discuss-gnuradio
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] NetBSD USRP USB changes committed to master repos


From: Greg Troxel
Subject: Re: [Discuss-gnuradio] NetBSD USRP USB changes committed to master repository
Date: Wed, 26 Jul 2006 09:49:10 -0400
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (berkeley-unix)

  barossa: {29} ./test_usrp_standard_rx
  ....
  xfered 1.34e+08 bytes in 4.2 seconds.  3.197e+07 bytes/sec.  cpu time = 
  0.04173
  noverruns = 41

  barossa: {30} ./test_usrp_standard_tx
  ...
  usb_control_msg failed: error sending control message: Input/output error
  xfered 1.34e+08 bytes in 4.64 seconds.  2.894e+07 bytes/sec.  cpu time = 0.491
  41 underruns

So this doesn't work.  Could you try with decimation 10 (or 12, until
you get only a few underruns)?

  Interestingly, the 2MB/sec test fails although the faster speeds are ok.

We've noticed that too.  Note that the 32 MB/s speed is really 16 MB/s
in each direction.

It would be cool if benchmark_usrp.py tried decimation 14, 12, and 10
also, rather than stopping at 16 (and interpolation values with those
rates).

-- 
    Greg Troxel <address@hidden>

Attachment: pgpxJYtGE2dCQ.pgp
Description: PGP signature


reply via email to

[Prev in Thread] Current Thread [Next in Thread]