X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fsec%2Fbenchmarks.c;h=727697d3fba1ec9bb6afc09f5abd93842ee1fddf;hb=2c11694a46d846418792408b130cd40658cb04fa;hp=f5fbd79b28a06aa90a8a0ece5dd1094334aa95e0;hpb=bef610f14930b50af370a0a582f904204285d084;p=bertos.git

diff --git a/bertos/sec/benchmarks.c b/bertos/sec/benchmarks.c
index f5fbd79b..727697d3 100644
--- a/bertos/sec/benchmarks.c
+++ b/bertos/sec/benchmarks.c
@@ -3,11 +3,11 @@
 #include <drv/timer.h>
 #include <string.h>
 
+static uint8_t buf[512];
+
 void hash_benchmark(Hash *h, const char *hname, int numk)
 {
-	static uint8_t buf[512];
 	memset(buf, 0x12, sizeof(buf));
-
 	ticks_t t = timer_clock();
 
 	for (int j=0;j<64;++j) {
@@ -22,3 +22,27 @@ void hash_benchmark(Hash *h, const char *hname, int numk)
 	utime_t usec = ticks_to_us(t) / 64;
 	kprintf("%s @ %ldMhz: %s of %dKiB of data: %lu.%lu ms\n", CPU_CORE_NAME, CPU_FREQ/1000000, hname, numk, (usec/1000), (usec % 1000));
 }
+
+void prng_benchmark(PRNG *prng, const char *hname, int numbytes)
+{
+	memset(buf, 0x12, sizeof(buf));
+
+	ASSERT(sizeof(buf) >= prng_seed_len(prng));
+	prng_reseed(prng, buf);
+
+	ticks_t t = timer_clock();
+
+	for (int j=0;j<2048;++j) {
+		for (int i=0; i<(numbytes+511)/512-1; ++i)
+			prng_generate(prng, buf, 512);
+		if (numbytes % 512)
+			prng_generate(prng, buf, numbytes%512);
+	}
+
+	t = timer_clock() - t;
+
+	utime_t usec = ticks_to_us(t) / 2048;
+	kprintf("%s @ %ldMhz: %s generation of %d random bytes: %lu.%lu ms\n", CPU_CORE_NAME, CPU_FREQ/1000000, hname, numbytes, (usec/1000), (usec % 1000));
+	kprintf("Sample of random data:\n");
+	kdump(buf, MIN(numbytes, 64));
+}