Implement simple write combining for newfs - this is particularly useful for large scsi disks with WCE = 0.  This yields around a 7 times speedup on elapsed newfs time on test disks here.  64k clusters seems to be the sweet spot for scsi disks using our present drivers.
Implement simple write combining for newfs - this is particularly useful
for large scsi disks with WCE = 0.  This yields around a 7 times speedup
on elapsed newfs time on test disks here.  64k clusters seems to be the
sweet spot for scsi disks using our present drivers.

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