linux-kernel - Re: [PATCH] proc: fix documentation for /proc/stat, line "intr"

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Message-ID: <CAKgNAkj995fwjE2Jk59kbVqNJFR7Q9FfVTbz81Wq6z5XYyPJSQ@mail.gmail.com>
Date:	Wed, 23 Apr 2014 07:14:38 +0200
From:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:	Randy Dunlap <rdunlap@...radead.org>
Cc:	Jan Moskyto Matejka <mq@...e.cz>, linux-doc@...r.kernel.org,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] proc: fix documentation for /proc/stat, line "intr"

On Wed, Apr 23, 2014 at 12:35 AM, Randy Dunlap <rdunlap@...radead.org> wrote:
> On 04/22/14 11:19, Michael Kerrisk (man-pages) wrote:
>> On 04/22/2014 05:29 PM, Jan Moskyto Matejka wrote:
>>> The sum at the beginning of line "intr" includes also unnumbered interrupts.
>>> It implies that the sum at the beginning isn't the sum of the remainder of the
>>> line, not even an estimation.
>>>
>>> Fixed the documentation to mention that.
>>
>> I'm not really doubting what you claim, Jan, but it would be really
>> helpful if you provided some data to support the proposed change
>> (Kernel source references, or notes about testing you've done, or
>> pointers to mailing list threads, authoritative note that you are
>> the maintainer of some relevant kernel subsystem...). Do you have
>> something like that? (It's also useful for the change log.)
>
> I wouldn't mind more of a changelog, but the additional text is
> certainly correct.
>
> Thanks.  I'll apply the patch, but more changelog comments are welcome.

And I see now that this text could also reasonably fit into the
proc(5) man page. So I've added, with a Reviewed-by: tag for Randy.
Thanks for the text, Jan.

Cheers,

Michael


>>> Signed-off-by: Jan Moskyto Matejka <mq@...e.cz>
>>> ---
>>>  Documentation/filesystems/proc.txt | 5 +++--
>>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
>>> index f00bee1..4e6f9d0 100644
>>> --- a/Documentation/filesystems/proc.txt
>>> +++ b/Documentation/filesystems/proc.txt
>>> @@ -1245,8 +1245,9 @@ second).  The meanings of the columns are as follows, from left to right:
>>>
>>>  The "intr" line gives counts of interrupts  serviced since boot time, for each
>>>  of the  possible system interrupts.   The first  column  is the  total of  all
>>> -interrupts serviced; each  subsequent column is the  total for that particular
>>> -interrupt.
>>> +interrupts serviced  including  unnumbered  architecture specific  interrupts;
>>> +each  subsequent column is the  total for that particular numbered interrupt.
>>> +Unnumbered interrupts are not shown, only summed into the total.
>>>
>>>  The "ctxt" line gives the total number of context switches across all CPUs.
>>>
>>>
>>
>>
>
>
> --
> ~Randy



-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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