[RndTbl] Help with pv?

Kevin McGregor kevin.a.mcgregor at gmail.com
Mon Dec 15 15:21:45 CST 2014

1. Check
2. Check
3. No reset command, apparently, on Solaris 11.2
4. -b is block size. The default is 1024 bytes. Throughput is ~79 MB/s as
compared with the ssh method I started with, which gave 112 MB/s. A larger
blocksize makes a big difference.
5. vi works great!

I left off the -c and -N options, and the mildly mangled output seemed
roughly as expected. I'll fiddle some more tomorrow.

On Mon, Dec 15, 2014 at 1:58 PM, Adam Thompson <athompso at athompso.net>
> On 14-12-15 01:52 PM, Kevin McGregor wrote:
>> As a test I did this:
>> pv -c -N One </dev/zero | nc -b 65536 host1 10001
>> but all I get is
>> ^[[45;1R
>> on the sending end and
>> ^[[63;1R
>> on the listening end. And there it hangs. Both ends. This is after I set
>> up the terminal-type in Solaris. Cursor positioning? Why wouldn't it be
>> interpreted properly?
> At the very least, you should be seeing a bunch of garbage.
> 1) confirm that you aren't running the exact same command on both ends;
> they need to be reciprocals of each other.  On one host you'd run the
> command as you show above, on the other host, you'd run "nc -l 10001 | pv
> -c -N One >/dev/null".
> 2) confirm that you've exported TERM correctly to the environment.
> 3) confirm that, say, reset(1) works as expected.  (If it produces
> garbage, you still have a terminal emulation problem.)
> 4) I assume the "-b" argument to nc(1) is block size?  None of my
> implementations have that flag, so try different sizes and/or the default.
> With TCP Window Scaling, the default should be fairly good anyway.
> 5) confirm that terminal emulation works at all; maybe try vi(1) or
> something like that?  (Remember ESC : q! always quits even if the terminal
> is screwed up.)
> Otherwise... dunno?
> -Adam
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