|
BUFSIZE |
TIMECOST |
|
1 |
real 0m38.909s user 0m5.960s sys 0m32.888s |
| 2 | real 0m20.015s user 0m2.927s sys 0m17.063s |
|
4 |
real 0m11.065s
user 0m1.551s
sys 0m9.491s |
|
8 |
real 0m5.160s
user 0m0.766s
sys 0m4.390s |
|
16 |
real 0m2.670s
user 0m0.360s
sys 0m2.310s |
|
32 |
real 0m1.306s
user 0m0.181s
sys 0m1.124s |
|
64 |
real 0m0.656s
user 0m0.094s
sys 0m0.561s |
|
128 |
real 0m0.367s
user 0m0.042s
sys 0m0.325s |
|
256 |
real 0m0.180s
user 0m0.026s
sys 0m0.153s |
|
512 |
real 0m0.093s
user 0m0.013s
sys 0m0.081s |
|
1024 |
real 0m0.056s
user 0m0.006s
sys 0m0.049s |
|
2048 |
real 0m0.035s
user 0m0.002s
sys 0m0.033s |
|
4096 |
real 0m0.025s
user 0m0.001s
sys 0m0.023s |
|
8192 |
real 0m0.022s
user 0m0.002s
sys 0m0.019s |
|
16384 |
real 0m0.020s
user 0m0.003s
sys 0m0.016s |
| 实现方式 |
timecost |
|
raw_input |
real 0m0.493s
user 0m0.420s
sys 0m0.066s |
| sys.stdin.read() |
real 0m0.102s
user 0m0.013s
sys 0m0.089s |
|
sys.stdin.readlines() |
real 0m0.258s
user 0m0.088s
sys 0m0.148s
|
原文：http://www.cnblogs.com/librasz/p/3600810.html