From: Felix Becker <mail@felixbecker.name>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Eric Wong <normalperson@yhbt.net>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: socket file descriptor a/m/c-timestamps broken in <= 3.8.8?
Date: Wed, 24 Apr 2013 00:53:01 +0200 [thread overview]
Message-ID: <517710CD.3020205@felixbecker.name> (raw)
In-Reply-To: <1366677456.16391.101.camel@edumazet-glaptop>
Hi,
thank you for that info. Can you tell which mailing list the right one
for this issue is?
Felix
On 04/23/2013 02:37 AM, Eric Dumazet wrote:
> On Tue, 2013-04-23 at 00:30 +0000, Eric Wong wrote:
>> Cc:-ing netdev (no comments of my own)
>>
>> Felix Becker <mail@felixbecker.name> wrote:
>>> Hi,
>>>
>>> I tried to figure out how old my TCP connections are and took
>>> a look at /proc/<pid>/fd/<socketfdnum> using 'ls -la' /
>>> 'stat'.
>>>
>
> Thanks, but its not a network issue, /proc/pid/fd are part of
> another subsystem.
>
> In particular, a/m/c timestamps are volatile (not meaningfull), as
> you can make them disappear by "echo 3 >/proc/sys/vm/drop_caches"
>
> Next time you use "ls /proc/pid/fd/..." timestamps are created.
>
>
>
> -- To unsubscribe from this list: send the line "unsubscribe
> linux-kernel" in the body of a message to majordomo@vger.kernel.org
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next prev parent reply other threads:[~2013-04-23 22:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5175CA2F.2030206@felixbecker.name>
2013-04-23 0:30 ` socket file descriptor a/m/c-timestamps broken in <= 3.8.8? Eric Wong
2013-04-23 0:37 ` Eric Dumazet
2013-04-23 22:53 ` Felix Becker [this message]
2013-04-23 23:18 ` Eric Dumazet
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