On Wed, Oct 28, 2026 at 11:53:46AM -0700, Ross Vandegrift wrote: > > For the record, I don't love the idea of eliminating the second kernel > > build. While we haven't taken advantage of this opportunity to this > > point, it allows us to provide build-time optimizations to best tune > > performance for specific deployment scenarios. But I suppose runtime > > tuning is sufficient for most people, as we haven't received any > > requests for different build-time optimizations afaik. So I don't > > object too strongly to the plan, and I understand that it offers some > > advantages. > > Are there specific optimizations you have in mind that would become > impossible?
CONFIG_HZ_* is an example that comes to mind. Changing that for the cloud kernels was requested several years ago (see #941284) and we decіded not to do it, so I'm just mentioning that as a specific example, not a proposal. There are likely other such compile-time tunables that might be worth considering. noah
