Overview#

Heavy-weight processes" (HWPs) have a significant amount of overhead when switching because all the tables have to be flushed from the processor for each task switch.

Linux implements threads as LWPs#

The only way to achieve shared information between HWPs is through pipes and "shared memory

Threads are "light weight processes" (LWPs).

The idea is a process has five fundamental parts:

  • code ("text")
  • data (VM)
  • stack
  • file I/O
  • signal tables

In Linux threads are pseudo processes. #

So you see multiples NDSD’s running on the same machine.
ps -aef |grep ndsd  
This will show you the parent processes, thread manager and the threads started by NDSD.

max-#

ndsconfig get | grep max-threads

More Information#

There might be more information for this subject on one of the following:

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« This page (revision-7) was last changed on 01-Jan-2017 15:48 by jim