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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "BookKeeperPerfPage" by FlavioJunqueira
Date Wed, 19 May 2010 12:47:03 GMT
Dear Wiki user,

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

The "BookKeeperPerfPage" page has been changed by FlavioJunqueira.
http://wiki.apache.org/hadoop/BookKeeperPerfPage?action=diff&rev1=9&rev2=10

--------------------------------------------------

  = BookKeeper Performance Figures =
  
- The numbers we present in this page have been obtained in a cluster of machines with the
following characteristics: one Xeon dual-core 2.1GHz processor, 4GB of RAM, gigabit ethernet,
and two SATA hard drives.
+ The numbers we present in this page have been obtained in a cluster of machines with the
following characteristics: one Xeon dual-core 2.1GHz processor, 4GB of RAM, gigabit ethernet,
and two SATA hard drives. Each one of the values below correspond to the average over 10 different
runs, and in each run a client writes 400k times.
  
  == Single-client experiments ==
  
@@ -22, +22 @@

  
  == Multi-client experiments ==
  
- 16 clients writing to bookies simultaneously.
+ 16 clients writing to bookies simultaneously. The values displayed correspond to aggregate
throughput over all 16 clients.
  
  || || 128 bytes per entry written || 1024 bytes written per entry ||
  || 4-2 || 196.61 Kops/s || 76.17 Kops/s ||
  || 6-2 || 232.44 Kops/s || 80.75 Kops/s ||
  || 4-3 || 128.97 Kops/s || 53.25 Kops/s ||
- || 6-3 || 146.72 Kops/s ||  Kops/s ||
+ || 6-3 || 146.72 Kops/s || 56.22 Kops/s ||
  

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