rsync on win32: a) slow, b) crashes

Greger Cronquist greger_cronquist at
Mon Dec 16 07:43:00 EST 2002

Hi Scott,

On this mailinglist, there is a thread called "Rsync
performance increase through buffering". The first
post in that thread, by Craig Barratt, contains a
number of patches that increases the transfer speed *a
lot* under windows/cygwin. Applying this patch alone,
however, hangs rsync, so you need to apply another
patch mentioned at

(brought to my attention by Jim Kleckner). If you do
all that you get a much more stable and a lot faster
rsync under windows.

If you don't want to apply all the patches, contact
me, and I'll send you patched sources or a binary that
works for me under win2k (though I haven't tried the
patches under linux).

Regards, Greger

 --- scott <rsync at> skrev: > Server is
Linux, client multi-boots Windows and
> Linux.   rsync v2.5.5,
> Windows 2K/XP, Linux 2.2.
> Under Windows, it takes *forever* to receive the
> file list, and once
> transfer is in progress gets under 1MB/s, compared
> to 6-8MB/s when booted to
> Linux.  Manual copy via SMB works at full speed
> regardless of OS.
> And I have to --exclude parts of the filesystem that
> are (aparently) too
> long, else it craps out:
> receiving file list ... overflow: flags=0x38 l1=216
> l2=45
> lastname=data0/host-mirrors/max/docs/Computers/News
> Snippets/Infoworld/security watch/Security Watch
> team celebrates anniversary
> with a report on the state of security news
> (InfoWorld)_files/securitywatch;sz=468x60;ord=_files
> ERROR: buffer overflow in receive_file_entry
> rsync error: error allocating core memory buffers
> (code 22) at
> /tmp/rsync-2.5.5/util.c(238)
> Any ideas?
> -- 
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