On Mon, Dec 28, 2020 at 2:14 PM Laurențiu Păncescu < lpancescu@centosproject.org> wrote:
On 12/28/20 1:30 PM, redbaronbrowser via CentOS-devel wrote:
In my experience, the prep section of building a kernel always amounts
to less than 1% of the overall build time. There is no time savings by pre-applying the patches that justifies the lack of time savings.
This started with RHEL 6, and the likely motivation was to hinder Oracle Enterprise Linux, not to save build time.[1] According to Wikipedia, Oracle even provides a service breaking down Red Hat's huge diff from upstream into individual patches, not sure how effective the Red Hat approach is, if the goal is indeed to stop OEL.[2, last paragraph]
[1]
http://www.h-online.com/open/news/item/Controversy-surrounds-Red-Hat-s-obfus... [2] https://en.wikipedia.org/wiki/Red_Hat_Enterprise_Linux#Rebuilds
Going to https://oss.oracle.com/git/gitweb.cgi?p=redpatch.git;a=summary it seems the latest commit is about 3 years ago though.... donna if repository or way of providing individual patches changed in the meantime
Gianluca