Hi all, my test: copy file from Ubuntu to WinXP and viceversa. File is Ubuntu ISO 733 mb. My network is a wi-fi with about 20 MB transmission speed from PC to router and 100 MB transmission from router to Ubuntu Server. This is my modinfo cifs:
~$ modinfo cifs filename: /lib/modules/2.6.38-11-generic/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 <[email protected]> srcversion: 25ACAA091644A0398406E12 depends: vermagic: 2.6.38-11-generic SMP mod_unload modversions 686 parm: CIFSMaxBufSize:Network buffer size (not including header). Default: 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 Range: 2 to 256 (int) parm: echo_retries:Number of echo attempts before giving up and reconnecting server. Default: 5. 0 means never reconnect. (ushort) I'm usng Ubuntu 11.04 server with latest Kernel 2.6.38-11. This is my speed transfer: sudo dd if=/media/DISCO1/iso/ubuntu-9.04-desktop-i386.iso of=/media/Prova 1431464+0 record dentro 1431464+0 record fuori 732909568 byte (733 MB) copiati, 36,3641 s, 20,2 MB/s where /media/DISCO1/iso... is my raid HD and /media/Prova is a WinXP directory. My speed transmission is in line with my network speed (24 MB/s). I have removed all configuration parameters to do these test. I don't think this is a bug, but it is a consequence as the cifs.ko module is compiled. Let me know your comments, many thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/810606 Title: Slow cifs in 11.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/810606/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
