Dan McGhee wrote:
I need to check my understanding and maybe gain new knowledge about
building.
From the book or list I remember a caution that some packages don't
build well with parallel building. In the books, I seem to remember in
the instructions some words about this--to make sure the build went OK.
Now that I've enabled the whole capability of my CPU--quad core--I think
I need to be aware of this situation. When building is it the "-j"
option of <make> that controls this? The make man page says that "-j"
controls the number of "jobs" that can occur simultaneously. I think I
know that hyperthreading is not parallel building. This seems like it
could come under the control of "-j" also. Could someone clarify this
for me or point me to a document that discusses the situation?
During my last LFS build, 7.4, I discovered that "-j" was set to 8
somehow. Is this an environment variable. I don't remember what I did
to find this.
This concept and "-j" have now become important to me and I'd like to
learn some more before I start.
man make
https://www.gnu.org/software/make/manual/html_node/Parallel.html#Parallel
-- Bruce
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