holes Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 09/11] streaming: read non-delta incrementally from a pack Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 10/11] sha1_file.c: expose helpers to read loose objects Junio C Hamano
2011-05-19 21:33 ` [PATCH v2 11/11] streaming: read loose objects incrementally Junio C Hamano
2011-05-19 21:44 ` [Not A PATCH v2 02/11] interdiff Junio C Hamano
2011-05-19 22:21 ` [PATCH v2 00/11] writing out a huge blob to working tree Jeff King
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