Thread, LWP and 'top' with 'H'

• Another problem: how do we see the threads in the system (e.g. CPU usage of each thread)?
• Solution: the Linux 'top' command allows viewing threads:
  • just hit 'H' when inside 'top'...
  • ...at which point each thread will be seen on a separate line...
  • ...and then the 'PID' field will show the LWP ID (as seen in gdb's 'info thread')

Originally written by guy keren