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Re: Faster Hash Slices

by shmem (Canon)
on Nov 28, 2013 at 13:50 UTC ( #1064827=note: print w/replies, xml ) Need Help??


in reply to Faster Hash Slices

What Eily says. Then, according to perldata:

You can preallocate space for a hash by assigning to the keys() function. This rounds up the allocated buckets to the next power of two:
keys(%users) = 1000; # allocate 1024 buckets

I'm not sure about the impact on performance, though.

perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

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[1nickt]: They assume that I want things I don;t and don;t provide things I do want. Looking for a 17" laptop with 4k (even 3K display) and full numeric-pad keyboard.
[1nickt]: They assume that if I want a 17" monitor I could not possibly want 4k screen
[1nickt]: They assume I do not need a DVD drive
[1nickt]: Heh, or they assume that if I want all that I am a "gamer" and I must want red backlighting for the keyboards and that I will pay $3500 ...
[stevieb]: what is your budget? HP 17" 4k display, DVD writer, full numeric keypad
[stevieb]: $1500 USD

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