netdev - Re: [PATCH iproute2-next] ss: add option to print socket information on one line

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Message-ID: <20190425155951.26d91cc6@hermes.lan>
Date:   Thu, 25 Apr 2019 15:59:51 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Josh Hunt <johunt@...mai.com>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2-next] ss: add option to print socket
 information on one line

On Thu, 25 Apr 2019 17:21:48 -0400
Josh Hunt <johunt@...mai.com> wrote:

> Multi-line output in ss makes it difficult to search for things with
> grep. This new option will make it easier to find sockets matching
> certain criteria with simple grep commands.
> 
> Example without option:
> $ ss -emoitn
> State      Recv-Q Send-Q Local Address:Port               Peer Address:Port
> ESTAB      0      0      127.0.0.1:13265              127.0.0.1:36743               uid:1974 ino:48271 sk:1 <->
> 	 skmem:(r0,rb2227595,t0,tb2626560,f0,w0,o0,bl0,d0) ts sack reno wscale:7,7 rto:211 rtt:10.245/16.616 ato:40 mss:65483 cwnd:10 bytes_acked:41865496 bytes_received:21580440 segs_out:242496 segs_in:351446 data_segs_out:242495 data_segs_in:242495 send 511.3Mbps lastsnd:2383 lastrcv:2383 lastack:2342 pacing_rate 1022.6Mbps rcv_rtt:92427.6 rcv_space:43725 minrtt:0.007
> 
> Example with new option:
> $ ss -emoitnO
> State    Recv-Q Send-Q          Local Address:Port            Peer Address:Port
> ESTAB    0      0                   127.0.0.1:13265              127.0.0.1:36743 uid:1974 ino:48271 sk:1 <-> skmem:(r0,rb2227595,t0,tb2626560,f0,w0,o0,bl0,d0) ts sack reno wscale:7,7 rto:211 rtt:10.067/16.429 ato:40 mss:65483 pmtu:65535 rcvmss:536 advmss:65483 cwnd:10 bytes_sent:41868244 bytes_acked:41868244 bytes_received:21581866 segs_out:242512 segs_in:351469 data_segs_out:242511 data_segs_in:242511 send 520.4Mbps lastsnd:14355 lastrcv:14355 lastack:14314 pacing_rate 1040.7Mbps delivery_rate 74837.7Mbps delivered:242512 app_limited busy:1861946ms rcv_rtt:92427.6 rcv_space:43725 rcv_ssthresh:43690 minrtt:0.007
> 
> Signed-off-by: Josh Hunt <johunt@...mai.com>

I agree with this, but probably time to give ss a json output as well.