Compare String function for the best Performance
All Test are made with a String of a 1 MB Size.
Every test function will add the String 50 times together and this will be repeated 20 times per function.
Test Environment
CPU: Intel i7 6900K @ 4.29 GHz
MEM: 64 GB
SSD: Samsung 960 Pro NVE
Windows 10 Pro x64 (latest updates @ 19.10.2017)
Test .Net Framework 4.0
| Function | avg MS | min MS | max MS | max Memory (MB) |
|---|---|---|---|---|
| String3 | 23 | 18 | 35 | 623.5 |
| String7 | 24 | 18 | 31 | 513.6 |
| String9 | 24 | 23 | 25 | 224.6 |
| String11 | 24 | 23 | 25 | 224.6 |
| String8 | 24 | 23 | 25 | 224,6 |
| String10 | 24 | 23 | 25 | 224.6 |
| String2 | 331 | 329 | 335 | 228.3 |
| String1 | 332 | 326 | 343 | 228.2 |
| String5 | 335 | 329 | 341 | 521.4 |
| String4 | 662 | 644 | 675 | 896.4 |
Test .Net Core 2.0
| Function | avg MS | min MS | max MS | max Memory (MB) |
|---|---|---|---|---|
| String10 | 24 | 22 | 24 | 221.3 |
| String8 | 24 | 22 | 24 | 221.3 |
| String11 | 24 | 23 | 24 | 221.3 |
| String9 | 24 | 23 | 27 | 221.3 |
| String7 | 24 | 18 | 37 | 618.2 |
| String3 | 24 | 18 | 37 | 618.2 |
| String5 | 332 | 326 | 339 | 516 |
| String1 | 335 | 326 | 339 | 222.7 |
| String2 | 337 | 332 | 339 | 222.8 |
| String4 | 667 | 663 | 674 | 516.5 |
Test Environment
CPU: Intel i5 4590 @ 3.30 GHz
MEM: 16 GB
SSD: Crucial SATA
Windows 7 Pro SP1 x64 (latest updates @ 23.10.2017)
Test .Net Framework 4.0
| Function | avg MS | min MS | max MS | max Memory (MB) |
|---|---|---|---|---|
| String9 | 28 | 21 | 39 | 426.8 |
| String8 | 28 | 24 | 33 | 310.6 |
| String3 | 29 | 20 | 43 | 520.6 |
| String7 | 29 | 20 | 42 | 603.6 |
| String10 | 29 | 21 | 42 | 426.8 |
| String11 | 29 | 21 | 41 | 426.8 |
| String2 | 381 | 367 | 416 | 512.8 |
| String5 | 382 | 357 | 445 | 895.1 |
| String1 | 385 | 371 | 418 | 1024 |
| String4 | 802 | 726 | 928 | 1228.8 |
Test .Net Core 2.0
| Function | avg MS | min MS | max MS | max Memory (MB) |
|---|---|---|---|---|
| String3 | 28 | 20 | 39 | 619.5 |
| String8 | 30 | 24 | 39 | 421.5 |
| String10 | 30 | 23 | 39 | 421.5 |
| String11 | 31 | 22 | 43 | 421.5 |
| String7 | 32 | 21 | 62 | 1024 |
| String9 | 33 | 23 | 49 | 421.5 |
| String1 | 376 | 361 | 426 | 421.5 |
| String2 | 381 | 365 | 415 | 507.1 |
| String5 | 403 | 370 | 447 | 1228.8 |
| String4 | 771 | 727 | 822 | 1228.8 |
*MS = Milliseconds
look in the Source Files to see how the string functions are implemented