On 8/25/15 4:11 PM, Bjoern A. Zeeb wrote:
On 25 Aug 2015, at 22:47 , Chris Stankevitz <ch...@stankevitz.com> wrote:
Can anyone recommend some tools/tricks to figure out what in FreeBSD and/or
>> base SSH is limiting the send/recv buffer and/or TCP window?
if you have the memory, try these sysctls:
kern.ipc.maxsockbuf=146800640
net.inet.tcp.recvbuf_max=67108864
net.inet.tcp.sendbuf_max=67108864
Bjoern,
Thank you for the reply. Before your suggestion my sysctls are:
kern.ipc.maxsockbuf=2097152
net.inet.tcp.recvbuf_max=2097152
net.inet.tcp.sendbuf_max=2097152
Each of these is much larger than the limit I am experiencing (~64,000).
So I [naively] expect changing these values will have no effect. Let
me try...
... okay... sure enough the sysctrl changes you suggest did not change
the 64,000 bytes-in-flight limit I am experiencing.
Thanks for the idea (and keep 'em coming!),
Chris
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