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From "Dyre Tjeldvoll (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2050) Manipulating CachedItems could be more efficient
Date Tue, 07 Nov 2006 23:12:59 GMT
    [ http://issues.apache.org/jira/browse/DERBY-2050?page=comments#action_12447963 ] 
            
Dyre Tjeldvoll commented on DERBY-2050:
---------------------------------------


   [[ Old comment, sent from unregistered email on Tue, 07 Nov 2006 16:46:58 +0100 ]]



2 bytes more per CachedItem. If that is REALLY critical, why wasn't
the the six bit fields coded as a byte (rather than an int)?

-- 
dt



> Manipulating CachedItems could be more efficient
> ------------------------------------------------
>
>                 Key: DERBY-2050
>                 URL: http://issues.apache.org/jira/browse/DERBY-2050
>             Project: Derby
>          Issue Type: Improvement
>          Components: Performance
>    Affects Versions: 10.2.1.6
>            Reporter: Dyre Tjeldvoll
>            Priority: Trivial
>             Fix For: 10.3.0.0
>
>
> CachedItem's state is currently recorded in bit fields of an integer variable. Changing
this to 6 boolean member variables reduces cpu usage. 

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