On 09/02/16 10:24, Alexander Bluhm wrote:
On Fri, Sep 02, 2016 at 09:43:13AM +0200, Andreas Bartelt wrote:
I'm observing very slow ssh / sshd performance on current (tested on amd64).
Throughput is less than 1/50th of what I'm typically seeing on my boxes.
This drop in performance seems to be independent of the used ciphers (tested
with aes-gcm-128 & chacha20-poly1305).
All tested interfaces are em(4) which, however, seems to be completely
unrelated since I don't observe this huge drop in performance via nc(1) -
it's >70 MB/s via nc(1) vs. ~1-2 MB/s via ssh/scp.
I see a performance drop to 10 Mbit/sec on some old i386 machines
with em(4). Can you try this kernel diff to see wether it is the
same problem?
yes, >50 MB/s now. Thanks!
