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Re^9: Our perl/xs/c app is 30% slower with 64bit 5.24.0, than with 32bit 5.8.9. Why?

by choroba (Cardinal)
on Dec 22, 2016 at 13:48 UTC ( [id://1178363]=note: print w/replies, xml ) Need Help??


in reply to Re^8: Our perl/xs/c app is 30% slower with 64bit 5.24.0, than with 32bit 5.8.9. Why?
in thread Our perl/xs/c app is 30% slower with 64bit 5.24.0, than with 32bit 5.8.9. Why?

> a short perl program which created a hash with 28 shortish random word keys

What Perl version? Before 5.18 with hash randomization or more recent?

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
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Re^10: Our perl/xs/c app is 30% slower with 64bit 5.24.0, than with 32bit 5.8.9. Why?
by dave_the_m (Monsignor) on Dec 22, 2016 at 16:21 UTC
    What Perl version? Before 5.18 with hash randomization or more recent?
    This was in feb 2013, so I presume just before 5.18.0, which fixed this issue.

    Dave.

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