David Anderson
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4d1b3bc26f
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net/art: implement the stride table building block of ART
A stride table is an 8-bit routing table implemented as an array binary
tree, with a special tree updating function (allot) that enables lightning
fast address lookups and reasonably fast insertion and deletion.
Insertion, deletion and lookup are all allocation-free.
Updates #7781
│ sec/op │
StrideTableInsertion/10/random_order 16.79n ± 2%
StrideTableInsertion/10/largest_first 16.83n ± 1%
StrideTableInsertion/10/smallest_first 16.83n ± 0%
StrideTableInsertion/50/random_order 17.84n ± 1%
StrideTableInsertion/50/largest_first 20.04n ± 1%
StrideTableInsertion/50/smallest_first 16.39n ± 0%
StrideTableInsertion/100/random_order 14.63n ± 0%
StrideTableInsertion/100/largest_first 17.45n ± 4%
StrideTableInsertion/100/smallest_first 12.98n ± 0%
StrideTableInsertion/200/random_order 12.51n ± 4%
StrideTableInsertion/200/largest_first 18.36n ± 3%
StrideTableInsertion/200/smallest_first 9.609n ± 3%
StrideTableDeletion/10/random_order 19.50n ± 1%
StrideTableDeletion/10/largest_first 19.34n ± 0%
StrideTableDeletion/10/smallest_first 19.43n ± 0%
StrideTableDeletion/50/random_order 14.58n ± 1%
StrideTableDeletion/50/largest_first 14.27n ± 2%
StrideTableDeletion/50/smallest_first 15.51n ± 0%
StrideTableDeletion/100/random_order 12.02n ± 3%
StrideTableDeletion/100/largest_first 10.64n ± 0%
StrideTableDeletion/100/smallest_first 13.21n ± 3%
StrideTableDeletion/200/random_order 14.05n ± 4%
StrideTableDeletion/200/largest_first 9.288n ± 5%
StrideTableDeletion/200/smallest_first 18.51n ± 1%
StrideTableGet 0.5010n ± 0%
│ routes/s │
StrideTableInsertion/10/random_order 59.55M ± 2%
StrideTableInsertion/10/largest_first 59.42M ± 1%
StrideTableInsertion/10/smallest_first 59.43M ± 0%
StrideTableInsertion/50/random_order 56.04M ± 1%
StrideTableInsertion/50/largest_first 49.91M ± 1%
StrideTableInsertion/50/smallest_first 61.00M ± 0%
StrideTableInsertion/100/random_order 68.35M ± 0%
StrideTableInsertion/100/largest_first 57.32M ± 3%
StrideTableInsertion/100/smallest_first 77.06M ± 0%
StrideTableInsertion/200/random_order 79.93M ± 4%
StrideTableInsertion/200/largest_first 54.47M ± 3%
StrideTableInsertion/200/smallest_first 104.1M ± 3%
StrideTableDeletion/10/random_order 51.28M ± 1%
StrideTableDeletion/10/largest_first 51.70M ± 0%
StrideTableDeletion/10/smallest_first 51.48M ± 0%
StrideTableDeletion/50/random_order 68.60M ± 1%
StrideTableDeletion/50/largest_first 70.09M ± 2%
StrideTableDeletion/50/smallest_first 64.45M ± 0%
StrideTableDeletion/100/random_order 83.21M ± 3%
StrideTableDeletion/100/largest_first 94.03M ± 0%
StrideTableDeletion/100/smallest_first 75.69M ± 3%
StrideTableDeletion/200/random_order 71.20M ± 5%
StrideTableDeletion/200/largest_first 107.7M ± 5%
StrideTableDeletion/200/smallest_first 54.02M ± 1%
StrideTableGet 1.996G ± 0%
Signed-off-by: David Anderson <danderson@tailscale.com>
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2023-04-04 09:00:24 -07:00 |
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