kernel/git - git - PowerEL Git System

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Author	SHA1	Message	Date
René Scharfe	c8b296450e	Fix checkout of large files to network shares on Windows XP Bigger writes to network drives on Windows XP fail. Cap them at 31MB to allow them to succeed. Callers need to be prepared for write() calls that do less work than requested anyway. On local drives, write() calls are translated to WriteFile() calls with a cap of 64KB on Windows XP and 256KB on Vista. Thus a cap of 31MB won't affect the number of WriteFile() calls which do the actual work. There's still room for some other version of Windows to use a chunk size of 1MB without increasing the number of system calls. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Shawn O. Pearce	5eef828bc0	fast-import: Stream very large blobs directly to pack If a blob is larger than the configured big-file-threshold, instead of reading it into a single buffer obtained from malloc, stream it onto the end of the current pack file. Streaming the larger objects into the pack avoids the 4+ GiB memory footprint that occurs when fast-import is processing 2+ GiB blobs. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Johannes Schindelin	ca31f0b5c2	Add an (optional, since expensive) test for >2gb clones Define GIT_TEST_CLONE_2GB=t if you want the test not to be skipped. The test works by constructing a repository larger than 2gb, and then cloning it. The repository is forced larger than 2gb by setting compression and delta depth to zero, and then adding just enough unique objects of a given size. The objects consist of a running decimal number in ASCII, padded by spaces. Should that break in the future, e.g. when pack v4 becomes default, there is a commented-out call to test-genrandom which can be substituted, but that uses more cycles than the current method. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	16 years ago

Author

SHA1

Message

Date

René Scharfe

c8b296450e

Fix checkout of large files to network shares on Windows XP

Bigger writes to network drives on Windows XP fail.  Cap them at 31MB to
allow them to succeed.  Callers need to be prepared for write() calls
that do less work than requested anyway.

On local drives, write() calls are translated to WriteFile() calls with
a cap of 64KB on Windows XP and 256KB on Vista.  Thus a cap of 31MB won't
affect the number of WriteFile() calls which do the actual work.  There's
still room for some other version of Windows to use a chunk size of 1MB
without increasing the number of system calls.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

15 years ago

Shawn O. Pearce

5eef828bc0

fast-import: Stream very large blobs directly to pack

If a blob is larger than the configured big-file-threshold, instead
of reading it into a single buffer obtained from malloc, stream it
onto the end of the current pack file.  Streaming the larger objects
into the pack avoids the 4+ GiB memory footprint that occurs when
fast-import is processing 2+ GiB blobs.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

15 years ago

Johannes Schindelin

ca31f0b5c2

Add an (optional, since expensive) test for >2gb clones

Define GIT_TEST_CLONE_2GB=t if you want the test not to be skipped.

The test works by constructing a repository larger than 2gb, and then
cloning it.

The repository is forced larger than 2gb by setting compression and
delta depth to zero, and then adding just enough unique objects of
a given size.

The objects consist of a running decimal number in ASCII, padded by
spaces.  Should that break in the future, e.g. when pack v4 becomes
default, there is a commented-out call to test-genrandom which can be
substituted, but that uses more cycles than the current method.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

16 years ago

3 Commits (eb3005e274d6d342cd4766598d9210995b5dca0c)