On 12/21/06, Erik Mouw <[email protected]> wrote:
Bursty video traffic is really an application that could take advantage
from the kernel buffering. Unless you want to reinvent the wheel and do
the buffering yourself (it is possible though, I've done it on IRIX).
But in my test O_DIRECT gave a slight better performance. Also the CPU
usage decreased.
BTW, why are you so keen on smooth-at-the-microlevel writeout? With
real time video applications it's only important not to drop frames.
How fast those frames will go to the disk isn't really an issue, as
long as you don't overflow the intermediate buffer.
Actually i dont require smooth-at-the-microlevel writeout but the
timing bumps are overflowing the intermediate buffers . I was just
wondering if i could decrease the 20ms bumps to 3 ms as in other
writes.
Erik
--
They're all fools. Don't worry. Darwin may be slow, but he'll
eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
--
---------------------------------------------------------------
regards
Manish Regmi
---------------------------------------------------------------
UNIX without a C Compiler is like eating Spaghetti with your mouth
sewn shut. It just doesn't make sense.
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