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David Basden davidb-sdr at rcpt.toOn Wed, May 15, 2013 at 08:44:15PM +0200, Favati wrote: > Il 13/05/2013 19:07, Favati ha scritto: > >It SEEMS that lowering the buffer to 16 (option -b 16) solved the > >problem...(it's up since 30mins atm). > > > >I'll let you know... > > > > > > > > > no way...re-happened today... > > I've no more ideas :( > Run 'vmstat 1' in a different terminal on the RPi while running stuff, and paste the first dozen lines? (You can just CTRL-C vmstat after this) I ran rtl-tcp a while ago on the RPi and it was really pushing the limits of the IO bandwidth and CPU, but there has been a lot of optimisation in the RPi stack kernels etc since. Using a USB network interface would just push the RPi's limited USB IO even harder. Reducing the samplerate for rtl-tcp might help a bit if you aren't looking at a wideband signal. David