TiVoHD and S3 users post your MRV transfer speeds

Discussion in 'TiVo Series3 HDTV DVRs' started by BlackBetty, Oct 23, 2007.

  1. MickeS

    MickeS Active Member

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    I just noticed that TTG from my S3 is faster if I play a recording (any recording) on the S3 while I'm doing the transfer. Odd. I get about 12 mbps if I'm in the menus, if I navigate in the menus it drops every time the TiVo does something, but if I play a show, I get about 14-15 mbps.

    I wonder why.
     
  2. Nov 1, 2007 #102 of 149
    TiivoDog

    TiivoDog FIOS Fast!!!

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    Central PA
    I have several Tivo different Tivo units with noted transfer speeds for comparison:

    S3 (Wired) to S3 (Wired)
    - SD 30 Min Show takes 3 minutes to transfer
    - HD 30 Min Show takes 15 minutes to transfer​

    S2DT (Wired) to S3 (Wired)
    - SD 30 Min Show takes 6 Minutes to transfer​

    S2 (Wired USB) to S3 (Wired)
    - SD 30 Min Show takes 30 Minutes to transfer​

    S2 (Wireless G USB) to S3 (Wired)
    - SD 30 Min Show takes 32 Minutesto transfer​
     
  3. Nov 1, 2007 #103 of 149
    HDTiVo

    HDTiVo Not so Senior Member

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    I noticed a larger pick up in rate (~40-50%,) though I only checked that by watching the recording actually transfering. I thought it might be a clever idea to put more priority on a transfer that was being watched to ensure a good buffer?
     
  4. Nov 2, 2007 #104 of 149
    shadowboxer777

    shadowboxer777 New Member

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    Oct 24, 2007
    My Tivo is now transferring at a whopping 1.12 MB/s that's a little under 10% of the 100Mb/s Connection that the TiVo has.

    I did call tivo, and their response is this:

    TiVo is performing an encryption on the outgoing stream as the file is being transferred out over the ethernet port, this means that there will be a high cpu utilization on the TiVo during transfers which may also result in slow menu responses.

    TiVo is aware of this issue and is working to resolve it; in the meantime, you can try to tune to a non received station (grey screen). which might up your bandwidth a little.

    good luck!
     
  5. Nov 4, 2007 #105 of 149
    BankZ

    BankZ New Member

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    I am getting about 1.2 MBps (~9.6 Mbps) on a wired 10/100 connection. Does that sound right? Should I be looking at my network to see if I can speed things up?
     
  6. Nov 4, 2007 #106 of 149
    moyekj

    moyekj Well-Known Member

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    Mission...
    If that's THD->THD that sounds about right. If that's S3->S3 it's about half what I get on average. As mentioned before there are many factors affecting transfers including what your Tivos are tuned to and doing at the time of transfers, so posting speeds without indicating all the details is really not that valuable.
     
  7. Nov 4, 2007 #107 of 149
    BankZ

    BankZ New Member

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    Aug 16, 2007
    That's THD -> PC
     
  8. Nov 4, 2007 #108 of 149
    moyekj

    moyekj Well-Known Member

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    Mission...
    Then that's about right. You can probably speed things up by tuning your THD to channels you don't receive while the transfer happens.
     
  9. Nov 4, 2007 #109 of 149
    bkdtv

    bkdtv New Member

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    You'll get up to 10-11Mbps from TivoHD -> PC if both tuners are set to channels you do not receive.
     
  10. Nov 6, 2007 #110 of 149
    Tico

    Tico Bear Down Cats!!!!!

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    S3->PC with both tuners tuned to channels I don't recieve..

    Averaged 22.1 mbps via DU meter for 6 transfers set up overnight.....
     
  11. Dec 5, 2007 #111 of 149
    bareyb

    bareyb Under Maintenance TCF Club

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    There is a HUGE difference between the speeds you get with the TiVo wireless G adapters and what you get off of an "N" protocol wireless router. We are talking the difference between waiting for a show to be almost over before watching it and being able to watch it in real time. With the "N" protocol the speeds are DOUBLE that of "real time" with the "G" wireless adapters from TiVo I was getting about 1/3 of that speed at best.


    Transfer of a one half hour Sitcom with N router and wireless G adapters from TIVo = 50 minutes

    Transfer of a one half hour Sitcom with Direct Ethernet cable from Wireless N Router (bypass the wireless adapters) = 15 minutes!!!



    My setup: Apple Airport Extreme in the office wirelessly connected to another Apple Airport Extreme in my sound system rack in the living room. From there the second router is connected to the S3 TiVos with a direct ethernet cable connection (vs. using wireless G adapters). It would appear that the new "N" routers rival the speeds of a hardwired network. I'm beyond happy. Having to wait and wait and wait for the shows to transfer was making MRV a whole lot less useful. If you can get an N protocol router it's the next best thing to hardwired. :up:
     
  12. Dec 5, 2007 #112 of 149
    FUBAR

    FUBAR That Guy

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    I'm getting around 850KB - 880KB a second from my series 3 that's wired into a G bridge, that's going to a G laptop.

    I also have a computer plugged into a switch plugged into that bridge, and i'm getting about 1.9MB a second from that computer.
     
  13. Dec 5, 2007 #113 of 149
    VideoGrabber

    VideoGrabber New Member

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    S3 -> PC TTG hardwired via TiVoDesktop 2.5.1, I get:

    = 14 MBit/sec if both tuners are running ~6 GB/hr
    = 18 MBit/sec if only the background tuner is running (foreground idle) ~8 GB/hr
    = 20 MBit/sec if both tuners are idle ~8.8 GB/hr
    = 22 MBit sec if I disconnect the coax cable... for a few minutes ~9.7 GB/hr

    In the last case, eventually the TiVo will become unhappy and start to search for a signal and complain, then the speeds drop back down again. So 20 MBit/sec is the best sustained rate I've been able to achieve.

    - Tim
     
  14. Dec 6, 2007 #114 of 149
    murryamorris

    murryamorris Member

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    Hmm, it must depend on the wireless setup. I have a wired S3 and a wireless bridge (G) on my HD and it is faster than realtime on MRV (best quality, NOT HD). HD is just about realtime on my transfers this way. Maybe it depends on the wireless setup or the router?
     
  15. Dec 6, 2007 #115 of 149
    bareyb

    bareyb Under Maintenance TCF Club

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    For all intents and purposes my two S3's are wired together via the hub. So that accounts for the speed of my MRV transfers. I can't account for why my wireless transfers were so slow. I'm glad yours are faster though.
     
  16. Dec 7, 2007 #116 of 149
    bkdtv

    bkdtv New Member

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    Wireless throughput will vary somewhat by router and wireless signal strength.

    Some cable providers also apply extra compression, reducing bitrates, and thus the bandwidth necessary to achieve real-time viewing. For example, if you take two users with the same 15Mbps wireless throughput that are MRV'ing a recording from TNTHD, the user on the TWC system with the compressed 13-15Mbps feed will be able to do realtime viewing, whereas the user on a Verizon FiOS system with the full-quality 19Mbps feed will not.
     
  17. Dec 7, 2007 #117 of 149
    TreoFred

    TreoFred New Member

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    SoCal
    FYI, for everybody looking for more speed, I highly recommend trying the Moca bridge route that a lot of Verizon FIOS users are mentioning. I was on the wireless G bandwagon, could not get HD real time between rooms and with all the walls in my house didn't think N would necessarily help (I already had a N router and N laptop to do some tests and I had a huge speed loss due to my house shape.)

    Anyway, I was thinking of trying powerline when I saw the Moca option listed in the FAQ (the motorola NIM-100). I got 3 from Ebay (one from my central switch, one for each of my S3) and it rocks: it get 250 Mbps between each S3 node !

    A couple of notes too since I've seen things written which turned out untrue for me:

    - NIM is only for FIOS. No, they were pretty much for anybody that has Coax.
    - NIM does not work with Cable modem. Wrong, I have my cable modem connected through the same Coax as the NIM with absolutely no problem and no performance issue.
    - NIM needs to be connected to a coax splitter at each node. Wrong in my case. Currently, I have the Coax that use to feed my TiVos and my cable modem going in the NIM cable In, and I added a short coax from the cable out of the NIM back to the cable modem and S3, no issue.
    - Moca signal cannot go through amplifier, the digital signal is too degraded. Again, wrong in my case. I have one NIM on a non amplified split coax strand (the one to the Cable modem) and the other two on the amplified strand. Works perfectly.

    Anyway, I can now watch HD real time and even fast forward through some commercial in a long enough program.

    Just thought it might help people looking for alternatives. :)
     
  18. Dec 9, 2007 #118 of 149
    Oreo2001

    Oreo2001 New Member

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    Sep 17, 2006
    Was wondering why when I transfer a show from my S3 to tivo Hd it takes probably 60-70 minutes for a 30 minute show in Hd while if I transfer the same show from my tivo hd to tivo s3 it takes about 15 minutes. I have a powerline 1.0 setup for my house that states around 30-35 MB/s for each outlet. COuld it be that the larger harddrive of the S3 makes it faster? Thanks for any help.
     
  19. Dec 9, 2007 #119 of 149
    bkdtv

    bkdtv New Member

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    Powerline (Homeplug) 1.0 networks are typically slower than WiFi. In your case, it sounds like your upstream throughput from each location is very different. I suspect you would see a very different result if you swapped the locations of your S3 and TivoHD.

    Be wary of the marketing materials for these adapters. You'll see 54Mbps quoted for 802.11g, but about 33Mbps of that is dedicated to error correction and protocol overhead, leaving less than 21Mbps usable under ideal signal conditions. Similarly, you'll see 200Mbps quoted for Homeplug AV (powerline), but 120-160Mbps of that is dedicated to error correction, depending on line conditions. The same principle applies to other powerline (Homeplug), wireless (802.11g, 802.11n), and phone line (HomePNA) solutions.

    I network my boxes using the Motorola NIM100 used by FiOS and periodically sold on ebay. These boxes operate at up to 270Mbps internally, but about 100Mbps of that is reserved for error correction. Real world network throughput with the NIM100 is 100Mbps -- 88-90Mbps after subtracting TCP overhead -- due to the 100Mbps ethernet jack.
     
  20. Dec 9, 2007 #120 of 149
    HDTiVo

    HDTiVo Not so Senior Member

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    Nov 27, 2002
    These THD transfer speeds are just too darn slow. I hope TiVo can tweak the software to get 60%+ more speed out of TTG and 30%+ out of MRV.

    (on wired 100mb+ networks.)
     

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