Re: [FFmpeg-devel] Issue - Error Due to higher number of threads

[Srihari Sridhar <gshari9918@gmail.com>]

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Hi,

Thanks for the reply. I checked the memory usage while building ffmpeg with
64 threads. The machine I tested has 128 GB ram. While I tested it I found
that maximum memory utilized by the build of ffmpeg was 17GB.  Still the
build throws up error semaphore or child process wait (Error 87 : The
parameter is incorrect). Hence could you check on the same please. I have
attached screenshots of memory utilized from the task manager.

Regards,
S Srihari

On Thu, 12 May 2022 at 16:45, Timo Rothenpieler <timo@rothenpieler.org>
wrote:

> On 12.05.2022 04:22, Srihari Sridhar wrote:
> > Hi,
> >
> > I was building ffmpeg through windows. While I was able to successfully
> > able to build for smaller number of threads, for larger number of
> threads I
> > faced an issue
> >
> > The commands I used were
> > bash ./configure --arch=x86 --target-os=mingw32 --disable-x86asm
> > make -j <no_of_Threads>
> >
> > While building with 4 Threads the build was successful
> > Screenshot:
> > [image: image.png]
> >
> > While building with 64 threads, I faced the following error,
> > Screenshot :
> > [image: image.png]
> >   semaphore or child process wait (Error 87 : The parameter is incorrect)
>
> Please don't use images for plain text. It's hard to access and barely
> legible.
>
> > Please could you check this issue. Thanks
>
> You probably just ran out of RAM or something. Highly unlikely that this
> is an issue with ffmpeg.
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