[ivtv-users] Memory Usage

[Steve Gunther]

I am modifying my ivtv settings to increase buffer size.  I am using the
following string;

options ivtv enc_yuv_buffers=8 enc_mpg_buffers=48 enc_vbi_buffers=16
enc_pcm_buffers=960

So by my math 8MB YUV + 48M MPG + 16M VBI + 960k = ~73M per tuner.

I have four tuners...

After boot I;

sudo rmmod ivtv

My memory usage is at 435672k used.  After I;

sudo modprobe ivtv

My memory usage is 1029156k used, for a difference of 593484k or ~148M per
card.


As far as the modino states the defaults should be So by my math 2MB YUV +
4M MPG + 1M VBI + 320k = ~7M per tuner.

With no modifier string my memory usage is 16M per card.

Any idea why my memory usage would be approximately double the assigned
buffer size?

-Steve
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ivtvdriver.org/pipermail/ivtv-users/attachments/20091105/6af16e89/attachment.htm>