Usually, if I untar pkgsrc on an LFS partition, at the end of the job
CPU usage goes through the roof.

Well, today I thought I'd see what happened when I set
vfs.sync.metadelay=0 (using BUFQ_PRIOCSCAN).

If I do this, I no longer have the problem, and performance doesn't
seem to suffer much.  Obviously, I don't have to use zero,but if
anyone could enlighten me as to a more rational way to tune vfs.sync
parameters for LFS (perhaps along with vfs.lfs.pagetrip), I'd
appreciate it.


Thanks,

--Blair

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