Hi Marcus , Sorry i forgot to attach the images in last second .
On Wed, Sep 6, 2017 at 3:48 PM, mohammad nejati <tufa...@gmail.com> wrote: > Hi , > > I recently noticed that all modulator blocks like qam psk gmsk ... have one > similar problem , they consume high percent of CPU even when i connect a > throttle to output of those . they consume a certain amount of CPU time > (17%) and it doesn't change when i set throttle to 1k 10k 100k or even 10ms > in the other word throttle in output doesn't work at all . PLS see first > attached pic . > > After digging around in source codes i noticed a common problem of them are > last stage of modulators when connected to pfb_arb_resampler_ccf , i tested > Polyphase Arbitary Resampler just alone and it have exactly similar problem > . PLS see second attached pic . > > It doesn't make any difference if i remove the throttle block and connect > flow graph to a sink hardware for limiting sample rate it eat cpu in any > case . some thing is wrong with Polyphase Arbitary Resampler block . > > Cheers .
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