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From: Nadia Derbey <Nadia.Derbey@bull.net>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: containers@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, cmm@us.ibm.com,
akpm@linux-foundation.org
Subject: Re: [PATCH 1/8] Scaling msgmni to the amount of lowmem
Date: Wed, 07 May 2008 07:13:10 +0200 [thread overview]
Message-ID: <48213A66.5030502@bull.net> (raw)
In-Reply-To: <1FE6DD409037234FAB833C420AA843EC014392F9@orsmsx424.amr.corp.intel.com>
Luck, Tony wrote:
>>Well, this printk had been suggested by somebody (sorry I don't remember
>>who) when I first submitted the patch. Actually I think it might be
>>useful for a sysadmin to be aware of a change in the msgmni value: we
>>have the message not only at boot time, but also each time msgmni is
>>recomputed because of a change in the amount of memory.
>
>
> If the message is directed at the system administrator, then it would
> be nice if there were some more meaningful way to show the namespace
> that is affected than just printing the hex address of the kernel structure.
>
> As the sysadmin for my test systems, printing the hex address is mildly
> annoying ... I now have to add a new case to my scripts that look at
> dmesg output for unusual activity.
>
> Is there some better "name for a namespace" than the address? Perhaps
> the process id of the process that instantiated the namespace???
>
Unfortunately no when we are inside an ipc namespace, we don't have such
interesting informations. But I agree with you, an address is not
readable enough. I'll try to find a solution.
Regards,
Nadia
next prev parent reply other threads:[~2008-05-07 5:13 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-11 14:16 [PATCH 0/8] Change default MSGMNI tunable to scale with lowmem (v3) Nadia.Derbey
2008-02-11 14:16 ` [PATCH 1/8] Scaling msgmni to the amount of lowmem Nadia.Derbey
2008-02-16 5:59 ` Andrew Morton
2008-02-18 9:19 ` Nadia Derbey
2008-02-18 13:08 ` Nadia Derbey
2008-02-19 8:50 ` [LTP] " Subrata Modak
2008-02-19 17:16 ` Nadia Derbey
2008-02-19 22:16 ` Matt Helsley
2008-02-21 8:39 ` Nadia Derbey
2008-02-21 12:36 ` Nadia Derbey
2008-02-21 13:02 ` Nadia Derbey
2008-02-21 13:39 ` Subrata Modak
2008-02-22 6:25 ` Nadia Derbey
2008-02-22 8:41 ` Subrata Modak
2008-02-20 9:44 ` Subrata Modak
2008-04-29 20:28 ` Tony Luck
2008-05-05 8:45 ` Nadia Derbey
2008-05-06 16:42 ` Luck, Tony
2008-05-06 18:05 ` Serge E. Hallyn
2008-05-07 5:37 ` Nadia Derbey
2008-05-07 13:17 ` Serge E. Hallyn
2008-05-07 18:12 ` Matt Helsley
2008-05-07 5:13 ` Nadia Derbey [this message]
2008-02-11 14:16 ` [PATCH 2/8] Scaling msgmni to the number of ipc namespaces Nadia.Derbey
2008-02-11 14:16 ` [PATCH 3/8] Defining the slab_memory_callback priority as a constant Nadia.Derbey
2008-02-11 14:16 ` [PATCH 4/8] Recomputing msgmni on memory add / remove Nadia.Derbey
2008-02-11 14:16 ` [PATCH 5/8] Invoke the ipcns notifier chain as a work item Nadia.Derbey
2008-02-11 14:16 ` [PATCH 6/8] Recomputing msgmni on ipc namespace creation/removal Nadia.Derbey
2008-02-11 14:16 ` [PATCH 7/8] Do not recompute msgmni anymore if explicitely set by user Nadia.Derbey
2008-02-11 20:24 ` Andrew Morton
2008-02-12 9:32 ` Nadia Derbey
2008-02-12 9:44 ` Andrew Morton
2008-02-12 15:15 ` Nadia Derbey
2008-02-12 19:44 ` Andrew Morton
2008-02-14 11:47 ` Nadia Derbey
2008-02-12 9:45 ` Nadia Derbey
2008-02-11 14:16 ` [PATCH 8/8] Re-enable msgmni automatic recomputing msgmni if set to negative Nadia.Derbey
2008-02-11 20:27 ` Andrew Morton
2008-02-12 11:38 ` Nadia Derbey
2008-05-20 14:28 [PATCH 1/8] Scaling msgmni to the amount of lowmem Michael Kerrisk
2008-05-20 14:45 ` Nadia Derbey
2008-05-20 14:56 ` Michael Kerrisk
2008-05-21 10:47 ` Michael Kerrisk
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