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7992Re: performance - SMB

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  • docbillnet
    Jan 5, 2010
      1-2 GB divx doesn't really tell us much. If it is 1-2 GB and 15 minutes worth of video it is fairly high def, and your NSLU2 probably can not handle it. If it 1-2 GB and a couple of hours worth of video, I would think that would be fine. I have my NSLU2 over clocked as well. I then stream the files over wifi. If I see stuttering or such I usually blame the wifi connection. But I have found about 1200 kbps (+384 kbps for audio) seems to be the magical rate. If I encode my videos at a higher bit rate, I am more likely to notice skips and such. Although I have successfully played high definition videos at 2400 kbps, I just can't do it consistently.

      The other consideration is the client. The normal windows samba drivers are not well optimized. They add significant overhead. They also seem a bit flaky. It is not uncommon to see my samba transfer rates under Windows Vista to drop by a factor 10. e.g. I'll copy a file to my external drive that should take about 10 minutes and it will decide that day it will take 100 minutes.

      I do much better using NFS or streaming HTTP.

      However, some devices such as Network Media Tanks have very well optimized drivers. Movies play the same on my NMT regardless if I use NFS, Samba, or HTTP. So I typically stream my movies to my media player using HTTP (apache), because it allows me to directly access the files from a web menu.


      --- In nslu2-general@yahoogroups.com, SSzretter <sszretter@...> wrote:
      > I am looking for some feedback/advice - I put this NSLU2 in place of an
      > energy hog windows tower since it's primary purpose was for samba
      > sharing. So the new NSLU2 works ok, I get pretty decent throughput, but
      > I find for some reason I am no longer able to reliably stream video (1-2gb
      > divx files). Usually the video will start and play for a while - could be
      > 5 minutes, could be 30 minutes, then it gets jumpy, or stops/hangs. I never
      > had this problem with the tower.
      > The NSLU2 has the resistor removed so it is running at 266, and I am running
      > debian on it. The drive with the video has noatime set, and is ext2. The
      > only extra I installed is ftp. I think I have it pretty well optimized,
      > so it seems like it should be more reliable.
      > Any thoughts or advice?
      > Thanks!
      > [Non-text portions of this message have been removed]
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