In general (no experience or suggestions for ARM processors), for video
streaming:
- preallocate space for the files when writing, see xfsctl(3) and
XFS_IOC_RESVSP
- use direct I/O, the larger the better. ie a MB or more at a time,
but at least ensure the direct I/O requests are aligned on page or
filesystem block boundaries, whichever is larger
- use asynchronous I/O or multiple threads to keep the disks busy
David
nagesh kollu wrote:
> hi,,
> i'm new to xfs ..i want to know the performance details of xfs..
> how much time it will take to write /read ...can anyone done this on ARM
> processor...the block size is 2^n only in xfs ..but for video streaming the
> incoming packet is 188 bytes .the sector size is 512 ...so the i/o buffer
> size is 188*512 ...how can we do this in xfs....cany anyone send the xfs
> performance details..
>
>
> thanx!
> nagesh.k
>
>
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--
David Chatterton
XFS Engineering Manager
SGI Australia
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