Knowledgebase

If you want to verify how many CPU cores (workers) your current LiteSpeed Web Server license supports, you can easily check it from the command line.

Step 1: Check Running LiteSpeed Processes

Run the following command as root:

ps aux | grep litespeed

Step 2: Count the Worker Processes

You will see output similar to the following:

root      5344  0.0  1.0 21474956380 41452 ?   S    16:00   0:00 litespeed (lshttpd - main)
nobody    5347  0.2  4.3 21474999300 167916 ?  Sl   16:00   0:02 litespeed (lshttpd - #01)
nobody    5348  0.2  4.3 21475018528 167764 ?  Sl   16:00   0:02 litespeed (lshttpd - #02)
nobody    5354  0.2  4.3 21475017464 169564 ?  Sl   16:00   0:02 litespeed (lshttpd - #03)
nobody    5361  0.2  4.1 21474999752 161328 ?  Sl   16:00   0:02 litespeed (lshttpd - #04)
nobody    5366  0.2  4.3 21475015736 168296 ?  Sl   16:00   0:02 litespeed (lshttpd - #05)
nobody    5372  0.2  4.3 21475015324 169664 ?  Sl   16:00   0:02 litespeed (lshttpd - #06)
nobody    5378  0.2  4.8 21475021156 188424 ?  Sl   16:00   0:02 litespeed (lshttpd - #07)
nobody    5384  0.2  4.0 21475000400 158732 ?  Sl   16:00   0:02 litespeed (lshttpd - #08)

The first line (lshttpd - main) is the LiteSpeed master process.

Each additional process labeled lshttpd - #XX represents one LiteSpeed worker.

In the example above:

• #01 through #08 are running.

• This indicates an 8-core LiteSpeed license.

Alternative Command

To display only the LiteSpeed worker processes:

ps aux | grep "lshttpd - #"

Or simply count the workers automatically:

ps aux | grep "lshttpd - #" | grep -v grep | wc -l

Example output:

8

This means your LiteSpeed license is currently running 8 worker processes (8 cores).

If the Reported Core Count Is Incorrect

If the number of LiteSpeed worker processes does not match the license you purchased:

1. Restart LiteSpeed:

   systemctl restart lsws
   

   or

   service lsws restart
   

2. Run the verification command again.

3. If the issue persists, please contact our support team with the output of:

   ps aux | grep litespeed
   

   so we can verify your LiteSpeed license and investigate the issue.