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From Apache Wiki <wikidi...@apache.org>
Subject [Db-derby Wiki] Update of "Derby1961ResourceUsage" by KnutAndersHatlen
Date Wed, 25 Oct 2006 13:25:36 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Db-derby Wiki" for change notification.

The following page has been changed by KnutAndersHatlen:
http://wiki.apache.org/db-derby/Derby1961ResourceUsage

------------------------------------------------------------------------------
  || Logging             ||<style="text-align: center;">  5.5E-6    ||<style="text-align:
center;">    0.30     ||
  || Data store          ||<style="text-align: center;">  0.06    ||<style="text-align:
center;">   6.7E-5 ||
  
- More to come...
+ ==== Monitors and synchronization ====
  
+ The next table shows the number of times the test clients tried to
+ enter a contended monitor per transaction (as reported by the
+ `hotspot:::monitor-contended-enter` probe in DTrace), and the number
+ of times the clients slept on a synchronization object per transaction
+ (as reported by the `sched:::sleep` probe in DTrace).
+ 
+ Platform: Java SE 6.0 - build 1.6.0-rc-b103, Solaris 10, dual CPU.
+ 
+ || '''Module'''        ||<-2> '''Single-record select (10 clients)''' ||<-2>
'''Single-record update (20 clients)''' ||<-2> '''Join (4 clients)''' ||
+ || ||<style="text-align: center;"> '''Contention''' ||<style="text-align: center;">
'''Sleep''' ||<style="text-align: center;"> '''Contention''' ||<style="text-align:
center;"> '''Sleep''' ||<style="text-align: center;"> '''Contention''' ||<style="text-align:
center;"> '''Sleep'''||
+ || Network server      || || 2.0 || || 2.0 || || 2.0 ||
+ || JDBC                || || || || || || ||
+ || Execution           || || || || || || ||
+ || Access              || || || 0.1 || || || ||
+ || Lock manager        || 0.3 || 1.0 || 0.5 || 0.7 || 2.7 || 6.8 ||
+ || Buffer manager      || 0.1 || || 0.1 || || 0.1 || 0.1 ||
+ || Logging             || || || 0.2 || 1.9 || || ||
+ || Data store          || || || || || || ||
+ || Transaction control || 0.1 || || 0.1 || || || ||
+ || Unknown             || || || || || || 0.8 ||
+ 

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