ceph/src/isa-l/raid/xor_gen_perf.c

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  29
  30 #include<stdio.h>
  31 #include<stdint.h>
  32 #include<string.h>
  33 #include<stdlib.h>
  34 #include<sys/time.h>
  35 #include "raid.h"
  36 #include "test.h"
  37
  38 //#define CACHED_TEST
  39 #ifdef CACHED_TEST
  40 // Loop many times over same
  41 # define TEST_SOURCES 10
  42 # define TEST_LEN     8*1024
  43 # define TEST_LOOPS   2000000
  44 # define TEST_TYPE_STR "_warm"
  45 #else
  46 // Uncached test.  Pull from large mem base.
  47 # define TEST_SOURCES 10
  48 # define GT_L3_CACHE  32*1024*1024      /* some number > last level cache */
  49 # define TEST_LEN     GT_L3_CACHE / TEST_SOURCES
  50 # define TEST_LOOPS   1000
  51 # define TEST_TYPE_STR "_cold"
  52 #endif
  53
  54 #define TEST_MEM ((TEST_SOURCES + 1)*(TEST_LEN))
  55
  56 int main(int argc, char *argv[])
  57 {
  58         int i, ret, fail = 0;
  59         void **buffs;
  60         void *buff;
  61         struct perf start, stop;
  62
  63         printf("Test xor_gen_perf\n");
  64
  65         ret = posix_memalign((void **)&buff, 8, sizeof(int *) * (TEST_SOURCES + 6));
  66         if (ret) {
  67                 printf("alloc error: Fail");
  68                 return 1;
  69         }
  70         buffs = buff;
  71
  72         // Allocate the arrays
  73         for (i = 0; i < TEST_SOURCES + 1; i++) {
  74                 void *buf;
  75                 ret = posix_memalign(&buf, 64, TEST_LEN);
  76                 if (ret) {
  77                         printf("alloc error: Fail");
  78                         return 1;
  79                 }
  80                 buffs[i] = buf;
  81         }
  82
  83         // Setup data
  84         for (i = 0; i < TEST_SOURCES + 1; i++)
  85                 memset(buffs[i], 0, TEST_LEN);
  86
  87         // Warm up
  88         xor_gen(TEST_SOURCES + 1, TEST_LEN, buffs);
  89
  90         perf_start(&start);
  91         for (i = 0; i < TEST_LOOPS; i++)
  92                 xor_gen(TEST_SOURCES + 1, TEST_LEN, buffs);
  93         perf_stop(&stop);
  94         printf("xor_gen" TEST_TYPE_STR ": ");
  95         perf_print(stop, start, (long long)TEST_MEM * i);
  96
  97         return fail;
  98 }