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On 12/21/06, Erik Mouw <mouw@nl.linux.org> 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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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