From: Eric Dumazet <eric.dumazet@gmail.com>
To: Octavian Purdila <opurdila@ixiacom.com>
Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Subject: Re: [PATCH] [next-next-2.6] net: configurable device name hash
Date: Wed, 11 Nov 2009 21:08:31 +0100 [thread overview]
Message-ID: <4AFB19BF.9060901@gmail.com> (raw)
In-Reply-To: <200911112138.44074.opurdila@ixiacom.com>
Octavian Purdila a écrit :
> On Wednesday 11 November 2009 21:21:20 you wrote:
>> From: Octavian Purdila <opurdila@ixiacom.com>
>> Date: Wed, 11 Nov 2009 21:16:14 +0200
>>
>>> Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
>> We're not doing this sorry.
>>
>> Dynamically size it at boot time or something, but a config
>> option is out of the question.
>>
>
> I don't think we can dynamically size it at boot time since it depends on the
> usage pattern which is impossible to determine at boot time, right?
>
> Would it be acceptable to grow it at runtime, in list_netdevice for instance?
It will be really hard, now we use RCU lookups...
What workload could reasonably need 1.000.000 hash slots, and 16.000.000 netdevices ?
next prev parent reply other threads:[~2009-11-11 20:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-11 19:16 [PATCH] [next-next-2.6] net: configurable device name hash Octavian Purdila
2009-11-11 19:21 ` David Miller
2009-11-11 19:38 ` Octavian Purdila
2009-11-11 20:08 ` Eric Dumazet [this message]
2009-11-11 20:32 ` Octavian Purdila
2009-11-11 20:42 ` David Miller
2009-11-11 21:33 ` Stephen Hemminger
2009-11-11 21:47 ` Octavian Purdila
2009-11-11 22:24 ` Stephen Hemminger
2009-11-12 2:36 ` David Miller
2009-11-12 12:46 ` Mark Smith
2009-11-12 14:09 ` Eric Dumazet
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