On Tue, Mar 26, 2013 at 10:38:46AM +0000, Richard W.M. Jones wrote: > + /* According to the docs, this just updates a field in the > + * sftp_handle structure, so there is no network traffic and it > + * cannot fail. > + */ > + libssh2_sftp_seek64(s->sftp_handle, offset);
While I was looking at the performance of qemu+ssh vs sshfs, I noticed that the line above has a catastrophic effect on performance, since it causes all readahead data to be thrown away. Ooops. I'm reworking the patch to make seeking more intelligent. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/