Peter A. Friend wrote:
I changed that value to 8k, and based on the truss output from an
index run, it is working. Haven't gotten much beyond that to see if
it causes problems elsewhere. The value also needs to be altered on
the read end of things. Ideally, this will be made settable via a
system property.
Has anyone tried to tweak this on a RAID array on XFS? Its confusing to figure
out the ideal read size.
My performance benchmarks didn't show any benefit to setting this variable
higher but I'm worried this is due to caching.
I tried to flush the caches by creating a 5G file and then cating that to
/dev/null but I have no way to verify that this actually works.
I just made the BUFFER_SIZE veriables non-final so that I can set them at any time.
Kevin
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