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Author jdemeyer
Recipients eric.smith, jdemeyer, mark.dickinson, rhettinger, sir-sigurd, tim.peters
Date 2018-09-25.08:42:03
SpamBayes Score -1.0
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Message-id <1537864923.96.0.545547206417.issue34751@psf.upfronthosting.co.za>
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> When testing what, specifically?  And the standard 32-bit FNV multiplier, or the standard 64-bit FNV multiplier?

FNV-1a with the t ^= 2 * t mangling running my new testsuite on either PR 9471 or PR 9534 using the 64-bit FNV multiplier to produce 64-bit hashes. In other words, the code from PR 9534 but just changing the multiplier.

On the full 64-bit range, I got 2 collisions (where statistically 0 would be expected). When truncated to 32-bits, I got about 1700 collisions (where statistically about 15 would be expected).
History
Date User Action Args
2018-09-25 08:42:03jdemeyersetrecipients: + jdemeyer, tim.peters, rhettinger, mark.dickinson, eric.smith, sir-sigurd
2018-09-25 08:42:03jdemeyersetmessageid: <1537864923.96.0.545547206417.issue34751@psf.upfronthosting.co.za>
2018-09-25 08:42:03jdemeyerlinkissue34751 messages
2018-09-25 08:42:03jdemeyercreate