On Tue, 1 May 2007, Cabot, Mason B wrote: > Hello all, > > I've been testing the NAS performance of ext3/Openfiler 2.2 against > NTFS/WinXP and have found that NTFS significantly outperforms ext3 for > video workloads. The Windows CIFS client will attempt a poor-man's > pre-allocation of the file on the server by sending 1-byte writes at > 128K-byte strides, breaking block allocation on ext3 and leading to > fragmentation and poor performance. This will happen for many > applications (including iTunes) as the CIFS client issues these > pre-allocates under the application layer. > > I've posted a brief paper on Intel's OSS website > (http://softwarecommunity.intel.com/articles/eng/1259.htm). Please give > it a read and let me know what you think. In particular, I'd like to > arrive at the right place to fix this problem: is it in the filesystem, > VFS, or Samba? > > thanks, > Mason >
Just out of curiosity do other filesystems(reiser, xfs) take the same performance hit? Gerjard -- Gerhard Mack [EMAIL PROTECTED] <>< As a computer I find your faith in technology amusing. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/