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Implemented "cache" feature. Speed improvements 39%.

shell> cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 8
model name      : mobile AMD Athlon(tm) XP-M (LV) 1500+
stepping        : 1
cpu MHz         : 1327.242
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips        : 2621.44

shell> wc calibration.log
  107305   985123 13649750 calibration.log

Cache size | processing time
         1 | 212.03s user 9.16s system 31% cpu 11:45.33 total
        10 |  89.41s user 1.48s system 20% cpu  7:13.83 total
       100 |  78.15s user 0.85s system 21% cpu  6:04.17 total
      1000 |  79.84s user 0.71s system 21% cpu  6:10.34 total

255 lines per second inserted