httpparsers

简介：

http11_parser1.c : https://github.com/puma/puma/blob/master/ext%2Fpuma_http11
http11_parser2.c : 我自己使用Ubuntu 14.04 LTS的官方仓库安装的Ragel State Machine Compiler version 6.8生成的C文件
http_parser.c : Node.JS的parser（源自Nginx）

测试机器：

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2407 0 @ 2.20GHz
stepping : 7
microcode : 0x70b
cpu MHz : 1200.000
cache size : 10240 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips : 4389.40
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual

测试结果：

root@ubuntu:/opt/fastmedia/jk# time ./a.out 3000000 nginx
text nginx 3000000

real 0m4.066s
user 0m4.066s
sys 0m0.003s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 3000000 nginx
text nginx 3000000

real 0m4.065s
user 0m4.065s
sys 0m0.003s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 3000000 nginx
text nginx 3000000

real 0m4.064s
user 0m4.064s
sys 0m0.003s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 3000000 puma
text puma 3000000

real 0m3.215s
user 0m3.215s
sys 0m0.002s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 3000000 puma
text puma 3000000

real 0m3.215s
user 0m3.215s
sys 0m0.002s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 3000000 puma
text puma 3000000

real 0m3.217s
user 0m3.216s
sys 0m0.002s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 5000000 puma
text puma 5000000

real 0m5.359s
user 0m5.359s
sys 0m0.003s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 5000000 puma
text puma 5000000

real 0m5.361s
user 0m5.361s
sys 0m0.003s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 5000000 nginx
text nginx 5000000

real 0m6.780s
user 0m6.779s
sys 0m0.005s
root@ubuntu:/opt/fastmedia/jk# time ./a.out 5000000 nginx
text nginx 5000000

real 0m6.778s
user 0m6.778s
sys 0m0.004s