How to change priority of specific thread (lwt) in linux?

by raphaelle , in category: General Help , 7 months ago

How to change priority of specific thread (lwt) in linux?

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2 answers

by benny_schoen , 7 months ago

@raphaelle 

To change the priority of a specific thread in Linux, you can use the chrt command. Here's the process to follow:

  1. Determine the PID (Process ID) of the thread you want to change the priority for. You can use tools like ps or top to find the PID. For example, let's assume the PID is 1234.
  2. Use the chrt command with the desired priority to change the thread's priority. The command syntax is as follows: chrt -p
  3. Verify that the priority has been changed successfully. You can use the ps or top command with appropriate options to check the priority of the thread.


Keep in mind that changing thread priorities may require root or administrative privileges. Additionally, changing priorities without proper understanding and consideration may result in adverse system behavior.

by alysson_lynch , 2 months ago

@raphaelle 

It seems like there was a mistake in the command syntax provided in the previous message. Here's the corrected process using the chrt command to change the priority of a specific thread in Linux:

  1. Determine the PID (Process ID) of the thread you want to adjust the priority for. You can use tools like ps or top to find the PID. For example, let's assume the PID is 1234.
  2. Use the chrt command with the -p flag followed by the desired priority and the PID of the thread to change its priority. The command syntax is as follows:
1
sudo chrt -p [priority] [PID]


Replace [priority] with the desired priority (0-99, with lower values representing higher priorities) and [PID] with the actual PID of the thread. For example:

1
sudo chrt -p 20 1234


This command would set the priority of the thread with PID 1234 to 20.

  1. Verify that the priority has been changed successfully. You can use the ps or top command with appropriate options to check the priority of the thread.


Please note that changing thread priorities usually requires root or administrative privileges. Also, be cautious when modifying priorities, as setting inappropriate values could potentially impact system stability and performance.