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Swingbench can now be started to simulate an order-entry system and test the replication. 

1. Start a new ssh session to the source server (dbv01) and logon as oracle. To connect to the first VM from the host machine (laptop), use the following command: 

ssh -p10022 oracle@192.168.1.197

This uses port forwarding which was setup when Virtual Box was configured (02 - Set up NAT network in Virtual Box).

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.

/u01/oracle/swingbench/bin/charbench -cs //source-int/pdb1 -u oe -p oe -uc 10 -min 10 -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.

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

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

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.

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. 

Your laptop has to be powerful enough to handle this load.


/u01/oracle/swingbench/bin/charbench -cs //source-int/orcl -u oe -p oe -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
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