apt-get install siege


siege -b -c 1000 -t 30s

In above command:

  • -c stands for concurrency. We are using 1000 concurrent connections.
  • -t specifies time duration. We are using 30 seconds
  • -b is to run siege in benchmark mode. Without it, siege inserts delay between 2 requests.

Sample Output

Lifting the server siege...      done.
Transactions:		        8036 hits
Availability:		       98.66 %
Elapsed time:		       30.62 secs
Data transferred:	      148.16 MB
Response time:		        2.34 secs
Transaction rate:	      262.44 trans/sec
Throughput:		        4.84 MB/sec
Concurrency:		      612.92
Successful transactions:        8036
Failed transactions:	         109
Longest transaction:	       23.83
Shortest transaction:	        0.01

FILE: /var/siege.log
You can disable this annoying message by editing
the .siegerc file in your home directory; change
the directive 'show-logfile' to false.

Siege Log

Can be found in  /var/siege.log


  1. Greetings,

    When I run this command I get the following error:

    [error] descriptor table full sock.c:108: Too many open files

    I don’t get the error when I reduce the concurrent connections to 500 or 750. Is this something that can be changed with a configuration change, or is this due to limited resources?

    Thanks very much.


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