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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "ZooKeeper/ServiceLatencyOverview" by PatrickHunt
Date Tue, 27 Oct 2009 06:06:34 GMT
Dear Wiki user,

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

The "ZooKeeper/ServiceLatencyOverview" page has been changed by PatrickHunt.
http://wiki.apache.org/hadoop/ZooKeeper/ServiceLatencyOverview?action=diff&rev1=8&rev2=9

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

  host40: 0inputs+0outputs (2major+73972minor)pagefaults 0swaps
  }}}
  
- === 1 Core - 10 Client ===
+ === 2 Core - 10 Client ===
  
  1.1 million operations against the server with elapsed time of 58 seconds
  
@@ -157, +157 @@

  host49: 0inputs+0outputs (2major+71633minor)pagefaults 0swaps
  }}}
  
- === 1 Core - 20 Client ===
+ === 2 Core - 20 Client ===
  
  2.2 million operations against the server with elapsed time of 150 seconds
  
@@ -176, +176 @@

  host46: 0inputs+0outputs (0major+73188minor)pagefaults 0swaps
  }}}
  
+ === 4 Core - 1 Client ===
+ 
+ 110k operations against the server with elapsed time of 18 seconds
+ 
+ {{{
+ host40: Testing latencies on server host60:2181 using asynchronous calls
+ host40: created   10000 permanent znodes  in   1628 ms (0.162839 ms/op 6141.034732/sec)
+ host40: set       10000           znodes  in   1583 ms (0.158326 ms/op 6316.066553/sec)
+ host40: get       10000           znodes  in   1655 ms (0.165526 ms/op 6041.344054/sec)
+ host40: deleted   10000 permanent znodes  in   1463 ms (0.146302 ms/op 6835.186174/sec)
+ host40: created   10000 ephemeral znodes  in   1591 ms (0.159110 ms/op 6284.971481/sec)
+ host40: watched   50000           znodes  in   9426 ms (0.188539 ms/op 5303.937335/sec)
+ host40: deleted   10000 ephemeral znodes  in   2254 ms (0.225496 ms/op 4434.673973/sec)
+ host40: notif     50000           watches in      0 ms (included in prior)
+ host40: Latency test complete
+ host40: 17.03user 8.25system 0:20.14elapsed 125%CPU (0avgtext+0avgdata 0maxresident)k
+ host40: 0inputs+0outputs (0major+72575minor)pagefaults 0swaps
+ }}}
+ 
+ === 4 Core - 10 Client ===
+ 
+ 1.1 million operations against the server with elapsed time of 58 seconds
+ 
+ {{{
+ host43: Testing latencies on server host60:2181 using asynchronous calls
+ host43: created   10000 permanent znodes  in   5421 ms (0.542148 ms/op 1844.515451/sec)
+ host43: set       10000           znodes  in   5050 ms (0.505025 ms/op 1980.098852/sec)
+ host43: get       10000           znodes  in   2831 ms (0.283189 ms/op 3531.208094/sec)
+ host43: deleted   10000 permanent znodes  in   3682 ms (0.368277 ms/op 2715.345120/sec)
+ host43: created   10000 ephemeral znodes  in   6300 ms (0.630003 ms/op 1587.294271/sec)
+ host43: watched   50000           znodes  in  13783 ms (0.275669 ms/op 3627.543622/sec)
+ host43: deleted   10000 ephemeral znodes  in   5911 ms (0.591175 ms/op 1691.546474/sec)
+ host43: notif     50000           watches in      0 ms (included in prior)
+ host43: Latency test complete
+ host43: 16.40user 6.93system 0:43.63elapsed 53%CPU (0avgtext+0avgdata 0maxresident)k
+ host43: 0inputs+0outputs (2major+71052minor)pagefaults 0swaps
+ }}}
+ 
+ === 4 Core - 20 Client ===
+ 
+ 2.2 million operations against the server with elapsed time of 150 seconds
+ 
+ {{{
+ host65: Testing latencies on server host60:2181 using asynchronous calls
+ host65: created   10000 permanent znodes  in  11458 ms (1.145814 ms/op 872.742079/sec)
+ host65: set       10000           znodes  in   7248 ms (0.724857 ms/op 1379.582825/sec)
+ host65: get       10000           znodes  in   8641 ms (0.864138 ms/op 1157.222181/sec)
+ host65: deleted   10000 permanent znodes  in  11239 ms (1.123901 ms/op 889.758416/sec)
+ host65: created   10000 ephemeral znodes  in  13059 ms (1.305911 ms/op 765.748972/sec)
+ host65: watched   50000           znodes  in  32384 ms (0.647690 ms/op 1543.949402/sec)
+ host65: deleted   10000 ephemeral znodes  in  10303 ms (1.030382 ms/op 970.514240/sec)
+ host65: notif     50000           watches in      0 ms (included in prior)
+ host65: Latency test complete
+ host65: 14.64user 5.45system 1:35.02elapsed 21%CPU (0avgtext+0avgdata 0maxresident)k
+ host65: 0inputs+0outputs (0major+75539minor)pagefaults 0swaps
+ }}}
+ 

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