Hi Marcus, I switched to performance mode and got the same results. I'm running LDXE on this computer, so I changed it by editing /etc/init.d/cpufrequtils and setting GOVERNOR="performance", then using sysv-rc-conf to deactivate on-demand.
On Mon, Oct 30, 2017 at 3:01 PM, Marcus D. Leech <mle...@ripnet.com> wrote: > On 10/30/2017 02:54 PM, Oliver Wayne wrote: > > When I run perf top, I get libuhd.so.3.11 and libc-2.23.so taking up > about 15% and 21% respectively, rising over time. This is at 10Msps. any > thoughts? I've tried a few other things like setting otw_format=sc12 and > setting the frame size higher, but I haven't had any success. > > Could you try running your CPU in "performance" mode, rather than the > power-saving 1.6GHz mode that it is apparently running at? > > > > On Tue, Oct 24, 2017 at 3:42 PM, <mle...@ripnet.com> wrote: > >> You could perhaps do a "perf top" and see what's consuming time. >> >> The Gnu Radio signal source blocks are not screamingly efficient, so it >> may be that they just aren't keeping up, although at 4Msps, you wouldn't >> expect them to be too stressed. >> >> >> >> >> >> >> On 2017-10-24 15:12, Oliver Wayne via USRP-users wrote: >> >> Apologies for not forwarding to the full list. I'm attempting to run the >> attached flowgraph with the following hardware, but getting underflows. >> >> I have 8 GB of RAM, so don't think that's a problem. Running lspci | grep >> -i usb, I get the following output >> >> 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset >> Family USB Enhanced Host Controller #2 (rev 04) >> 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset >> Family USB Enhanced Host Controller #1 (rev 04) >> >> I've attached a copy of cpuinfo. >> >> Thanks! >> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> > >
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