Brad Campbell wrote:
G'day all,
I have a box here.. it has a 2Ghz processor and 1.5GB of ram. It runs
the entire OS over NFS and it's sole purpose in life is to run 15 SATA
drives in a Raid-6 with ext3 on it, and share that over NFS. Most of
that ram is sitting completely idle and thus I thought a logical thing
to do would be to stuff as much of it as possible into the MD subsystem
to help it cache..
Are there any limits to the values living in /sys/block/md* and what
might be the tradeoffs (if any) to using what would normally be thought
stupid amounts of ram for these knobs ?
This box does not get written to often, it's just a media streamer
mostly.. but if I am writing to it then it chokes just providing a 1Mb
stream over the network currently. (It's on a 2.6.15-git11 kernel
currently but I'm just upgrading to 2.6.16 now)
Scratch that.. the limit appears to be 32768 and that works fine..
Google search results increase in accuracy proportionally with the elapsed time of a list posting
with the question.. :\
Brad
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