[jira] [Commented] (LUCENE-4322) Can we make oal.util.packed.BulkOperation* smaller?

Fri, 24 Aug 2012 10:48:01 -0700

I swept the full Wikipedia (05/12 export) index to count how many blocks we see for each bitsPerValue:

 0 bits:  0.8% blocks=540300
 1 bits:  0.0% blocks=38
 2 bits:  6.9% blocks=4614597
 3 bits: 13.5% blocks=9069600
 4 bits:  6.7% blocks=4480753
 5 bits:  2.8% blocks=1875920
 6 bits:  2.8% blocks=1867222
 7 bits:  8.0% blocks=5394210
 8 bits: 39.4% blocks=26435409
 9 bits:  3.4% blocks=2271263
10 bits:  3.2% blocks=2114455
11 bits:  2.8% blocks=1910650
12 bits:  2.5% blocks=1670494
13 bits:  2.1% blocks=1383284
14 bits:  1.6% blocks=1091507
15 bits:  1.3% blocks=855881
16 bits:  1.0% blocks=643360
17 bits:  0.6% blocks=421664
18 bits:  0.4% blocks=256929
19 bits:  0.2% blocks=132227
20 bits:  0.0% blocks=31852
21 bits:  0.0% blocks=11753
22 bits:  0.0% blocks=7176
23 bits:  0.0% blocks=1168



The 0 bits case means all values are the same (eg all 1s).
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
--------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]

Reply via email to