icuSources/test/perf/leperf/letrperf.cpp

   1 /***************************************************************************
   2 *
   3 *   Copyright (C) 2013, International Business Machines
   4 *   Corporation and others.  All Rights Reserved.
   5 *
   6 ************************************************************************/
   7 /**
   8  * Usage:
   9  * build against a configured (but not built) ICU.
  10  * example: cc -O2 test_LETableReference.cpp -I. -I/xsrl/II/include -I/xsrl/E/icu/source/tools/ctestfw
  11  */
  12 #include "unicode/utimer.h"
  13 #include "LETableReference.h"
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16
  17 #define ITEM_COUNT 10000
  18
  19 long *items = 0;
  20
  21 struct OneObject {
  22   long items[ITEM_COUNT];
  23 };
  24
  25 struct Long {
  26   long v;
  27 };
  28
  29 struct CompObject {
  30   Long items[ITEM_COUNT];
  31 };
  32
  33
  34 void time_null(void * /*ref*/) {
  35   for(int i=0;i<ITEM_COUNT;i++) {
  36     if(items[i]==2) {
  37       return;
  38     }
  39   }
  40   puts("error");
  41   abort();
  42 }
  43
  44 void time_obj(void * ref) {
  45   OneObject &obj = *((OneObject*)ref);
  46   for(int i=0;i<ITEM_COUNT;i++) {
  47     if(obj.items[i]==2) {
  48       return;
  49     }
  50   }
  51   puts("error");
  52   abort();
  53 }
  54 void time_obj2(void * ref) {
  55   long *items2 = ((OneObject*)ref)->items;
  56   for(int i=0;i<ITEM_COUNT;i++) {
  57     if(items2[i]==2) {
  58       return;
  59     }
  60   }
  61   puts("error");
  62   abort();
  63 }
  64
  65 void time_letr1(void * ref) {
  66   OneObject &obj = *((OneObject*)ref);
  67   LETableReference data((const le_uint8*)ref, sizeof(OneObject));
  68   LEErrorCode success = LE_NO_ERROR;
  69
  70   LEReferenceTo<OneObject> stuff(data, success);
  71   if(LE_FAILURE(success)) {
  72     puts("failure");
  73     abort();
  74   }
  75   long *items2 = ((OneObject*)ref)->items;
  76   for(int i=0;i<ITEM_COUNT;i++) {
  77     if(items[i]==2) {
  78       return;
  79     }
  80   }
  81   puts("error");
  82   abort();
  83 }
  84
  85
  86 void time_letr2(void * ref) {
  87   OneObject &obj = *((OneObject*)ref);
  88   LETableReference data((const le_uint8*)ref, sizeof(OneObject));
  89   LEErrorCode success = LE_NO_ERROR;
  90
  91   long *items2 = ((OneObject*)ref)->items;
  92   for(int i=0;i<ITEM_COUNT;i++) {
  93     LEReferenceTo<OneObject> stuff(data, success);
  94     if(LE_FAILURE(success)) {
  95       puts("failure");
  96       abort();
  97     }
  98     if(items[i]==2) {
  99       return;
 100     }
 101   }
 102   puts("error");
 103   abort();
 104 }
 105
 106 static void time_letr3(void * ref) {
 107   LETableReference data((const le_uint8*)ref, sizeof(OneObject));
 108   LEErrorCode success = LE_NO_ERROR;
 109   LEReferenceTo<CompObject> comp(data, success);
 110   LEReferenceToArrayOf<Long> longs(comp, success, (size_t)0, ITEM_COUNT);
 111   if(LE_FAILURE(success)) {
 112     puts("failure");
 113     abort();
 114   }
 115
 116   for(int i=0;i<ITEM_COUNT;i++) {
 117     const Long &item = longs.getObject(i, success);
 118     if(LE_FAILURE(success)) {
 119       puts("failure");
 120       abort();
 121     }
 122     if(item.v==2) {
 123       return;
 124     }
 125   }
 126   puts("error");
 127   abort();
 128 }
 129
 130
 131 int main() {
 132   double runTime = 2.0;
 133   printf("Test of LETableReference<> timing. %.1fs per run.\n", runTime);
 134   items = new long[ITEM_COUNT];
 135   OneObject *oo = new OneObject();
 136   CompObject *oo2 = new CompObject();
 137   for(int i=0;i<ITEM_COUNT-1;i++) {
 138     items[i] = oo->items[i] = oo2->items[i].v = (i%1024)+3;
 139   }
 140   items[ITEM_COUNT-1] = oo->items[ITEM_COUNT-1] = oo2->items[ITEM_COUNT-1].v = 2; // last one
 141
 142   puts("will call once..");
 143   time_letr3((void*)oo2);
 144   puts("testing all..");
 145
 146   int32_t loopCount;
 147   double time_taken;
 148
 149 #define showTime(x,y)  printf("%s:\ttesting...\r",  #x);   fflush(stdout); \
 150   time_taken = utimer_loopUntilDone(runTime, &loopCount, x, y); \
 151   printf("%s:\t%.1fs\t#%d\t%.1f/s\n", #x, time_taken, loopCount, loopCount/(double)time_taken);
 152
 153   // clear out cache
 154   {
 155     double oldTime = runTime;
 156     runTime = 0.25;
 157     showTime(time_null, NULL);
 158     showTime(time_null, NULL);
 159     showTime(time_null, NULL);
 160     showTime(time_null, NULL);
 161     runTime = oldTime;
 162   }
 163   puts("-- ready to start --");
 164
 165
 166   showTime(time_null, NULL);
 167   showTime(time_obj, (void*)oo);
 168   showTime(time_obj2, (void*)oo);
 169   showTime(time_letr1, (void*)oo2);
 170   showTime(time_letr2, (void*)oo2);
 171   showTime(time_letr3, (void*)oo2);
 172   showTime(time_null, NULL);
 173
 174   delete [] items;
 175   delete oo;
 176   delete oo2;
 177 }