bitmapgc_benchmark.txt

benchmark results:
minimum results in each 5 measurements.
name    ruby 2.0.0dev (2012-01-05 trunk 34217) [i386-mingw32]   ruby 2.0.0dev (2012-01-05 bitmapgc 34217) [i386-mingw32]        average difference
app_answer              0.344   0.234   -0.087
app_erb                 18.516  2.812   -15.666
app_factorial           5.156   5.250   -0.162
app_fib                 1.438   1.312   -0.109
app_mandelbrot          4.734   16.641  12.147
app_pentomino           34.250  35.781  -204.197
app_raise               1.266   1.328   0.109
app_strconcat           3.359   4.187   0.966
app_tak                 1.797   1.688   0.228
app_tarai               1.453   1.359   -0.106
app_uri                 2.078   2.000   -0.237
io_file_create          26.250  26.203  -0.197
io_file_read            18.344  18.531  -0.109
io_file_write           17.172  17.109  -77.509
io_select               7.828   8.078   -0.041
io_select2              7.844   8.062   0.169
io_select3              0.281   0.172   -0.109
loop_for                2.953   2.922   -0.072
loop_generator          0.687   0.672   0.337
loop_times              2.812   2.750   0.056
loop_whileloop          1.328   1.266   -0.019
loop_whileloop2         0.484   0.391   0.025
so_ackermann            1.469   1.297   -0.666
so_array                2.625   2.531   5.841
so_binary_trees         1.031   1.109   0.075
so_concatenate          8.547   8.422   0.528
so_count_words          0.766   0.672   -0.103
so_exception            2.641   2.688   0.959
so_fannkuch             3.438   3.922   4.216
so_fasta                4.797   5.578   0.481
so_k_nucleotide         3.500   3.781   0.525
so_lists                1.828   1.703   -0.294
so_mandelbrot           12.578  23.109  -86.741
so_matrix               1.719   1.656   -0.347
so_meteor_contest       10.047  15.859  4.625
so_nbody                8.844   15.172  5.988
so_nested_loop          2.281   2.250   -0.041
so_nsieve               4.719   4.672   -2.219
so_nsieve_bits          5.844   44.984  44.734
so_object               2.078   2.172   0.200
so_partial_sums         12.953  22.219  10.031
so_pidigits             3.422   3.250   -0.469
so_random               2.547   4.016   1.412
so_reverse_complement   4.125   4.516   0.675
so_sieve                1.781   1.641   -0.138
so_spectralnorm         7.141   11.500  0.781
vm1_block*              2.844   2.750   -1.416
vm1_const*              0.656   1.047   0.331
vm1_ensure*             0.359   0.078   -0.197
vm1_ivar*               1.516   1.297   0.016
vm1_ivar_set*           0.969   0.906   -0.125
vm1_length*             1.375   1.219   -0.094
vm1_neq*                0.969   0.859   -32.616
vm1_not*                0.531   0.484   -0.100
vm1_rescue*             0.141   0.109   -0.091
vm1_simplereturn*       1.766   1.672   0.650
vm1_swap*               0.531   0.469   18.737
vm2_array*              2.750   3.359   -2.203
vm2_case*               0.250   0.219   -0.900
vm2_defined_method*     5.656   5.734   -16.456
vm2_eval*               418.672 41.922  -393.663
vm2_method*             2.750   2.797   -0.034
vm2_mutex*              1.891   1.891   -0.100
vm2_poly_method*        3.891   3.703   -80.228
vm2_poly_method_ov*     0.344   0.297   -0.125
vm2_proc*               0.984   0.906   -0.144
vm2_regexp*             2.781   3.391   0.503
vm2_send*               0.500   0.469   -0.106
vm2_super*              0.812   0.766   -0.147
vm2_unif1*              0.391   0.344   -0.137
vm2_zsuper*             0.828   0.797   -0.150
vm3_clearmethodcache    1.266   1.219   -0.234
vm3_gc                  2.406   2.859   0.353
vm_thread_alive_check1  0.656   0.531   -0.134
vm_thread_create_join   7.812   7.578   -0.647
vm_thread_mutex1        1.875   1.734   0.094
vm_thread_mutex2        1.922   1.844   -0.100
vm_thread_pass          0.797   0.797   -0.047
vm_thread_pipe          3.094   3.078   -0.019
-----------------------------------------------------------

mingw_aligned_malloc.patch

--- gc.c	Fri Jan  6 10:22:40 2012
+++ ../gc.c	Fri Jan  6 10:19:29 2012
@@ -1075,7 +1075,9 @@
 {
     void *res;
 
-#if _WIN32 || defined __CYGWIN__
+#if __MINGW32__
+    res = __mingw_aligned_malloc(aligned_size, aligned_size);
+#elif _WIN32 || defined __CYGWIN__
     res = _aligned_malloc(aligned_size, aligned_size);
 #else
 # if _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
@@ -1094,7 +1096,9 @@
 static void
 aligned_free(void *ptr)
 {
-#if _WIN32 || defined __CYGWIN__
+#if __MINGW32__
+    __mingw_aligned_free(ptr);
+#elif _WIN32 || defined __CYGWIN__
     _aligned_free(ptr);
 #else
     free(ptr);