Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options
 
PerlMonks  

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 perl.plover.com 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?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://267055]
help
Chatterbox?
[Discipulus]: [OT] if i have an svg image (a map of italian provinces) like this one in which way i need to interact with it to have a geochart?
[Corion]: I haven't found a good way to plot stuff into country maps... Maybe one of the demos of D3.js has something usable?
[Discipulus]: i need to use css to get and colorize various different IDs?
[Corion]: I haven't used it, but http://datamaps. github.io/ looks promising
[Discipulus]: thanks.. a more perlish solution?

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (11)
As of 2017-03-23 09:20 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Should Pluto Get Its Planethood Back?



    Results (285 votes). Check out past polls.