Watching performance on a DHCP Server

Larry Apolonio isc-dhcp at rh73.com
Thu Nov 15 21:55:04 UTC 2007


David W. Hankins wrote:

>On Thu, Nov 15, 2007 at 11:32:52AM -0800, Larry Apolonio wrote:
>  
>
>>I thought that LEASE_HASH_SIZE determined the amount of the buckets.  
>>But because of the way the hash function, only 65536 buckets can be used.
>>
>>Is this what is going on?
>>    
>>
>
>Actually, no, I'm forced to correct myself.  That shows me for going
>off what I remember of having worked on this.
>
>The *LEASE* hashes do use a special hash function for ID hashes (the
>client id and hardware addresses) that are bounded to 2^24.  I
>remembered the wrong limitation.
>
>  
>
So is 16777213 (The largest prime < 2^24) the most buckets you can create?

Thanks,
Larry A




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