[debbugs-tracker] bug#12489: closed (inconsistent output from 'dd' w/rt stats and suppression.)

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Your message dated Mon, 24 Sep 2012 03:47:25 +0100
with message-id <address@hidden>
and subject line Re: bug#12489: inconsistent output from 'dd' w/rt stats and 
suppression.
has caused the debbugs.gnu.org bug report #12489,
regarding inconsistent output from 'dd' w/rt stats and suppression.
to be marked as done.

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12489: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12489
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> --- Begin Message ---
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> Subject: 
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> inconsistent output from 'dd' w/rt stats and suppression.
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> Date: 
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> Sat, 22 Sep 2012 12:09:55 -0700
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> User-agent: 
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> Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US;	rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24	Mnenhy/0.7.6.666
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> If I have 'dd' running, and want to see stats, the manpage says I can 
> send it
> a USR1 signal and it will print "I/O statistics to standard error and 
> then resume copying".  I see something like:
>           18335302+0  records  in  18335302+0 records out 9387674624 bytes
>              (9.4 GB) copied, 34.6279 seconds, 271 MB/s
>
> The same I/O statistics are displayed at the end of a 'dd' session:
>
> 18335302+0 records  in
> 18335302+0 records out
> 9387674624 bytes (9.4 GB) copied, 34.6279 seconds, 271 MB/s
>
> The man page says I can use the
> "status=noxfer" to suppress transfer statistics".
>
> But when I use it the number of records transfered into 'dd'
> and out of 'dd' are still displayed.  Suppressed is the
> sum of the bytes transferred in and out, and the time+rate.
>
> So... it seems status=noxfer isn't fully suppressing the statistics
> but more accurately only suppresses the summary, time and rate
> stats and not the # records transfered in and out.
>
> Either way... shouldn't it just suppress the whole message,
> or what's the point?  What switch would one use to suppress
> all I/O statistics?
>
> Thanks,
> Linda
>
>
>
>
> --- End Message ---

--- Begin Message --- Subject: Re: bug#12489: inconsistent output from 'dd' w/rt stats and suppression. Date: Mon, 24 Sep 2012 03:47:25 +0100 User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20110816 Thunderbird/6.0

On 09/23/2012 12:12 PM, Pádraig Brady wrote:

I think there was general consensus that the status=noinfo should be applied
http://lists.gnu.org/archive/html/bug-coreutils/2010-02/msg00159.html

I'll look at that this evening.

I changed things a bit in the attached patch.
I used 'status=none' rather than 'status=noinfo',
to make it obvious all stderr messages were being suppressed.
Also, I kept the bitmask nature of the existing code
to make it more consistent and extendible.

cheers,
Pádraig.

dd-status-none.diff
Description: Text document

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