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Swingbench SwingBench can now be started to produce a transaction load and simulate an order-entry system and to test the replication. 

Note

...

Start a new

...

terminal session

...

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ssh -p10022 oracle@192.168.1.197
Note

This uses port forwarding which was setup when Virtual Box was configured (02 - Rep Attack 11g XE Virtual Machines).

192.168.1.197 is the IP address of the host machine (laptop). Use ifconfig or ipconfig to identify what the local IP address is of the host machine.

2. Start charbench which is the character based version of swingbench.

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/u01

on the source server, as oracle.

  1. In the $HOME/replicate directory, execute the run_swingbench.bash script to start the charbench utility which is the character based version of SwingBench.
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[oracle@source ~]$ cd $HOME/replicate
[oracle@source replicate]$ ./run_swingbench.bash

The command that will be executed by the script is a very simple one... you can do this on the command line instead of running the script. 

#/bin/bash

# -cs <connect_string>
# -u <schema_user>
# -p <schema_user_password>
# -uc <simulated_user_count>
# -min <min_transaction_think_time_in_milliseconds>
# -max <max_transaction_think_time_in_milliseconds>
# -rt <runtime_hh:mi>
# -a run automatically
# -v display run statistics

/u01/app/oracle/swingbench/bin/charbench

...

-cs

...

//source

...

/

...

XE -u

...

repoe -p

...

repoe -uc

...

10

...

-min

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5 -max

...

200

...

-rt

...

0:10

...

-a

...

-v

The output will be similar to the following and will run for 10 minutes. A total number of 10 users will be simulated.

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Author  :	 Dominic Giles
Version :	 2.5.0.932
Results will be written to results.xml.
Time		Users	TPM	TPS
8:39:02 PM	0	0	0
8:39:03 PM	0	0	0
8:39:04 PM	0	0	0
8:39:05 PM	2	0	0
8:39:06 PM	10	10	10
8:39:07 PM	10	23	13
<<output continues>>
Tip

If you want to stop SwingBench before the 10 minutes is up, just hit Ctrl C in the terminal window where it's running to interrupt it.

While the SwingBench is running - keep an eye on your dbvisit console (The dbvisit console should still be running. if not restart the dbvisit console on the source server - cd $HOME/dbvrep_XE  and ./start-console.sh )

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Put the above command line to run swingbench in a script and call it run_swinbench.sh so that you do not have to remember the full command.
Note

It is easy to change the parameters of swingbench to change the load and the time that it runs.

The parameters are:

  • uc. How many users to simulate
  • rt. Run time. How long to run the simulation for
  • min. Transaction think time minimum
  • max. Transaction think time maximum

All command line options are listed here

Tip

 

3. Optional. Swingbench is highly configurable. The load on the system can be easily increased. In this example, the number of users is set to 40 and the min and max delay is shortened. As a result the TPS peaks at over 400 transactions per second. 

Note

Your laptop has to be powerful enough to handle this load and a large number of archived redo logs will be generated that may fill up the disk space.


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/u01/app/oracle/swingbench/bin/charbench -cs //source-int/orclXE -u oerepoe -p oerepoe -uc 40 -min 5 -max 15 -rt 0:10 -a -v users,tpm,tps
Author  :	 Dominic Giles
Version :	 2.5.0.932
Results will be written to results.xml.
Time		Users	TPM	TPS
20:53:05	[0/40]	0	0
20:53:06	[0/40]	0	0
20:53:07	[0/40]	0	0
20:53:08	[0/40]	0	0
20:53:10	[31/40]	0	0
20:53:13	[40/40]	440	440
20:53:14	[40/40]	478	38
20:53:18	[40/40]	913	435
20:53:19	[40/40]	967	54
20:53:22	[40/40]	1410	443
20:53:23	[40/40]	1446	36
20:53:25	[40/40]	1745	299
20:53:26	[40/40]	1885	140

Right, that should have given the replication something to do. Lets return to the Replication Console and see what's happening.