mmap应用--调用mmap的常见接口和命令

一、 ls malloc和pthread_create
ls命令：
% time seconds usecs/call calls errors syscall

---

0.00 0.000000 0 7 read
0.00 0.000000 0 1 write
0.00 0.000000 0 12 close
0.00 0.000000 0 11 fstat
0.00 0.000000 0 18 mmap
0.00 0.000000 0 12 mprotect
0.00 0.000000 0 2 munmap
mmap(NULL, 1, PROT_READ|PROT_WRITE, MAP_PRIVATE, 3, 0) = 0x7f598d54c000
mmap(0x7f598d320000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f598d320000
munmap(0x7f598d536000, 91293) = 0