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[ Source: critnib  ]

Package: libcritnib1 (1.1-2 and others)

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ordered map data structure with lock-free reads

Critnib is a data structure that provides a very fast equal and less-than/greater-than searches; it is a mix between DJBerstein's critbit and radix trees. While in bad cases it has worse memory use than binary trees, it works well on real-life data which tends to have a limited number of "decision bits":

 * fully random: divergence happens immediately
 * malloc addresses: clumps of distinct bits in the middle
 * sequences: only lowest bits are filled

This library ships only uintptr_t→uintptr_t mappings, optimized for reads from a very critical section but not so frequent writes. Other variants also exist (such as fully lock-free writes, keys of arbitrary length), and can be added upon request.

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Download libcritnib1

Download for all available architectures
Architecture Version Package Size Installed Size Files
alpha (unofficial port) 1.1-2+b1 7.4 kB81.0 kB [list of files]
amd64 1.1-2+b1 7.2 kB33.0 kB [list of files]
arm64 1.1-2+b1 7.2 kB81.0 kB [list of files]
armel 1.1-2+b1 7.1 kB81.0 kB [list of files]
armhf 1.1-2+b1 6.4 kB81.0 kB [list of files]
hppa (unofficial port) 1.1-2+b1 8.7 kB37.0 kB [list of files]
i386 1.1-2+b1 7.4 kB33.0 kB [list of files]
ia64 (unofficial port) 1.1-2+b1 7.9 kB30.0 kB [list of files]
m68k (unofficial port) 1.1-2+b1 6.4 kB25.0 kB [list of files]
mips64el 1.1-2+b1 7.2 kB82.0 kB [list of files]
mipsel 1.1-2+b1 7.2 kB81.0 kB [list of files]
ppc64 (unofficial port) 1.1-2+b1 8.2 kB145.0 kB [list of files]
ppc64el 1.1-2+b1 8.1 kB145.0 kB [list of files]
riscv64 (unofficial port) 1.1-2+b1 6.7 kB25.0 kB [list of files]
s390x 1.1-2+b1 6.8 kB25.0 kB [list of files]
sh4 (unofficial port) 1.1-2+b1 7.1 kB81.0 kB [list of files]
sparc64 (unofficial port) 1.1-2+b1 6.9 kB1,042.0 kB [list of files]
x32 (unofficial port) 1.1-2+b1 7.0 kB29.0 kB [list of files]