On Thu, 7 Jan 2021 11:08:16 +0800 lll wrote: > 在 2020/12/19 8:46, Jakub Kicinski 写道: > > On Fri, 18 Dec 2020 14:11:16 +0800 lyl wrote: > >> Remove tcp_low_latency, since it is not functional After commit > >> e7942d0633c4 (tcp: remove prequeue support) > >> > >> Signed-off-by: lyl <liyongl...@chinatelecom.cn> > > > > I don't think we can remove sysctls, even if they no longer control > > the behavior of the kernel. The existence of the file itself is uAPI. > > Got it. But a question: why tcp_tw_recycle can be removed totally? > it is also part of uAPI
Good question, perhaps with tcp_tw_recycle we wanted to make sure users who depended on it notice removal, since the feature was broken by design? tcp_low_latency is an optimization, not functionality which users may depend on. But I may be wrong so CCing authors.
