Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight

Re: Re: Re: Re: Slurping BIG files into Hashes

by jsprat (Curate)
on Jun 19, 2003 at 02:26 UTC ( #267055=note: print w/replies, xml ) Need Help??

in reply to Re: Re: Re: Slurping BIG files into Hashes
in thread Slurping BIG files into Hashes

Try presizing the hash - keys %lookup = 160_000;

If it is hash collisions, this might solve the problem.

dominus has an interesting bit at called When Hashes Go Wrong.

Update: Meant to ask you to "print scalar %lookup;" after all is done. scalar %hash will give you the number of used buckets / number of allocated buckets. If the number of used buckets is low (like 1/16) all your hash items have been put in the same bucket!

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://267055]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (10)
As of 2016-10-28 23:19 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (387 votes). Check out past polls.