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Posted to solr-user@lucene.apache.org by Varun Thacker <va...@gmail.com> on 2012/12/04 07:07:18 UTC

Doubts in size-estimator-lucene-solr.xls

I have a couple of doubts as to how the memory calculation on how a couple
of caches are working:

1. The value of filterCache Max Size in C30
This is the formula:
=(1*B30*B10)+(B30*F14*8)

where B30 is the value of filter cache max size (512)
B10 is the total number of documents
and f14 - is Cache Key Average Size (20 bytes)

I'm confused as to what the value  in (1*B30*B10) represents. Why are we
multiplying the filter cache max size by the Total number of documents?

2. The value of queryResultCache Max SIze
This is the formula:
(B29*2*32*B31)+(F16*8)*B31
Why are we multiplying (B29*B31) by 2*32?




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Regards,
Varun Thacker
http://www.vthacker.in/