From: Alexander Clouter <alex@digriz.org.uk>
To: linux-kernel@vger.kernel.org
Subject: Re: Measuring startup-time from userspace
Date: Mon, 3 Jan 2011 05:12:24 +0000 [thread overview]
Message-ID: <oe28v7-g0t.ln1@chipmunk.wormnet.eu> (raw)
In-Reply-To: 4D20FEF0.5020206@mozilla.com
Taras Glek <tglek@mozilla.com> wrote:
>
> Does Linux provide a reasonable way to measure how long a process has
> existed for? The goal is to have a function that returns the number of
> milliseconds since process-creation.
>
At a glance:
----
alex@berk:~$ stat /proc/16863/
File: `/proc/16863/'
Size: 0 Blocks: 0 IO Block: 1024 directory
Device: 3h/3d Inode: 837808 Links: 6
Access: (0555/dr-xr-xr-x) Uid: ( 1000/ alex) Gid: ( 1000/ alex)
Access: 2011-01-03 05:07:47.888363341 +0000
Modify: 2011-01-03 05:07:47.888363341 +0000
Change: 2011-01-03 05:07:47.888363341 +0000
----
A nanosecond resolution timestamp for the moment when the pid is created
it seems. I could be completely wrong, but this seems to be one of
those "too easy to be true" moments.
Cheers
--
Alexander Clouter
.sigmonster says: Marriage is the sole cause of divorce.
prev parent reply other threads:[~2011-01-03 5:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-02 22:40 Measuring startup-time from userspace Taras Glek
2011-01-03 1:29 ` Ben Gamari
2011-01-03 5:12 ` Alexander Clouter [this message]
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