Continuing testing of Pavel's newest SMB3 multicredit patch series, which significantly improves large file read/write speeds to Samba and Windows from Linux. For this workload LInux to Linux - SMB3 seems faster than alternatives for read (copying from the server) but about the same as NFS for write (copy to server). Some additional data: client Ubuntu with 3.16-rc4 and Pavel's patch series, server Fedora 20 (3.14.9 kernel, and Samba server version 4.1.9) dd if=/mnt/testfile of=/dev/null bs=50M count=30 testfile is 1.5GB existing file, unmount/mount inbetween each large file copy to avoid any caching effect on client (although server will have cached it) SMB3 averaged 199MB/sec reads (copy from server) CIFS averaged 170MB/sec reads (copy from server) NFSv3 averaged 116MB/sec (copy from server) NFSv4 and v4.1 averaged 110MB/sec (copy from server) Write speeds (doing dd if=/dev/zero of=/mnt/testfile bs=60M count=25) were more widely varied but averaged similar speeds for copy to server for both NFSv3/v4/v4.1 and SMB3 (about 175MB/s) On Sun, Jul 13, 2014 at 2:23 PM, Steve French <smfrench@xxxxxxxxx> wrote: > Performance of Pavel's multicredit i/o SMB3 patches continues to look > good. Additional informal performance results below comparing cifs > mounts with smb3 mounts (vers=3.0) with and without Pavel's patch set. > I plan to do additional testing with large rsize/wsize (default with > Pavel's code is 1MB). > > 3.16-rc4 (Ubuntu) on client. Server is Windows 8.1. Both VMs on same > host (host disk is fairly fast SSD). > > Copy to server performance increased about 20% percent > dd if=/dev/zero of=/mnt/targetfile bs=80M count=25 > got similar results with or without conv=fdatasync > > 1st run copying to empty directory, 2nd run copying over targetfile, > (pattern repeated multiple times) averaging results > > New code (with Pavel's patches) > --------------------------------------------- > CIFS 167MB/s > SMB3 200MB/s > > Existing code (without his patches) > ------------------------------------------------ > SMB3 166MB/s > CIFS 164.5MB/s > > For large file reading SMB3 performance with Pavel's patches increased > 76% over existing SMB3 code > dd of=/dev/null if=/mnt/targetfile bs=80M count=25 > (mounting and unmounting between attempts to avoid caching effects on > the client) > > New code (with Pavel's patches) > --------------------------------------------- > CIFS 114MB/s > SMB3 216MB/s > > Existing code (without his patches) > ------------------------------------------------ > SMB3 123MB/s > CIFS 110MB/s > > -- > Thanks, > > Steve -- Thanks, Steve -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
