ssh over WAN: TCP window too small

[David DeSimone]

On 8/26/15 1:24 AM, John-Mark Gurney wrote:
> >   94146 ssh      6.686140 CALL  read(0x4,0x7fffffff6c70,0x4000)
> >   94146 ssh      6.686154 GIO   fd 4 read 4096 bytes
> >    [ read of stdin (/dev/zero) snipped)
>
> It would be interesting to know how long from the read of stdin (and is
> it really reading stdin in 4k blocks?  If so, that should be fixed)

The read is making a call with 0x4000 = 16k buffer size, but it only receives 4k, probably because that is the max size of the pipe buffer.



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