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Message-ID: <3C14E5CD.9050906@candelatech.com>
Date: Mon, 10 Dec 2001 09:41:49 -0700
From: Ben Greear <greearb@candelatech.com>
Organization: Candela Technologies
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CC: Chris Wright <chris@wirex.com>,
        linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: question on select:  How big can the empty buffer space be before select returns ready-to-write?
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Alan Cox wrote:

>>* Ben Greear (greearb@candelatech.com) wrote:
>>
>>>For instance, it appears that select will return that a socket is
>>>writable when there is, say 8k of buffer space in it.  However, if
>>>I'm sending 32k UDP packets, this still causes me to drop packets
>>>due to a lack of resources...
>>>
>>udp has a fixed 8k max payload. did you try breaking up your packets?
>>
> 
> UDP has a 64K - headers max payload. 


Yes, and I am writing code to specifically try out large UDP
packet sizes, so limiting myself to a certain size is not at
all useful in this case....

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>       <Ben_Greear AT excite.com>
President of Candela Technologies Inc      http://www.candelatech.com
ScryMUD:  http://scry.wanfear.com     http://scry.wanfear.com/~greear


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