我找到了这篇关于std::vector::push_back效率的文章，相关代码可以在这里找到。我自己尝试了一下，我得到了一个illegal instruction (core dumped), gdb指示错误发生在第37行。
我使用gcc 4.7.2进行编译，在计算机上使用:
$ sudo dmidecode -t processor
# dmidecode 2.11
SMBIOS 2.5 present.
Handle 0x0400, DMI type 4, 40 bytes
Processor Information
Socket Designation: CPU
Type: Central Processor
Family: Core 2 Duo
Manufacturer: Intel
ID: 7A 06 01 00 FF FB EB BF
Signature: Type 0, Family 6, Model 23, Stepping 10
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Not Specified
Voltage: 1.2 V
External Clock: 1333 MHz
Max Speed: 5200 MHz
Current Speed: 3000 MHz
Status: Populated, Enabled
Upgrade: Socket LGA775
L1 Cache Handle: 0x0700
L2 Cache Handle: 0x0701
L3 Cache Handle: Not Provided
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 2
Core Enabled: 2
Thread Count: 2
Characteristics:
64-bit capable
这里有什么问题?我怎样才能使这个代码工作?我也尝试了icpc 13.1.0，但这也失败了。
编辑:我使用Ubuntu 12.10 64位。
您的CPU不支持RDTSCP指令。这是一条酷睿i7指令，而你的处理器是较早一代的(Merom-L)。
您应该能够使用RDTSC代替。例如，参见"rdtscp, rdtsc: memory和cpuid/rdtsc之间的差异?"