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Bug ID 6801507
Synopsis ZFS read aggregation should not mind the gap
State 10-Fix Delivered (Fix available in build)
Category:Subcategory kernel:zfs
Keywords
Responsible Engineer Jeff Bonwick
Reported Against
Duplicate Of
Introduced In
Commit to Fix snv_109
Fixed In snv_109
Release Fixed solaris_nevada(snv_109) , solaris_10u8(s10u8_01) (Bug ID:2176284)
Related Bugs 6801984
Submit Date 5-February-2009
Last Update Date 25-February-2009
Description 
To reduce IOPs, ZFS aggregates small adjacent I/Os into single large I/Os.
In the case of reads we can do better:  if the I/Os are not adjacent, but
very close, we can aggregate across the gap.  This will help RAID-Z
performance, which is quite gappy on reads due to not reading parity.
Work Around 
N/A
Comments 
N/A