$ 7zr b

7-Zip (A) 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18
p7zip Version 9.20 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,1 CPU)

RAM size:    2017 MB,  # CPU hardware threads:   1
RAM usage:    419 MB,  # Benchmark threads:      1

Dict        Compressing          |        Decompressing
      Speed Usage    R/U Rating  |    Speed Usage    R/U Rating
       KB/s     %   MIPS   MIPS  |     KB/s     %   MIPS   MIPS

22:    1085   100   1056   1056  |    11064   100    999    999
23:    1041   100   1060   1060  |    10958   100   1004   1003
24:     988   100   1063   1062  |    10836   100   1005   1005
25:     936   100   1070   1069  |    10693   100   1007   1005
----------------------------------------------------------------
Avr:          100   1062   1062               100   1004   1003
Tot:          100   1033   1032

$ cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 2
model name	: Intel(R) Pentium(R) 4 CPU 2.40GHz
stepping	: 9
microcode	: 0x2e
cpu MHz		: 2392.222
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
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 up pebs bts cid xtpr
bogomips	: 4784.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 32 bits virtual
power management: