diff options
author | Denys Dmytriyenko <denis@denix.org> | 2009-03-17 14:32:59 -0400 |
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committer | Denys Dmytriyenko <denis@denix.org> | 2009-03-17 14:32:59 -0400 |
commit | 709c4d66e0b107ca606941b988bad717c0b45d9b (patch) | |
tree | 37ee08b1eb308f3b2b6426d5793545c38396b838 /recipes/cpubench/files/openwrt_cpu_bench_v06.c | |
parent | fa6cd5a3b993f16c27de4ff82b42684516d433ba (diff) |
rename packages/ to recipes/ per earlier agreement
See links below for more details:
http://thread.gmane.org/gmane.comp.handhelds.openembedded/21326
http://thread.gmane.org/gmane.comp.handhelds.openembedded/21816
Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Acked-by: Mike Westerhof <mwester@dls.net>
Acked-by: Philip Balister <philip@balister.org>
Acked-by: Khem Raj <raj.khem@gmail.com>
Acked-by: Marcin Juszkiewicz <hrw@openembedded.org>
Acked-by: Koen Kooi <koen@openembedded.org>
Acked-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Diffstat (limited to 'recipes/cpubench/files/openwrt_cpu_bench_v06.c')
-rw-r--r-- | recipes/cpubench/files/openwrt_cpu_bench_v06.c | 227 |
1 files changed, 227 insertions, 0 deletions
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; +} + |