On Fri, Feb 21, 2025 at 04:53:54PM -0000, Michael van Elst wrote: > g...@lexort.com (Greg Troxel) writes: > > >FWIW, on two of my systems N9 and N10, SNDBUF fails. > > The default kern.sbmax is 256kB. People that have "tuned" their TCP > usually bumped that value, without you cannot use 1MB buffers.
That is indeed the case on my machine following this old suggestion https://mail-index.netbsd.org/current-users/2017/09/21/msg032369.html by David Young. > The default kern.somaxkva is 16MB. That might be not enough if you > start using 1MB buffers. Thanks! Thomas