BList Benchmarks

Comparing Various Structures and Systems

Node size	std::list push_back 100,000,000	std::vector push_back 100,000,000	BList push_back 100,000,000	std::list insert 100,000	std::vector insert 100,000	BList insert 100,000
1	6.2	0.51	6.6	25.7	1.6	25.5
2			4.9			15.7
4			3.9			7.6
8			3.4			3.7
16			3.2			1.7
32			3.1			0.84
64			3.0			0.37
128			3.0			0.15
256			3.0			0.07
512			3.0			0.05

• std::list - 3 hours, 29 minutes (12,500 s)
• std::vector - 157 s
• std::set - 0.45 s
• BList size 256 - 18 s
• BList size 512 - 6.6 s
• BList size 1024 - 3.2 s
• BList size 2048 - 1.9 s
• BList size 4096 - 2.2 s
• BList size 8192 - 3.2 s

Detailed computer specs.

struct BNode
{
  BNode *next;
  BNode *prev;
  int count; // number of items currently in the node
  T values[Size];
  BNode() : next(0), prev(0), count(0) {}
};

where T = int and there may be padding in the struct.

Inserting 100,000 items into a BList of various sizes: (Asize is the number of elements per node, Nsize is sizeof(BNode))

Maya (i7-3770@3.4GHz)	Olga (i7-930@2.8GHz)	Veronica (i7-3517UE@2.1GHz)	Volper (AMD FX-8120@3.1GHz)
Asize: 1 Nsize: 24 Items: 100000 Nodes: 100000 Average items per node: 1 Node utilization: 100% Elapsed time: 25.11 secs ============================== Asize: 2 Nsize: 32 Items: 100000 Nodes: 61400 Average items per node: 1.629 Node utilization: 81.4% Elapsed time: 15.36 secs ============================== Asize: 4 Nsize: 40 Items: 100000 Nodes: 33250 Average items per node: 3.008 Node utilization: 75.2% Elapsed time: 9.32 secs ============================== Asize: 8 Nsize: 56 Items: 100000 Nodes: 17370 Average items per node: 5.757 Node utilization: 72% Elapsed time: 3.57 secs ============================== Asize: 16 Nsize: 88 Items: 100000 Nodes: 8856 Average items per node: 11.29 Node utilization: 70.6% Elapsed time: 1.7 secs ============================== Asize: 32 Nsize: 152 Items: 100000 Nodes: 4410 Average items per node: 22.68 Node utilization: 70.9% Elapsed time: 0.83 secs ============================== Asize: 64 Nsize: 280 Items: 100000 Nodes: 2220 Average items per node: 45.05 Node utilization: 70.4% Elapsed time: 0.36 secs ============================== Asize: 128 Nsize: 536 Items: 100000 Nodes: 1085 Average items per node: 92.17 Node utilization: 72% Elapsed time: 0.15 secs ============================== Asize: 256 Nsize: 1048 Items: 100000 Nodes: 523 Average items per node: 191.2 Node utilization: 74.7% Elapsed time: 0.07 secs ============================== Asize: 512 Nsize: 2072 Items: 100000 Nodes: 257 Average items per node: 389.1 Node utilization: 76% Elapsed time: 0.04 secs ============================== Asize: 1024 Nsize: 4120 Items: 100000 Nodes: 128 Average items per node: 781.2 Node utilization: 76.3% Elapsed time: 0.04 secs ============================== Asize: 2048 Nsize: 8216 Items: 100000 Nodes: 64 Average items per node: 1562 Node utilization: 76.3% Elapsed time: 0.07 secs ============================== Asize: 4096 Nsize: 16408 Items: 100000 Nodes: 32 Average items per node: 3125 Node utilization: 76.3% Elapsed time: 0.15 secs ==============================	Asize: 1 Nsize: 24 Items: 100000 Nodes: 100000 Average items per node: 1 Node utilization: 100% Elapsed time: 46.34 secs ============================== Asize: 2 Nsize: 32 Items: 100000 Nodes: 61400 Average items per node: 1.629 Node utilization: 81.4% Elapsed time: 27.56 secs ============================== Asize: 4 Nsize: 40 Items: 100000 Nodes: 33250 Average items per node: 3.008 Node utilization: 75.2% Elapsed time: 13.21 secs ============================== Asize: 8 Nsize: 56 Items: 100000 Nodes: 17370 Average items per node: 5.757 Node utilization: 72% Elapsed time: 6.42 secs ============================== Asize: 16 Nsize: 88 Items: 100000 Nodes: 8856 Average items per node: 11.29 Node utilization: 70.6% Elapsed time: 2.8 secs ============================== Asize: 32 Nsize: 152 Items: 100000 Nodes: 4410 Average items per node: 22.68 Node utilization: 70.9% Elapsed time: 1.41 secs ============================== Asize: 64 Nsize: 280 Items: 100000 Nodes: 2220 Average items per node: 45.05 Node utilization: 70.4% Elapsed time: 0.53 secs ============================== Asize: 128 Nsize: 536 Items: 100000 Nodes: 1085 Average items per node: 92.17 Node utilization: 72% Elapsed time: 0.19 secs ============================== Asize: 256 Nsize: 1048 Items: 100000 Nodes: 523 Average items per node: 191.2 Node utilization: 74.7% Elapsed time: 0.1 secs ============================== Asize: 512 Nsize: 2072 Items: 100000 Nodes: 257 Average items per node: 389.1 Node utilization: 76% Elapsed time: 0.06 secs ============================== Asize: 1024 Nsize: 4120 Items: 100000 Nodes: 128 Average items per node: 781.2 Node utilization: 76.3% Elapsed time: 0.08 secs ============================== Asize: 2048 Nsize: 8216 Items: 100000 Nodes: 64 Average items per node: 1562 Node utilization: 76.3% Elapsed time: 0.13 secs ============================== Asize: 4096 Nsize: 16408 Items: 100000 Nodes: 32 Average items per node: 3125 Node utilization: 76.3% Elapsed time: 0.25 secs ==============================	Asize: 1 Nsize: 24 Items: 100000 Nodes: 100000 Average items per node: 1 Node utilization: 100% Elapsed time: 40.92 secs ============================== Asize: 2 Nsize: 32 Items: 100000 Nodes: 61400 Average items per node: 1.629 Node utilization: 81.4% Elapsed time: 23.78 secs ============================== Asize: 4 Nsize: 40 Items: 100000 Nodes: 33250 Average items per node: 3.008 Node utilization: 75.2% Elapsed time: 10.21 secs ============================== Asize: 8 Nsize: 56 Items: 100000 Nodes: 17370 Average items per node: 5.757 Node utilization: 72% Elapsed time: 5.27 secs ============================== Asize: 16 Nsize: 88 Items: 100000 Nodes: 8856 Average items per node: 11.29 Node utilization: 70.6% Elapsed time: 2.39 secs ============================== Asize: 32 Nsize: 152 Items: 100000 Nodes: 4410 Average items per node: 22.68 Node utilization: 70.9% Elapsed time: 1.17 secs ============================== Asize: 64 Nsize: 280 Items: 100000 Nodes: 2220 Average items per node: 45.05 Node utilization: 70.4% Elapsed time: 0.5 secs ============================== Asize: 128 Nsize: 536 Items: 100000 Nodes: 1085 Average items per node: 92.17 Node utilization: 72% Elapsed time: 0.21 secs ============================== Asize: 256 Nsize: 1048 Items: 100000 Nodes: 523 Average items per node: 191.2 Node utilization: 74.7% Elapsed time: 0.09 secs ============================== Asize: 512 Nsize: 2072 Items: 100000 Nodes: 257 Average items per node: 389.1 Node utilization: 76% Elapsed time: 0.07 secs ============================== Asize: 1024 Nsize: 4120 Items: 100000 Nodes: 128 Average items per node: 781.2 Node utilization: 76.3% Elapsed time: 0.06 secs ============================== Asize: 2048 Nsize: 8216 Items: 100000 Nodes: 64 Average items per node: 1562 Node utilization: 76.3% Elapsed time: 0.12 secs ============================== Asize: 4096 Nsize: 16408 Items: 100000 Nodes: 32 Average items per node: 3125 Node utilization: 76.3% Elapsed time: 0.23 secs ==============================	Asize: 1 Nsize: 24 Items: 100000 Nodes: 100000 Average items per node: 1 Node utilization: 100% Elapsed time: 38.2 secs ============================== Asize: 2 Nsize: 32 Items: 100000 Nodes: 61400 Average items per node: 1.629 Node utilization: 81.4% Elapsed time: 21.67 secs ============================== Asize: 4 Nsize: 40 Items: 100000 Nodes: 33250 Average items per node: 3.008 Node utilization: 75.2% Elapsed time: 9.24 secs ============================== Asize: 8 Nsize: 56 Items: 100000 Nodes: 17370 Average items per node: 5.757 Node utilization: 72% Elapsed time: 4.44 secs ============================== Asize: 16 Nsize: 88 Items: 100000 Nodes: 8856 Average items per node: 11.29 Node utilization: 70.6% Elapsed time: 2.46 secs ============================== Asize: 32 Nsize: 152 Items: 100000 Nodes: 4410 Average items per node: 22.68 Node utilization: 70.9% Elapsed time: 1.22 secs ============================== Asize: 64 Nsize: 280 Items: 100000 Nodes: 2220 Average items per node: 45.05 Node utilization: 70.4% Elapsed time: 0.6 secs ============================== Asize: 128 Nsize: 536 Items: 100000 Nodes: 1085 Average items per node: 92.17 Node utilization: 72% Elapsed time: 0.3 secs ============================== Asize: 256 Nsize: 1048 Items: 100000 Nodes: 523 Average items per node: 191.2 Node utilization: 74.7% Elapsed time: 0.16 secs ============================== Asize: 512 Nsize: 2072 Items: 100000 Nodes: 257 Average items per node: 389.1 Node utilization: 76% Elapsed time: 0.1 secs ============================== Asize: 1024 Nsize: 4120 Items: 100000 Nodes: 128 Average items per node: 781.2 Node utilization: 76.3% Elapsed time: 0.1 secs ============================== Asize: 2048 Nsize: 8216 Items: 100000 Nodes: 64 Average items per node: 1562 Node utilization: 76.3% Elapsed time: 0.15 secs ============================== Asize: 4096 Nsize: 16408 Items: 100000 Nodes: 32 Average items per node: 3125 Node utilization: 76.3% Elapsed time: 0.27 secs ==============================