diff --git a/primer_calc/main.cpp b/primer_calc/main.cpp
index d3893d437b7ca36f65b3e2d8d71e0a924ea94559..497b9499e8649ebae46502064f678be000274617 100755
--- a/primer_calc/main.cpp
+++ b/primer_calc/main.cpp
@@ -161,6 +161,7 @@ int main(int argc, char * argv[])
 			if (rbat<batch)
 				rbat = batch;
 			printf ("Batch %lld ", rbat);
+			clock_t start_time = clock();
 #pragma omp parallel for
 			for (unsigned long long t = test; t<test+rbat;t+=2)
 			{
@@ -224,10 +225,11 @@ int main(int argc, char * argv[])
 			for (int i=0;i<numthreads;++i)
 				file_pos[i] = 1;
 			test += rbat;
+
 			//输出
 			if (set_results.size())
 			{
-				printf (",%d primes, last Primer: %lld    \n", set_results.size(),*set_results.rbegin());
+				printf (",%d primes, last Primer: %lld ,", set_results.size(),*set_results.rbegin());
 				fseeko64(fp,0,SEEK_END);
 				unsigned long long ttl = ftello64(fp)/8;
 				for(auto p = set_results.begin();p!=set_results.end();++p)
@@ -237,6 +239,13 @@ int main(int argc, char * argv[])
 				}
 				fflush(fpTxt);
 				fflush(fp);
+				clock_t end_time = clock();
+				clock_t spent = end_time - start_time;
+				if (spent)
+				{
+					printf (" %lld / s", rbat * CLOCKS_PER_SEC/ (spent));
+				}
+				printf ("\n");
 			}
 			else {
 				printf (", empty\n");