failed assertion related to realtime section

Roman Kononov kononov at ftml.net
Wed Aug 5 18:07:50 CDT 2009


Eric Sandeen wrote:
> While realtime should probably work and not oops (!) I'm curious what
> your use-case for realtime is?

In my setup I need mostly sequential read/write access to a number of 
huge files (>1GB) as well as small ones. My 16-disk system, providing 
1GB/s of sequential access data rate, chokes when file fragments are 
smaller than ~32MB. Using 32MB extents of the regular data section 
helps, but fragmentation still develops. I hope (maybe I am wrong) that 
the realtime section with its fixed extents eliminates the fragmentation 
issue.

Roman




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