gistfile1.txt

% time ./miniruby -e'a=100;i=0;while i<0xffffff;i+=1;a*=557;a+=2;a%=100000;end'
./miniruby -e'a=100;i=0;while i<0xffffff;i+=1;a*=557;a+=2;a%=100000;end'  2.64s user 0.01s system 99% cpu 2.649 total
% ruby -e'puts RubyVM::InstructionSequence.compile(%q{a=100;i=0;while i<0xffffff;i+=1;a*=557;a+=2;a%=
100000;end}).disasm'
== disasm: #<ISeq:<compiled>@<compiled>>================================
== catch table
| catch type: break  st: 0015 ed: 0060 sp: 0000 cont: 0060
| catch type: next   st: 0015 ed: 0060 sp: 0000 cont: 0012
| catch type: redo   st: 0015 ed: 0060 sp: 0000 cont: 0015
|------------------------------------------------------------------------
  cal table (size: 3, argc: 0 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 3] a          [ 2] i
0000 trace            1                                               (   1)
0002 putobject        100
0004 setlocal_OP__WC__0 3
0006 putobject_OP_INT2FIX_O_0_C_
0007 setlocal_OP__WC__0 2
0009 jump             50
0011 putnil
0012 pop
0013 jump             50
0015 getlocal_OP__WC__0 2
0017 putobject_OP_INT2FIX_O_1_C_
0018 opt_plus         <callinfo!mid:+, argc:1, ARGS_SIMPLE>, <callcache>
0021 setlocal_OP__WC__0 2
0023 getlocal_OP__WC__0 3
0025 putobject        557
0027 opt_mult         <callinfo!mid:*, argc:1, ARGS_SIMPLE>, <callcache>
0030 setlocal_OP__WC__0 3
0032 getlocal_OP__WC__0 3
0034 putobject        2
0036 opt_plus         <callinfo!mid:+, argc:1, ARGS_SIMPLE>, <callcache>
0039 setlocal_OP__WC__0 3
0041 getlocal_OP__WC__0 3
0043 putobject        100000
0045 opt_mod          <callinfo!mid:%, argc:1, ARGS_SIMPLE>, <callcache>
0048 setlocal_OP__WC__0 3
0050 getlocal_OP__WC__0 2
0052 putobject        16777215
0054 opt_lt           <callinfo!mid:<, argc:1, ARGS_SIMPLE>, <callcache>
0057 branchif         15
0059 putnil
0060 leave
% time ./miniruby -e'a=100;i=0;while i<0xffffff;i+=1;a=(a*557+2)%100000;end'
./miniruby -e'a=100;i=0;while i<0xffffff;i+=1;a=(a*557+2)%100000;end'  1.32s user 0.00s system 99% cpu 1.325 total
% ruby -e'puts RubyVM::InstructionSequence.compile(%q{a=100;i=0;while i<0xffffff;i+=1;a=(a*557+2)%100000;end}).disasm'
== disasm: #<ISeq:<compiled>@<compiled>>================================
== catch table
| catch type: break  st: 0015 ed: 0052 sp: 0000 cont: 0052
| catch type: next   st: 0015 ed: 0052 sp: 0000 cont: 0012
| catch type: redo   st: 0015 ed: 0052 sp: 0000 cont: 0015
|------------------------------------------------------------------------
local table (size: 3, argc: 0 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 3] a          [ 2] i
0000 trace            1                                               (   1)
0002 putobject        100
0004 setlocal_OP__WC__0 3
0006 putobject_OP_INT2FIX_O_0_C_
0007 setlocal_OP__WC__0 2
0009 jump             42
0011 putnil
0012 pop
0013 jump             42
0015 getlocal_OP__WC__0 2
0017 putobject_OP_INT2FIX_O_1_C_
0018 opt_plus         <callinfo!mid:+, argc:1, ARGS_SIMPLE>, <callcache>
0021 setlocal_OP__WC__0 2
0023 getlocal_OP__WC__0 3
0025 putobject        557
0027 opt_mult         <callinfo!mid:*, argc:1, ARGS_SIMPLE>, <callcache>
0030 putobject        2
0032 opt_plus         <callinfo!mid:+, argc:1, ARGS_SIMPLE>, <callcache>
0035 putobject        100000
0037 opt_mod          <callinfo!mid:%, argc:1, ARGS_SIMPLE>, <callcache>
0040 setlocal_OP__WC__0 3
0042 getlocal_OP__WC__0 2
0044 putobject        16777215
0046 opt_lt           <callinfo!mid:<, argc:1, ARGS_SIMPLE>, <callcache>
0049 branchif         15
0051 putnil
0052 leave