tailscale

Commit Graph

Author	SHA1	Message	Date
David Anderson	e92adfe5e4	net/art: allow non-pointers as values Values are still turned into pointers internally to maintain the invariants of strideTable, but from the user's perspective it's now possible to tbl.Insert(pfx, true) rather than tbl.Insert(pfx, ptr.To(true)). Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	623d72c83b	net/art: move child table pointers out of strideEntry In preparation for a different refactor, but incidentally also saves 10-25% memory on overall table size in benchmarks. Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	6afffece8a	net/art: use more intelligible, go-ish state tracking in table.Get Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	4f14ed2ad6	net/art: use encoding/binary for address bit twiddling Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	f1cd67488d	net/art: move slice closer to its use Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	44ad7b3746	net/art: factor out picking the right strideTable for addr family Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	125b982ba5	net/art: make Table.Get alloc-free Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	b76d8a88ae	net/art: document return value of strideTable.delete Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	b242e2c2cb	net/art: reword confusing function docstring Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	8478358d77	net/art: use "index", not "idx" in function names Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	de5c6ed4be	net/art: document valid values of strideTable.prefix Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	736a44264f	net/art: fix comment typo Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	1e6f0bb608	net/art: fix slowPrefixTable bugs found by fuzzing One is a straight "I forgot how to Go" bug, the others are semantic mismatches with the main implementation around masking the prefixes passed to insert/delete. Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	aaca911904	net/art: add another consistency test for insert/delete Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	b145a22f55	net/art: add more exhaustive table testing Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	9cc3f7a3d6	net/art: fix format of debug output Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	ac657caaf1	net/art: add debug hooks to strideTable Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	fcf4d044fa	net/art: implement path compression optimization Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	486195edf0	net/art: make each strideTable track the IP prefix it represents This is a prerequisite for path compression, so that insert/delete can determine when compression occurred. Updates #7781 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	45b5d0983c	net/art: fix running tests outside of CI Updates #7866 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
Brad Fitzpatrick	c889254b42	net/art: skip tests on CI for now To get the tree green again for other people. Updates #7866 Change-Id: Ibdad2e1408e5f0c97e49a148bfd77aad17c2c5e5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
David Anderson	a5fd51ebdc	net/art: disable the IPv6 100k routes benchmark. At the current unoptimized memory utilization of the various data structures, 100k IPv6 routes consumes in the ballpark of 3-4GiB, which risks OOMing our 386 test machine. Until we have the optimizations to (drastically) reduce that consumption, skip the test that bloats too much for 32-bit machines. Signed-off-by: David Anderson <danderson@tailscale.com>	2 years ago
David Anderson	a7c910e361	net/art: implement the Table type, a multi-level art route table. Updates #7781 │ sec/op │ TableInsertion/ipv4/10 1.562µ ± 2% TableInsertion/ipv4/100 2.398µ ± 5% TableInsertion/ipv4/1000 2.097µ ± 3% TableInsertion/ipv4/10000 2.756µ ± 4% TableInsertion/ipv4/100000 2.473µ ± 13% TableInsertion/ipv6/10 7.649µ ± 2% TableInsertion/ipv6/100 12.09µ ± 3% TableInsertion/ipv6/1000 14.84µ ± 5% TableInsertion/ipv6/10000 14.72µ ± 8% TableInsertion/ipv6/100000 13.23µ ± 41% TableDelete/ipv4/10 378.4n ± 5% TableDelete/ipv4/100 366.9n ± 3% TableDelete/ipv4/1000 418.6n ± 3% TableDelete/ipv4/10000 609.2n ± 11% TableDelete/ipv4/100000 679.2n ± 28% TableDelete/ipv6/10 504.2n ± 4% TableDelete/ipv6/100 959.5n ± 12% TableDelete/ipv6/1000 1.436µ ± 6% TableDelete/ipv6/10000 1.772µ ± 15% TableDelete/ipv6/100000 1.172µ ± 113% TableGet/ipv4/10 32.14n ± 11% TableGet/ipv4/100 38.58n ± 2% TableGet/ipv4/1000 45.03n ± 2% TableGet/ipv4/10000 52.90n ± 7% TableGet/ipv4/100000 135.2n ± 11% TableGet/ipv6/10 41.55n ± 1% TableGet/ipv6/100 44.78n ± 2% TableGet/ipv6/1000 49.03n ± 2% TableGet/ipv6/10000 65.38n ± 5% TableGet/ipv6/100000 525.0n ± 39% │ avg-B/op │ TableInsertion/ipv4/10 25.18Ki ± 0% TableInsertion/ipv4/100 17.63Ki ± 0% TableInsertion/ipv4/1000 14.14Ki ± 0% TableInsertion/ipv4/10000 12.92Ki ± 0% TableInsertion/ipv4/100000 11.13Ki ± 0% TableInsertion/ipv6/10 76.87Ki ± 0% TableInsertion/ipv6/100 98.33Ki ± 0% TableInsertion/ipv6/1000 91.44Ki ± 0% TableInsertion/ipv6/10000 90.39Ki ± 0% TableInsertion/ipv6/100000 87.19Ki ± 0% TableDelete/ipv4/10 3.230 ± 0% TableDelete/ipv4/100 4.020 ± 0% TableDelete/ipv4/1000 3.990 ± 0% TableDelete/ipv4/10000 4.000 ± 0% TableDelete/ipv4/100000 4.000 ± 0% TableDelete/ipv6/10 16.00 ± 0% TableDelete/ipv6/100 16.00 ± 0% TableDelete/ipv6/1000 16.00 ± 0% TableDelete/ipv6/10000 16.00 ± 0% TableDelete/ipv6/100000 16.00 ± 0% │ avg-allocs/op │ TableInsertion/ipv4/10 2.900 ± 0% TableInsertion/ipv4/100 2.330 ± 0% TableInsertion/ipv4/1000 2.070 ± 0% TableInsertion/ipv4/10000 1.980 ± 0% TableInsertion/ipv4/100000 1.840 ± 0% TableInsertion/ipv6/10 6.800 ± 0% TableInsertion/ipv6/100 8.420 ± 0% TableInsertion/ipv6/1000 7.900 ± 0% TableInsertion/ipv6/10000 7.820 ± 0% TableInsertion/ipv6/100000 7.580 ± 0% TableDelete/ipv4/10 1.000 ± 0% TableDelete/ipv4/100 1.000 ± 0% TableDelete/ipv4/1000 1.000 ± 0% TableDelete/ipv4/10000 1.000 ± 0% TableDelete/ipv4/100000 1.000 ± 0% TableDelete/ipv6/10 1.000 ± 0% TableDelete/ipv6/100 1.000 ± 0% TableDelete/ipv6/1000 1.000 ± 0% TableDelete/ipv6/10000 1.000 ± 0% TableDelete/ipv6/100000 1.000 ± 0% │ routes/s │ TableInsertion/ipv4/10 640.3k ± 2% TableInsertion/ipv4/100 417.1k ± 5% TableInsertion/ipv4/1000 477.0k ± 3% TableInsertion/ipv4/10000 362.8k ± 5% TableInsertion/ipv4/100000 404.5k ± 15% TableInsertion/ipv6/10 130.7k ± 1% TableInsertion/ipv6/100 82.69k ± 3% TableInsertion/ipv6/1000 67.37k ± 5% TableInsertion/ipv6/10000 67.93k ± 9% TableInsertion/ipv6/100000 75.63k ± 29% TableDelete/ipv4/10 2.642M ± 6% TableDelete/ipv4/100 2.726M ± 3% TableDelete/ipv4/1000 2.389M ± 3% TableDelete/ipv4/10000 1.641M ± 12% TableDelete/ipv4/100000 1.472M ± 27% TableDelete/ipv6/10 1.984M ± 4% TableDelete/ipv6/100 1.042M ± 11% TableDelete/ipv6/1000 696.5k ± 6% TableDelete/ipv6/10000 564.4k ± 13% TableDelete/ipv6/100000 853.6k ± 53% │ addrs/s │ TableGet/ipv4/10 31.11M ± 10% TableGet/ipv4/100 25.92M ± 2% TableGet/ipv4/1000 22.21M ± 2% TableGet/ipv4/10000 18.91M ± 8% TableGet/ipv4/100000 7.397M ± 12% TableGet/ipv6/10 24.07M ± 1% TableGet/ipv6/100 22.33M ± 2% TableGet/ipv6/1000 20.40M ± 2% TableGet/ipv6/10000 15.30M ± 5% TableGet/ipv6/100000 1.905M ± 28% │ B/op │ TableGet/ipv4/10 4.000 ± 0% TableGet/ipv4/100 4.000 ± 0% TableGet/ipv4/1000 4.000 ± 0% TableGet/ipv4/10000 4.000 ± 0% TableGet/ipv4/100000 4.000 ± 0% TableGet/ipv6/10 16.00 ± 0% TableGet/ipv6/100 16.00 ± 0% TableGet/ipv6/1000 16.00 ± 0% TableGet/ipv6/10000 16.00 ± 0% TableGet/ipv6/100000 16.00 ± 0% │ allocs/op │ TableGet/ipv4/10 1.000 ± 0% TableGet/ipv4/100 1.000 ± 0% TableGet/ipv4/1000 1.000 ± 0% TableGet/ipv4/10000 1.000 ± 0% TableGet/ipv4/100000 1.000 ± 0% TableGet/ipv6/10 1.000 ± 0% TableGet/ipv6/100 1.000 ± 0% TableGet/ipv6/1000 1.000 ± 0% TableGet/ipv6/10000 1.000 ± 0% TableGet/ipv6/100000 1.000 ± 0% Signed-off-by: David Anderson <danderson@tailscale.com>	2 years ago
David Anderson	4d1b3bc26f	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>	2 years ago

24 Commits (d73e923b73aa0ed38f8b688423df79b95b91298a)