ベンチマーク2回目 malloc VS jemalloc

Elapesed time: 3105.806184843 (sec)
-----------------------------------------------------------
benchmark results:
name	ruby 1.9.1p378 (2010-01-10 revision 26273) [x86_64-linux]	ruby 1.9.1p378 (2010-01-10 revision 26273) [x86_64-linux]
app_answer	0.862	2.191
app_erb	7.567	5.904
app_factorial	1.965	5.285
app_fib	7.093	5.030
app_mandelbrot	2.812	2.963
app_pentomino	153.422	150.046
app_raise	4.875	4.524
app_strconcat	4.380	4.712
app_tak	7.571	7.728
app_tarai	6.142	6.633
app_uri	9.396	9.718
io_file_create	1.858	2.019
io_file_read	5.921	2.699
io_file_write	1.013	1.220
loop_for	9.812	9.335
loop_generator	5.297	4.949
loop_times	8.255	8.621
loop_whileloop	4.390	4.720
loop_whileloop2	1.037	1.221
so_ackermann	6.196	6.538
so_array	10.047	10.860
so_binary_trees	3.726	3.797
so_concatenate	3.173	3.899
so_count_words	3.392	4.455
so_exception	8.300	8.489
so_fannkuch	267.730	208.352
so_fasta	24.200	24.059
so_k_nucleotide	14.563	15.868
so_lists	2.693	2.835
so_mandelbrot	99.063	98.057
so_matrix	3.140	3.345
so_meteor_contest	51.164	51.527
so_nbody	87.972	85.622
so_nested_loop	7.162	7.629
so_nsieve	30.722	26.895
so_nsieve_bits	26.935	27.205
so_object	8.179	7.800
so_partial_sums	122.498	114.098
so_pidigits	10.239	34.625
so_random	4.921	5.264
so_reverse_complement	42.596	45.338
so_sieve	0.785	0.960
so_spectralnorm	52.789	54.617
vm1_block*	13.917	13.916
vm1_const*	4.639	4.362
vm1_ensure*	3.947	3.500
vm1_ivar*	8.365	10.955
vm1_ivar_set*	10.752	10.859
vm1_length*	6.272	6.082
vm1_neq*	5.168	5.016
vm1_not*	7.459	3.690
vm1_rescue*	5.138	1.690
vm1_simplereturn*	9.727	9.084
vm1_swap*	5.031	6.276
vm2_array*	6.133	6.604
vm2_case*	2.216	1.474
vm2_eval*	170.224	150.754
vm2_method*	12.736	12.119
vm2_mutex*	7.808	8.052
vm2_poly_method*	16.222	16.744
vm2_poly_method_ov*	2.146	2.139
vm2_proc*	3.948	5.326
vm2_regexp*	14.492	13.739
vm2_send*	1.742	1.866
vm2_super*	3.576	3.603
vm2_unif1*	1.889	1.920
vm2_zsuper*	3.531	3.498
vm3_gc	23.855	23.886
vm3_thread_create_join	31.141	33.320
vm3_thread_mutex	2.481	2.517