>
> You can get more dedup information by running 'zdb -DD zp_dd'. This
> should show you how we break things down. Add more 'D' options and get
> even more detail.
>
> - George
OKay .. thank you. Looks like I have piles of numbers here :
# zdb -DDD zp_dd
DDT-sha256-zap-duplicate: 37317 entries, size 342 on disk, 210 in core
bucket allocated referenced
______ ______________________________ ______________________________
refcnt blocks LSIZE PSIZE DSIZE blocks LSIZE PSIZE DSIZE
------ ------ ----- ----- ----- ------ ----- ----- -----
2 18.4K 763M 355M 355M 37.9K 1.52G 727M 727M
4 18.0K 1.16G 1.15G 1.15G 72.4K 4.67G 4.61G 4.61G
8 70 1.47M 849K 849K 657 12.0M 6.78M 6.78M
16 27 39.5K 31.5K 31.5K 535 747K 598K 598K
32 6 4K 4K 4K 276 180K 180K 180K
64 4 9.00K 6.50K 6.50K 340 680K 481K 481K
128 1 2K 1.50K 1.50K 170 340K 255K 255K
256 1 1K 1K 1K 313 313K 313K 313K
512 1 512 512 512 522 261K 261K 261K
Total 36.4K 1.91G 1.50G 1.50G 113K 6.21G 5.33G 5.33G
DDT-sha256-zap-unique: 154826 entries, size 335 on disk, 196 in core
bucket allocated referenced
______ ______________________________ ______________________________
refcnt blocks LSIZE PSIZE DSIZE blocks LSIZE PSIZE DSIZE
------ ------ ----- ----- ----- ------ ----- ----- -----
1 151K 5.61G 2.52G 2.52G 151K 5.61G 2.52G 2.52G
Total 151K 5.61G 2.52G 2.52G 151K 5.61G 2.52G 2.52G
DDT histogram (aggregated over all DDTs):
bucket allocated referenced
______ ______________________________ ______________________________
refcnt blocks LSIZE PSIZE DSIZE blocks LSIZE PSIZE DSIZE
------ ------ ----- ----- ----- ------ ----- ----- -----
1 151K 5.61G 2.52G 2.52G 151K 5.61G 2.52G 2.52G
2 18.4K 763M 355M 355M 37.9K 1.52G 727M 727M
4 18.0K 1.16G 1.15G 1.15G 72.4K 4.67G 4.61G 4.61G
8 70 1.47M 849K 849K 657 12.0M 6.78M 6.78M
16 27 39.5K 31.5K 31.5K 535 747K 598K 598K
32 6 4K 4K 4K 276 180K 180K 180K
64 4 9.00K 6.50K 6.50K 340 680K 481K 481K
128 1 2K 1.50K 1.50K 170 340K 255K 255K
256 1 1K 1K 1K 313 313K 313K 313K
512 1 512 512 512 522 261K 261K 261K
Total 188K 7.52G 4.01G 4.01G 264K 11.8G 7.85G 7.85G
dedup = 1.96, compress = 1.51, copies = 1.00, dedup * compress / copies =
2.95
#
I have no idea what any of that means, yet :-)
--
Dennis Clarke
dcla...@opensolaris.ca <- Email related to the open source Solaris
dcla...@blastwave.org <- Email related to open source for Solaris
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