In article <201109081526.p88fqt1q002...@ginseng.pulsar-zone.net>, Matthew Mondor <mm_li...@pulsar-zone.net> wrote: >Hello, > >I've been wondering if it was possible to change the pty(4) internal >buffer size, as I noticed that ppp tunnels cannot use a larger frame >size. Because of this, it seems that the optimal MTU be 856, which is >so small that context switches become the bottleneck. > >It would be nice to for instance be able to use an MTU of 3000 so that >there are less context switches, but unfortunately tracing the >processes show that 1024 bytes are read from the pty devices at most. > >I looked at the various tty(4) termios(4) and pty(4) without finding an >option to change the buffer size. Is there a way at all to change it? >
Please file a PR about this. I've been meaning to fix it. christos
