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-rw-r--r--recipes/cpubench/files/openwrt_cpu_bench_v06.c227
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diff --git a/recipes/cpubench/files/openwrt_cpu_bench_v06.c b/recipes/cpubench/files/openwrt_cpu_bench_v06.c
new file mode 100644
index 0000000000..dfb05a8360
--- /dev/null
+++ b/recipes/cpubench/files/openwrt_cpu_bench_v06.c
@@ -0,0 +1,227 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+
+
+
+#define VERSION_STR "v0.6"
+
+// This is the overhead of calling gettimeofday() 2 times
+double overhead = -1;
+
+double begin_secs = 0;
+double real_get_seconds()
+{
+ struct timeval tv;
+ double total;
+
+ gettimeofday(&tv, NULL);
+ total = (double)tv.tv_sec;
+ total += ((double)tv.tv_usec)/(double)1000000.0;
+
+ //printf("Secs: %d / Usecs: %d / FSecs: %f\n", tv.tv_sec, tv.tv_usec, total);
+
+ return total;
+}
+double get_seconds()
+{
+ if (begin_secs == 0)
+ {
+ // First call
+ begin_secs = real_get_seconds();
+ }
+
+ return (real_get_seconds() - begin_secs);
+}
+
+
+double run_float_bench()
+{
+ double secs;
+ double begin = get_seconds();
+ int i;
+
+ double nb=0;
+ for (i=0;i<300000;i++)
+ {
+ nb *= i;
+ int n = i >> 10;
+ nb /= n;
+ }
+
+ double end = get_seconds();
+ secs = end-begin;
+ printf("Time to run float bench: %.2f[secs]\n", secs);
+
+ return secs;
+}
+
+
+double do_run_memory_bench()
+{
+ double begin, end;
+ int i;
+ int* buf;
+ int len, index;
+ double secs;
+
+ begin = get_seconds();
+
+ len = (1<<21)/sizeof(int); // 2Mb
+ buf = malloc(len*sizeof(int));
+
+ // Write to memory - sequential
+ for (i=0;i<len;i++)
+ {
+ buf[i] = i;
+ }
+
+ // Read memory - sequential
+ for (i=0;i<len;i++)
+ {
+ int a = buf[i];
+ }
+
+ // Read memory - random
+ for (i=0;i<len;i++)
+ {
+ index = (i*23)%(len/2);
+ int a = buf[index];
+ }
+
+ // Write memory - random
+ for (i=0;i<len;i++)
+ {
+ index = (i*23)%(len/2);
+ buf[index] = i;
+ }
+ free(buf);
+
+ end = get_seconds();
+ secs = (end-begin);
+
+ return secs;
+}
+
+double run_memory_bench()
+{
+ double secs = 0;
+ int i;
+
+ for (i=0;i<10;i++)
+ {
+ secs += do_run_memory_bench();
+ }
+
+ printf("Time to run memory bench: %.2f[secs]\n", secs);
+
+ return secs;
+}
+
+#define NBD 9009
+double run_compute_e()
+{
+ double begin, end;
+ double secs;
+
+ begin = get_seconds();
+
+ int N=NBD, n=N, a[NBD],x;
+ while(--n)
+ {
+ a[n]=1+1/n;
+ }
+
+ for(;N>9;)
+ {
+ for(n=N--;--n; a[n]=x%n, x=10*a[n-1]+x/n)
+ {
+ }
+ }
+
+ end = get_seconds();
+
+ secs = (end-begin);
+ printf("Time to run computation of e (%d digits): %.2f[secs]\n", NBD, secs);
+
+ return secs;
+}
+
+double run_compute_pi()
+{
+ double begin, end;
+ double secs;
+ int i;
+
+ begin = get_seconds();
+ //printf("Begin: %f\n", begin);
+
+ for (i=0;i<10;i++)
+ {
+ int a=10000,b=0,c=8400,d=0,e=0,f[8401],g=0;
+
+ //printf("i:%d\n", i);
+ for(;b-c;)
+ {
+ f[b++]=a/5;
+ }
+
+ for(;d=0,g=c*2;c-=14,e=d%a)
+ {
+ for(b=c;d+=f[b]*a,f[b]=d%--g,d/=g--,--b;d*=b)
+ {
+ }
+ }
+ //printf("Mid: %lld\n", (get_seconds()-end));
+ }
+
+ end = get_seconds();
+ //printf("End: %f\n", end);
+
+ secs = (end-begin);
+ printf("Time to run computation of pi (2400 digits, 10 times): %.2f[secs]\n", secs);
+
+ return secs;
+}
+
+int main()
+{
+ printf("This is CPU and memory benchmark for OpenWRT "VERSION_STR". This will then take some time... (typically 30-60 seconds on a 200MHz computer)\n");
+
+ double begin = get_seconds();
+ double end = get_seconds();
+ overhead = (end-begin)*1000000;
+ printf("Overhead for getting time: %.0fus\n", overhead);
+
+
+ // Nb 1
+ double sec_mem = run_memory_bench();
+
+ // Nb 2
+ double sec_pi = run_compute_pi();
+
+ // Nb 3
+ double sec_e = run_compute_e();
+
+ // Nb 4
+ double sec_float = run_float_bench();
+
+
+
+
+ printf("Total time: %.1fs\n", (sec_mem+sec_e+sec_pi+sec_float));
+
+ time_t t = time(0);
+ struct tm ti;
+ localtime_r(&t, &ti);
+ printf("\nYou can copy/paste the following line in the wiki table at: http://wiki.openwrt.org/HardwarePerformance\n");
+
+ printf("|| %04d-%02d-%02d || ''Author'' || %.1fs || %.1fs || %.1fs || %.1fs || " VERSION_STR " || ''OS'' || ''DeviceModel'' || ''CPU model'' || ''CPU Frequency'' || ''LinkToHwPage'' ||\n", (ti.tm_year+1900), (ti.tm_mon+1), ti.tm_mday, sec_mem, sec_pi, sec_e, sec_float);
+
+ return 0;
+}
+