Setting Affinity for VSX

Discovered this cool thing while setting affinities for CoreXL in VSX. I have not seen this documented anywhere and it is so critical to setting the affinities correctly. Not sure why they don’t document this so.

When setting affinties for VSX, there is a specific hierarchy:

  1. (V)s – is the king
  2. (P)rocess – is the queen
  3. (I)instance – is the jack

hierarchy

When you set affinity for the the VS, you are setting affinity for ALL!!! the threads of the VS in user space including the helper threads (FWD,CPD,VPD):

VSaffinity

When you set affinity for the fwk INSIDE of a VS, you are setting the (P) process affinity for ALL of the instances of that (P)process which is the fwk:

v and I affinity

And finally when you set the affinity for the fwk instance or as I call it the VSi instance, you are setting the affinity for a specific thread of the fwk (above). NOTE: you have to be in the VS environment to set the instance affinity.

You can see the results in the output below.  Each of the affinities indicate what command set its affinity:

output

and guess where this information is stored???

priorityorder

Cool huh???

And if you really are a Linux affinity geek you’d know what this is all about:

linuxaffinity

VSX over and OUT!

You’d see a lot more of this if you took my class!

dreez

Advertisements
Post a comment or leave a trackback: Trackback URL.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s

Helen's Loom

"Peculiar travel suggestions are dancing lessons from God." - Kurt Vonnegut

Life Stories from Dreez

These are stories from my travels. Generally I like to write stories about local people that I meet and also brag about living the retirement dream with my #1 wife Gaby. She is also my only wife.

%d bloggers like this: