<div dir="ltr">thank you Christof for the help and cyrille for the excellent work, breaking it to chunks did the trick!</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 10, 2020 at 2:01 PM Christof Ressi <<a href="mailto:info@christofressi.com">info@christofressi.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
<div>
<p>> when you suggest to spread the op across several dsp ticks
you mean for example not to read the buffer in one go but to
break the read to chunks? <br>
</p>
<p>Yes.<br>
</p>
<p>> also, is there a way to "defer low" different tasks in pd? <br>
</p>
<p>Not yet, but I've proposed adding such functionality to Pd's API,
so it can be used by Pd itself (e.g. for [soundfiler] and also by
externals. I already made a working async task queue (for one of
my externals), I basically just have to port it from C++ to C and
make a PR, but I didn't have time yet :-(<br>
</p>
<p>Christof<br>
</p>
<div>On 10.02.2020 13:04, iftah gabbai
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">thanks Christof, unfortunately increasing the delay
is not an option for me,
<div>when you suggest to spread the op across several dsp ticks
you mean for example not to read the buffer in one go but to
break the read to chunks? </div>
<div>also, is there a way to "defer low" different tasks in pd? </div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Feb 10, 2020 at 12:53
PM Christof Ressi <<a href="mailto:info@christofressi.com" target="_blank">info@christofressi.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
<div>
<p>> when i setmem /dumpmem on a 5760000 samples size
buffer</p>
<p>Are you trying to do this in a single DSP tick? This
would create a CPU spike and lead to audio dropouts,
depending on the value of "delay" in the audio settings. <br>
</p>
<p>You can either</p>
<p>a) increase "delay" -> more latency -> more chance
to "absorb" CPU spikes, or</p>
<p>b) spread the operation across several DSP ticks.</p>
<p>Christof<br>
</p>
<div>On 10.02.2020 12:38, iftah gabbai wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">so i tested it with linux and it works
great, my only problem right now is that i get an
audible glitch when i setmem /dumpmem on a 5760000
samples size buffer, i tried breaking the setting /
dumping to smaller chunks but it only got worse, is
there any workaround?</div>
<div dir="ltr"><br>
</div>
<div>thanks!</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Feb 1, 2020 at
11:44 AM cyrille henry <<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">yes,
I did write that. But Miller implemented a binary
transfer from pd to pd~ so the native solution must be
lot's more efficient now. I did not test if shmem is
still faster.<br>
<br>
Yes, using shmem_send~ and shmem_receive~ will add 1
more block latency on top of pd~ latency.<br>
<br>
cheers<br>
<br>
<br>
Le 01/02/2020 à 10:32, iftah gabbai a écrit :<br>
> @cyrille, i have another question if i may, i saw
somewhere in the list that you write that streaming
audio from pd to a subprocess with shmem is much more
efficient in terms of cpu usage, is it still the case?
also if i understand correctly from the docs i will
then have latency of one block size + fifo right?<br>
> <br>
> On Sat 1. Feb 2020 at 10:29, iftah gabbai <<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>
wrote:<br>
> <br>
> @chris, thank you for that, very good piece
of info!<br>
> <br>
> On Fri 31. Jan 2020 at 20:03, cyrille henry
<<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a> <mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>
wrote:<br>
> <br>
> <br>
> <br>
> Le 31/01/2020 à 18:30, iftah gabbai a
écrit :<br>
> > so it is confirmed to work on
linux? if so than great :)<br>
> it's working on my computer!<br>
> c<br>
> <br>
> <br>
> ><br>
> > On Fri 31. Jan 2020 at 13:58,
cyrille henry <<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>>
wrote:<br>
> ><br>
> > I don't know why it fail on
mac. You can try to split in smaller table, like you
suggested.<br>
> > But you should also test it on
linux first since it's your main target.<br>
> ><br>
> > c<br>
> ><br>
> > Le 30/01/2020 à 19:55, iftah
gabbai a écrit :<br>
> > > im building on mac os
10.12 and intending to run on linux(arm), i haven’t
tested on linux, the problems im having are on mac,<br>
> > ><br>
> > > thanks!<br>
> > ><br>
> > > On Thu 30. Jan 2020 at
17:47, cyrille henry <<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>>>
wrote:<br>
> > ><br>
> > > what is your OS?<br>
> > ><br>
> > > Le 30/01/2020 à
17:10, iftah gabbai a écrit :<br>
> > > > hey C, i have
16gb of ram, and if i did not completely messed up my
calcs i tried to allocate 2 min of 96khz (11.520.000)<br>
> > > ><br>
> > > > thanks again!<br>
> > > ><br>
> > > > On Thu 30. Jan
2020 at 17:06, cyrille henry <<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a> <mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
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<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>
<mailto:<a href="mailto:ch@chnry.net" target="_blank">ch@chnry.net</a>>>>>>
wrote:<br>
> > > ><br>
> > > > hello,<br>
> > > ><br>
> > > > Do you have
enough free memory on your computer?<br>
> > > > I just test
on y computer, I can reproduce this error as soon as I
ask an allocation bigger than the available memory on
my hardware.<br>
> > > > (between
500 000 000 and 1 000 000 000 points)<br>
> > > ><br>
> > > > cheers<br>
> > > > Cyrille<br>
> > > ><br>
> > > > Le
30/01/2020 à 12:11, iftah gabbai a écrit :<br>
> > > > >
...perhaps i should elaborate, im trying to dump an
array in the size of 11 520 000(2 min of 96 khz audio)
to another instance of PD, is it possible at all or do
i have to break it to smaller chunks?<br>
> > > > ><br>
> > > > > On
Thu, Jan 30, 2020 at 12:01 PM iftah gabbai <<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>>>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>
<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>
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<mailto:<a href="mailto:ift.gab@gmail.com" target="_blank">ift.gab@gmail.com</a>>>>>>>
wrote:<br>
> > > > ><br>
> > > > >
hello all, ive been experimenting with shmem (the
latest one i could find in deken), it works fine as
long as i use very small arrays, as soon as i try to
use bigger arrays ( havent checked where the
breakpoint is but more than approx 400000) it doesnt
and it returns "could not allocate shmem memory Id"<br>
> > > > ><br>
> > > > > i
wonder if im doing something wrong or if its a known
thing?<br>
> > > > ><br>
> > > > ><br>
> > > > >
thanks!<br>
> > > > ><br>
> > > > ><br>
> > > > >
_______________________________________________<br>
> > > > > <a href="mailto:Pd-list@lists.iem.at" target="_blank">Pd-list@lists.iem.at</a>
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