Bug 40 - helpwanted: sftp client is slower than it needs to be
Summary: helpwanted: sftp client is slower than it needs to be
Status: CLOSED FIXED
Alias: None
Product: Portable OpenSSH
Classification: Unclassified
Component: sftp (show other bugs)
Version: -current
Hardware: All All
: P2 enhancement
Assignee: OpenSSH Bugzilla mailing list
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2001-12-12 12:40 AEDT by Damien Miller
Modified: 2004-04-14 12:24 AEST (History)
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Description Damien Miller 2001-12-12 12:40:22 AEDT 
The sftp client does a round-trip for each block it send/retrieves from the
server. This kills performance, especially on latent links.

sftp-client.c:do_download and do_upload should be modified to have at least one
outstanding read request at any one time (i.e readahead).
Comment 1 Ben Lindstrom 2002-04-06 05:41:32 AEST 
This has been fixed in the CVS tree.  Both upload and downloading in sftp are 
allowed to have multiple outstanding blocks.

- Ben
Comment 2 Damien Miller 2004-04-14 12:24:17 AEST 
Mass change of RESOLVED bugs to CLOSED