C++'s std::vector supports parallel reads. I was just curious to see if D's std.container.array.Array
supports parallel reads as well.
All the times are average taken with 10+ runs.
Memory measurement with grep VmRSS $(pgrep dmain)
Threads: 8
Gallery size: 2000000
Iterations: 200
- Processor: (Skylake) Intel(R) Core(TM) i7-6770HQ CPU @ 2.60GHz
- OS: Ubuntu 17.10 64 bit
| Compiler | g++ 7.2.0 | LDC 1.6.0 | DMD 2.077.1 | gdc 7.2.0 |
|---|---|---|---|---|
| Load time | 3.5 seconds | 1.4 seconds | 3.8 seconds | 1.7 seconds |
| Search time | 6.5 seconds | crash (6.9 seconds) | 275 seconds | 185 seconds |
| Memory | 5878132 kB | 5878072 kB | 5878136 kB | 5877944 kB |
Threads: 16
Gallery size: 2000000
Iterations: 200
- Processor: (Haswell) Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz
- OS: RHEL 7.3 64 bit
| Compiler | g++ 4.8.5 | LDC 1.6.0 | DMD 2.077.1 |
|---|---|---|---|
| Load time | 3.9 seconds | 2.1 seconds | 4.2 seconds |
| Search time | 4.7 seconds | crash (35 seconds) | 328 seconds |
| Memory |