I got to 20MB/sec by reconfiguring Windows 7 to disable autotuning.
forcedirectio or not now has no speed effect anymore. Tested on a
gigabit network.
filename: /lib/modules/2.6.38-10-server/kernel/fs/cifs/cifs.ko
version: 1.71
description: VFS to access servers complying with the SNIA CIFS
Specification e.g. Samba and Windows
license: GPL
author: Steve French <sfre...@us.ibm.com>
srcversion: CF4A226E475E7B9C049C66F
depends:
vermagic: 2.6.38-10-server SMP mod_unload modversions
parm: CIFSMaxBufSize:Network buffer size (not including header).
Defau lt: 16384 Range: 8192 to 130048 (int)
parm: cifs_min_rcv:Network buffers in pool. Default: 4 Range: 1 to 64
(int)
parm: cifs_min_small:Small network buffers in pool. Default: 30
Range: 2 to 256 (int)
parm: cifs_max_pending:Simultaneous requests to server. Default: 50
Ra nge: 2 to 256 (int)
parm: echo_retries:Number of echo attempts before giving up and
reconn ecting server. Default: 5. 0 means never reconnect. (ushort)
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https://bugs.launchpad.net/bugs/810606
Title:
Slow cifs in 11.04
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