1 /* GLIB sliced memory - fast threaded memory chunk allocator

     2  * Copyright (C) 2005 Tim Janik

     3  * Portions copyright (c) 2009 Nokia Corporation.  All rights reserved.

     4  * This library is free software; you can redistribute it and/or

     5  * modify it under the terms of the GNU Lesser General Public

     6  * License as published by the Free Software Foundation; either

     7  * version 2 of the License, or (at your option) any later version.

     8  *

     9  * This library is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    12  * Lesser General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU Lesser General Public

    15  * License along with this library; if not, write to the

    16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    17  * Boston, MA 02111-1307, USA.

    18  */

    19 #include <glib.h>

    20 #include <string.h>

    21 

    22 #define ALIGN(size, base)       ((base) * (gsize) (((size) + (base) - 1) / (base)))

    23 

    24 #ifdef __SYMBIAN32__

    25 #include "mrt2_glib2_test.h"

    26 #endif //__SYMBIAN32__

    27 

    28 static gdouble parse_memsize (const gchar *cstring);

    29 static void    usage         (void);

    30 

    31 static void

    32 fill_memory (guint **mem,

    33              guint   n,

    34              guint   val)

    35 {

    36   guint j, o = 0;

    37   for (j = 0; j < n; j++)

    38     mem[j][o] = val;

    39 }

    40 

    41 static guint64

    42 access_memory3 (guint  **mema,

    43                 guint  **memb,

    44                 guint  **memd,

    45                 guint    n,

    46                 guint64  repeats)

    47 {

    48   guint64 accu = 0, i, j;

    49   const guint o = 0;

    50   for (i = 0; i < repeats; i++)

    51     {

    52       for (j = 1; j < n; j += 2)

    53         memd[j][o] = mema[j][o] + memb[j][o];

    54     }

    55   for (i = 0; i < repeats; i++)

    56     for (j = 0; j < n; j++)

    57       accu += memd[j][o];

    58   return accu;

    59 }

    60 

    61 static void

    62 touch_mem (guint64 block_size,

    63            guint64 n_blocks,

    64            guint64 repeats)

    65 {

    66   guint64 j, accu, n = n_blocks;

    67   GTimer *timer;

    68   guint **memc;

    69   guint **memb;

    70   guint **mema = g_new (guint*, n);

    71   for (j = 0; j < n; j++)

    72     mema[j] = g_slice_alloc (block_size);

    73   memb = g_new (guint*, n);

    74   for (j = 0; j < n; j++)

    75     memb[j] = g_slice_alloc (block_size);

    76   memc = g_new (guint*, n);

    77   for (j = 0; j < n; j++)

    78     memc[j] = g_slice_alloc (block_size);

    79 

    80   timer = g_timer_new();

    81   fill_memory (mema, n, 2);

    82   fill_memory (memb, n, 3);

    83   fill_memory (memc, n, 4);

    84   access_memory3 (mema, memb, memc, n, 3);

    85   g_timer_start (timer);

    86   accu = access_memory3 (mema, memb, memc, n, repeats);

    87   g_timer_stop (timer);

    88 

    89   g_print ("Access-time = %fs\n", g_timer_elapsed (timer, NULL));

    90   g_assert (accu / repeats == (2 + 3) * n / 2 + 4 * n / 2);

    91 

    92   for (j = 0; j < n; j++)

    93     {

    94       g_slice_free1 (block_size, mema[j]);

    95       g_slice_free1 (block_size, memb[j]);

    96       g_slice_free1 (block_size, memc[j]);

    97     }

    98   g_timer_destroy (timer);

    99   g_free (mema);

   100   g_free (memb);

   101   g_free (memc);

   102 }

   103 

   104 static void

   105 usage (void)

   106 {

   107   g_print ("Usage: slice-color <block-size> [memory-size] [repeats] [colorization]\n");

   108 }

   109 

   110 int

   111 main (int   argc,

   112       char *argv[])

   113 {

   114   guint64 block_size = 512, area_size = 1024, n_blocks, repeats = 10;

   115 

   116   #ifdef __SYMBIAN32__

   117   g_log_set_handler (NULL,  G_LOG_FLAG_FATAL| G_LOG_FLAG_RECURSION | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_MESSAGE | G_LOG_LEVEL_INFO | G_LOG_LEVEL_DEBUG, &mrtLogHandler, NULL);

   118   g_set_print_handler(mrtPrintHandler);

   119   #endif /*__SYMBIAN32__*/

   120   

   121   if (argc > 1)

   122     block_size = parse_memsize (argv[1]);

   123   else

   124     {

   125       usage();

   126       block_size = 512;

   127     }

   128   if (argc > 2)

   129     area_size = parse_memsize (argv[2]);

   130   if (argc > 3)

   131     repeats = parse_memsize (argv[3]);

   132   if (argc > 4)

   133     g_slice_set_config (G_SLICE_CONFIG_COLOR_INCREMENT, parse_memsize (argv[4]));

   134 

   135   /* figure number of blocks from block and area size.

   136    * divide area by 3 because touch_mem() allocates 3 areas

   137    */

   138   n_blocks = area_size / 3 / ALIGN (block_size, sizeof (gsize) * 2);

   139 

   140   /* basic sanity checks */

   141   if (!block_size || !n_blocks || block_size >= area_size)

   142     {

   143       g_printerr ("Invalid arguments: block-size=%llu memory-size=%llu\n", block_size, area_size);

   144       usage();

   145       return 1;

   146     }

   147 

   148   g_print ("Will allocate and touch %llu blocks of %llu bytes (= %llu bytes) %llu times with color increment: 0x%08llx\n",

   149               n_blocks, block_size, n_blocks * block_size, repeats, g_slice_get_config (G_SLICE_CONFIG_COLOR_INCREMENT));

   150   touch_mem (block_size, n_blocks, repeats);

   151   

   152   

   153   #ifdef __SYMBIAN32__

   154   testResultXml("slice-color");

   155   #endif //__SYMBIAN32__

   156   

   157   

   158   

   159   return 0;

   160 }

   161 

   162 static gdouble

   163 parse_memsize (const gchar *cstring)

   164 {

   165   gchar *mem = g_strdup (cstring);

   166   gchar *string = g_strstrip (mem);

   167   guint l = strlen (string);

   168   gdouble f = 0;

   169   gchar *derr = NULL;

   170   gdouble msize;

   171 

   172   switch (l ? string[l - 1] : 0)

   173     {

   174     case 'k':   f = 1000;               break;

   175     case 'K':   f = 1024;               break;

   176     case 'm':   f = 1000000;            break;

   177     case 'M':   f = 1024 * 1024;        break;

   178     case 'g':   f = 1000000000;         break;

   179     case 'G':   f = 1024 * 1024 * 1024; break;

   180     }

   181   if (f)

   182     string[l - 1] = 0;

   183   msize = g_ascii_strtod (string, &derr);

   184   g_free (mem);

   185 /*  

   186   if (derr && *derr)

   187     {

   188       g_printerr ("failed to parse number at: %s\n", derr);

   189       msize = 0;

   190     }*/

   191   if (f)

   192     msize *= f;

   193   return msize;

   194 }