int
main (int argc,
char *argv[])
{
guint64 block_size = 512, area_size = 1024 * 1024, n_blocks, repeats = 1000000;
if (argc > 1)
block_size = parse_memsize (argv[1]);
else
{
usage();
block_size = 512;
}
if (argc > 2)
area_size = parse_memsize (argv[2]);
if (argc > 3)
repeats = parse_memsize (argv[3]);
if (argc > 4)
g_slice_set_config (G_SLICE_CONFIG_COLOR_INCREMENT, parse_memsize (argv[4]));
/* figure number of blocks from block and area size.
* divide area by 3 because touch_mem() allocates 3 areas
*/
n_blocks = area_size / 3 / ALIGN (block_size, sizeof (gsize) * 2);
/* basic sanity checks */
if (!block_size || !n_blocks || block_size >= area_size)
{
g_printerr ("Invalid arguments: block-size=%" G_GUINT64_FORMAT " memory-size=%" G_GUINT64_FORMAT "\n", block_size, area_size);
usage();
return 1;
}
g_printerr ("Will allocate and touch %" G_GUINT64_FORMAT " blocks of %" G_GUINT64_FORMAT " bytes (= %" G_GUINT64_FORMAT " bytes) %" G_GUINT64_FORMAT " times with color increment: 0x%08" G_GINT64_MODIFIER "x\n",
n_blocks, block_size, n_blocks * block_size, repeats,
(guint64)g_slice_get_config (G_SLICE_CONFIG_COLOR_INCREMENT));
touch_mem (block_size, n_blocks, repeats);
return 0;
}
int
main (int argc,
char *argv[])
{
guint seed32, *seedp = NULL;
gboolean ccounters = FALSE, use_memchunks = FALSE;
guint n_threads = 1;
const gchar *mode = "slab allocator + magazine cache", *emode = " ";
if (argc > 1)
n_threads = g_ascii_strtoull (argv[1], NULL, 10);
if (argc > 2)
{
guint i, l = strlen (argv[2]);
for (i = 0; i < l; i++)
switch (argv[2][i])
{
case 'G': /* GLib mode */
g_slice_set_config (G_SLICE_CONFIG_ALWAYS_MALLOC, FALSE);
g_slice_set_config (G_SLICE_CONFIG_BYPASS_MAGAZINES, FALSE);
mode = "slab allocator + magazine cache";
break;
case 'S': /* slab mode */
g_slice_set_config (G_SLICE_CONFIG_ALWAYS_MALLOC, FALSE);
g_slice_set_config (G_SLICE_CONFIG_BYPASS_MAGAZINES, TRUE);
mode = "slab allocator";
break;
case 'M': /* malloc mode */
g_slice_set_config (G_SLICE_CONFIG_ALWAYS_MALLOC, TRUE);
mode = "system malloc";
break;
case 'O': /* old memchunks */
use_memchunks = TRUE;
mode = "old memchunks";
break;
case 'f': /* eager freeing */
g_slice_set_config (G_SLICE_CONFIG_WORKING_SET_MSECS, 0);
clean_memchunks = TRUE;
emode = " with eager freeing";
break;
case 'c': /* print contention counters */
ccounters = TRUE;
break;
case '~':
want_corruption = TRUE; /* force occasional corruption */
break;
default:
usage();
return 1;
}
}
if (argc > 3)
prime_size = g_ascii_strtoull (argv[3], NULL, 10);
if (argc > 4)
{
seed32 = g_ascii_strtoull (argv[4], NULL, 10);
seedp = &seed32;
}
if (argc <= 1)
usage();
{
gchar strseed[64] = "<random>";
GThread **threads;
guint i;
if (seedp)
g_snprintf (strseed, 64, "%u", *seedp);
g_print ("Starting %d threads allocating random blocks <= %u bytes with seed=%s using %s%s\n", n_threads, prime_size, strseed, mode, emode);
threads = g_alloca (sizeof(GThread*) * n_threads);
if (!use_memchunks)
for (i = 0; i < n_threads; i++)
threads[i] = g_thread_create (test_sliced_mem_thread, seedp, TRUE, NULL);
else
{
for (i = 0; i < n_threads; i++)
threads[i] = g_thread_create (test_memchunk_thread, seedp, TRUE, NULL);
}
for (i = 0; i < n_threads; i++)
g_thread_join (threads[i]);
if (ccounters)
{
guint n, n_chunks = g_slice_get_config (G_SLICE_CONFIG_CHUNK_SIZES);
g_print (" ChunkSize | MagazineSize | Contention\n");
for (i = 0; i < n_chunks; i++)
{
gint64 *vals = g_slice_get_config_state (G_SLICE_CONFIG_CONTENTION_COUNTER, i, &n);
g_print (" %9" G_GINT64_FORMAT " | %9" G_GINT64_FORMAT " | %9" G_GINT64_FORMAT "\n", vals[0], vals[2], vals[1]);
g_free (vals);
}
}
else
g_print ("Done.\n");
return 0;
}
}