[PD] shmem and bigger buffer size

[iftah gabbai]

@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?

On Sat 1. Feb 2020 at 10:29, iftah gabbai <ift.gab at gmail.com> wrote:

> @chris, thank you for that, very good piece of info!
>
> On Fri 31. Jan 2020 at 20:03, cyrille henry <ch at chnry.net> wrote:
>
>>
>>
>> Le 31/01/2020 à 18:30, iftah gabbai a écrit :
>> > so it is confirmed to work on linux? if so than great :)
>> it's working on my computer!
>> c
>>
>>
>> >
>> > On Fri 31. Jan 2020 at 13:58, cyrille henry <ch at chnry.net <mailto:
>> ch at chnry.net>> wrote:
>> >
>> >     I don't know why it fail on mac. You can try to split in smaller
>> table, like you suggested.
>> >     But you should also test it on linux first since it's your main
>> target.
>> >
>> >     c
>> >
>> >     Le 30/01/2020 à 19:55, iftah gabbai a écrit :
>> >      > 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,
>> >      >
>> >      > thanks!
>> >      >
>> >      > On Thu 30. Jan 2020 at 17:47, cyrille henry <ch at chnry.net
>> <mailto:ch at chnry.net> <mailto:ch at chnry.net <mailto:ch at chnry.net>>> wrote:
>> >      >
>> >      >     what is your OS?
>> >      >
>> >      >     Le 30/01/2020 à 17:10, iftah gabbai a écrit :
>> >      >      > 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)
>> >      >      >
>> >      >      > thanks again!
>> >      >      >
>> >      >      > On Thu 30. Jan 2020 at 17:06, cyrille henry <ch at chnry.net
>> <mailto:ch at chnry.net> <mailto:ch at chnry.net <mailto:ch at chnry.net>>
>> <mailto:ch at chnry.net <mailto:ch at chnry.net> <mailto:ch at chnry.net <mailto:
>> ch at chnry.net>>>> wrote:
>> >      >      >
>> >      >      >     hello,
>> >      >      >
>> >      >      >     Do you have enough free memory on your computer?
>> >      >      >     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.
>> >      >      >     (between 500 000 000 and 1 000 000 000 points)
>> >      >      >
>> >      >      >     cheers
>> >      >      >     Cyrille
>> >      >      >
>> >      >      >     Le 30/01/2020 à 12:11, iftah gabbai a écrit :
>> >      >      >      > ...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?
>> >      >      >      >
>> >      >      >      > On Thu, Jan 30, 2020 at 12:01 PM iftah gabbai <
>> ift.gab at gmail.com <mailto:ift.gab at gmail.com> <mailto:ift.gab at gmail.com
>> <mailto:ift.gab at gmail.com>> <mailto:ift.gab at gmail.com <mailto:
>> ift.gab at gmail.com> <mailto:ift.gab at gmail.com <mailto:ift.gab at gmail.com>>>
>> <mailto:ift.gab at gmail.com <mailto:ift.gab at gmail.com> <mailto:
>> ift.gab at gmail.com <mailto:ift.gab at gmail.com>> <mailto:ift.gab at gmail.com
>> <mailto:ift.gab at gmail.com> <mailto:ift.gab at gmail.com <mailto:
>> ift.gab at gmail.com>>>>> wrote:
>> >      >      >      >
>> >      >      >      >     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"
>> >      >      >      >
>> >      >      >      >     i wonder if im doing something wrong or if its
>> a known thing?
>> >      >      >      >
>> >      >      >      >
>> >      >      >      >     thanks!
>> >      >      >      >
>> >      >      >      >
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