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| author |   Theodore Ts'o <tytso@mit.edu> | 2013-09-22 16:04:19 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-10-10 14:32:21 -0400 |
| commit | 6e9fa2c8a630e6d0882828012431038abce285b9 (patch) | |
| tree | 086a393d401c89e2d0f31699199676e9e1fdab85 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | random: speed up the fast_mix function by a factor of four (diff) | |
| download | linux-dev-6e9fa2c8a630e6d0882828012431038abce285b9.tar.xz linux-dev-6e9fa2c8a630e6d0882828012431038abce285b9.zip | |
random: adjust the generator polynomials in the mixing function slightly
Our mixing functions were analyzed by Lacharme, Roeck, Strubel, and
Videau in their paper, "The Linux Pseudorandom Number Generator
Revisited" (see: http://eprint.iacr.org/2012/251.pdf).
They suggested a slight change to improve our mixing functions
slightly. I also adjusted the comments to better explain what is
going on, and to document why the polynomials were changed.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
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