From ee8fa1735132d5345048699a181774ab036eb068 Mon Sep 17 00:00:00 2001
From: apostolos <apostolos.tapsas@vectorcamp.gr>
Date: Tue, 14 Sep 2021 15:32:26 +0300
Subject: [PATCH] fix benchmarks outputs

---
 benchmarks/benchmarks.cpp |  45 ++++--------
 benchmarks/benchmarks.hpp |  10 +++
 benchmarks/noodle.cpp     |  35 +++++----
 benchmarks/shufti.cpp     | 148 ++++++++++++++++++-------------------
 benchmarks/truffle.cpp    | 150 +++++++++++++++++++-------------------
 5 files changed, 197 insertions(+), 191 deletions(-)

diff --git a/benchmarks/benchmarks.cpp b/benchmarks/benchmarks.cpp
index e391dfcf..902068bd 100644
--- a/benchmarks/benchmarks.cpp
+++ b/benchmarks/benchmarks.cpp
@@ -4,40 +4,25 @@
 #include <string.h>
 #include <time.h>
 #include <functional>
+#include <vector>
+
+#define MAX_LOOPS    500000000
+#define MAX_MATCHES  10
 
 int main(){
-    int sizes[]=     {  16000,  32000,  64000, 120000, 1600000, 2000000, 2500000, 3500000, 150000000, 250000000, 350000000, 500000000};
-    int f_loops[]=   {  70000,  50000,  30000,  10000,    1000,    1000,    1000,    1000,         7,         7,         5,         3};
-    int t_loops[]=   { 200000, 150000, 100000,  70000,    5000,    5000,    5000,    5000,        50,        50,        50,        50};
-    int exp_len[]=   {     15,     15,     15,     15,       5,       5,       5,       5,         5,         5,         5,         5};
-    int nd_loops[]=  { 250000, 150000, 100000, 100000,   10000,     1000,     1000,     1000,      100,       100,      100,        100};
-    const char charset[] = "aAaAaAaAAAaaaaAAAAaaaaAAAAAAaaaAAaaa";
-    std::string labels[] = {"\x1B[33m Benchmarks(kbytes)  \x1B[0m\n", "\x1B[33m Benchmarks(kbytes)  \x1B[0m\n",
-                            "\x1B[33m Benchmarks(kbytes) \x1B[0m\n", "\x1B[33m  Benchmarks(kbytes) \x1B[0m\n", 
-                            "\x1B[33m Benchmarks(Mbytes)  \x1B[0m\n", "\x1B[33m Benchmarks(Mbytes)   \x1B[0m\n",
-                            "\x1B[33m Benchmarks(Mbytes) \x1B[0m\n", "\x1B[33m  Benchmarks(Mbytes) \x1B[0m\n",
-                            "\x1B[33m Benchmarks(Gbytes)  \x1B[0m\n", "\x1B[33m Benchmarks(Gbytes)   \x1B[0m\n",
-                            "\x1B[33m Benchmarks(Gbytes) \x1B[0m\n", "\x1B[33m  Benchmarks(Gbytes) \x1B[0m\n"
-                        };
-    
     std::function<void(int,int,int,bool)>  functions[] = { shufti_benchmarks, rshufti_benchmarks, truffle_benchmarks, rtruffle_benchmarks };
-    for (int i=11; i<12; i++) {
-        std::cout << labels[i];
-        for(int j=0; j<4; j++){
-            functions[j](sizes[i],f_loops[i],exp_len[i],false);
-            functions[j](sizes[i],t_loops[i],exp_len[i],true);  
+    int sizes[] =  {  16000,  32000,  64000, 120000, 1600000, 2000000, 2500000, 3500000, 150000000, 250000000, 350000000, 500000000 };
+    const char charset[] = "aAaAaAaAAAaaaaAAAAaaaaAAAAAAaaaAAaaa"; 
+    /*
+    for (size_t i = 0; i < std::size(sizes); i++) {
+        for(int j = 0; j < 4; j++) {
+            functions[j](sizes[i], MAX_LOOPS / sizes[i], MAX_MATCHES, false);
+            functions[j](sizes[i], MAX_LOOPS / sizes[i], MAX_MATCHES, true);  
         } 
     }
-    for(int i=0; i<12; i++){
-        if(i==0){
-            std::cout<<std::endl <<"\x1B[33m noodle Benchmarks(kbytes) \x1B[0m"<<std::endl;
-        }else if (i==4)
-        {
-            std::cout<<std::endl <<"\x1B[33m noodle Benchmarks(Mbytes) \x1B[0m"<<std::endl;
-        }else if (i==8)
-        {
-            std::cout<<std::endl <<"\x1B[33m noodle Benchmarks(Gbytes) \x1B[0m"<<std::endl;
-        }
+    */
+    for(size_t i=0; i < std::size(sizes); i++){
+        //we imitate the noodle unit tests
         for (int char_len = 1; char_len < 9; char_len++) {
             char *str = new char[char_len];
             for (int j=0; j<char_len; j++) {
@@ -46,7 +31,7 @@ int main(){
                 str[char_len] = charset[key];
                 str[char_len + 1] = '\0';
             }
-            noodle_benchmarks(sizes[i], nd_loops[i], str,char_len,0);
+            noodle_benchmarks(sizes[i],  MAX_LOOPS / sizes[i], str,char_len, 0);
             delete [] str;    
         }
     }
diff --git a/benchmarks/benchmarks.hpp b/benchmarks/benchmarks.hpp
index f27a7e06..894ed9ce 100644
--- a/benchmarks/benchmarks.hpp
+++ b/benchmarks/benchmarks.hpp
@@ -1,3 +1,13 @@
+/*define colour control characters*/
+#define RST  "\x1B[0m"
+#define KRED  "\x1B[31m"
+#define KGRN  "\x1B[32m"
+#define KYEL  "\x1B[33m"
+#define KBLU  "\x1B[34m"
+#define KMAG  "\x1B[35m"
+#define KCYN  "\x1B[36m"
+#define KWHT  "\x1B[37m"
+
 void shufti_benchmarks(int size, int loops, int M, bool has_match);
 void rshufti_benchmarks(int size, int loops, int M, bool has_match);
 void truffle_benchmarks(int size, int loops, int M, bool has_match);
diff --git a/benchmarks/noodle.cpp b/benchmarks/noodle.cpp
index a910e0cf..d12e25f1 100644
--- a/benchmarks/noodle.cpp
+++ b/benchmarks/noodle.cpp
@@ -29,33 +29,40 @@ hwlmcb_rv_t hlmSimpleCallback(size_t to, u32 id,
     return HWLM_CONTINUE_MATCHING;
 }
 
-void noodle_benchmarks(int size, int M, const char *lit_str, int lit_len, char nocase){
+void noodle_benchmarks(int size, int loops, const char *lit_str, int lit_len, char nocase){
     ctxt.clear();
     u8 *data = new u8[size];
     memset(data, 'a', size);
-    long double total_sec = 0;
-    long double trans_size = 0;
-    long double bw = 0;
+    double total_sec = 0.0;
+    u64a transferred_size = 0;
+    double avg_time = 0.0;
+    double max_bw = 0.0;
+    double bandwitdh = 0.0;
     u32 id = 1000;
     ue2::hwlmLiteral lit(std::string(lit_str, lit_len), nocase, id);
     auto n = ue2::noodBuildTable(lit);
     assert(n != nullptr);
     struct hs_scratch scratch;
     auto start = std::chrono::steady_clock::now(); 
-    for (int i = 0; i < M; i++){ 
+    for (int i = 0; i < loops; i++){ 
         noodExec(n.get(), data, size, 0, hlmSimpleCallback, &scratch); 
     }
     auto end = std::chrono::steady_clock::now();
-    total_sec += std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+    total_sec += std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
     /*calculate transferred size*/
-    trans_size = size * M;
-    /*convert to sec*/
-    bw = trans_size / total_sec;
+    transferred_size = size * loops;
+    /*calculate average time*/
+    avg_time = total_sec / loops;
+    /*convert microseconds to seconds*/
+    total_sec /= 1000000.0;
+    /*calculate maximum bandwidth*/
+    max_bw = transferred_size / total_sec;
     /*convert to MB/s*/
-    bw /=1048576;
-    /*covert average time to μs*/
-    long double ms = total_sec * 1000000;
-    std::cout << "\x1B[35m Case with match in random pos and size: "<< size <<" lit_len: "<< lit_len <<" nocase: "<< (int)nocase
-              << "\x1B[36m noodExec elapsetime: \x1B[0m" << (ms/M) << " (μs) \x1B[36m bandwidth: \x1B[0m" << bw <<" (MB/s)" << std::endl;    
+    max_bw /=1048576.0;
+    /*calculate average bandwidth*/
+    bandwitdh = max_bw / loops;
+    printf(KMAG "Case with %u matches in random pos with %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               lit_len, size ,loops, total_sec, avg_time, max_bw, bandwitdh);    
     delete [] data;
 }
\ No newline at end of file
diff --git a/benchmarks/shufti.cpp b/benchmarks/shufti.cpp
index ce576a0f..85a45e21 100644
--- a/benchmarks/shufti.cpp
+++ b/benchmarks/shufti.cpp
@@ -7,142 +7,144 @@
 #include <ctime>
 #include <cstdlib>
 
-/*
-#define RST  "\x1B[0m"
-#define KRED  "\x1B[31m"
-#define KGRN  "\x1B[32m"
-#define KYEL  "\x1B[33m"
-#define KBLU  "\x1B[34m"
-#define KMAG  "\x1B[35m"
-#define KCYN  "\x1B[36m"
-#define KWHT  "\x1B[37m"
-*/
-
-
 void shufti_benchmarks(int size, int loops, int M, bool has_match) { 
-    size_t real_size = size;
     m128 lo, hi;
     ue2::CharReach chars;
     chars.set('a');
     int ret = shuftiBuildMasks(chars, (u8 *)&lo, (u8 *)&hi);
     u8 *kt1 = new u8[size];
     memset(kt1,'b',size);
-    long double total_sec = 0;
-    long double trans_size = 0;
-    long double bw = 0;
-    if (has_match){
+    double total_sec = 0.0;            
+    u64a transferred_size = 0;
+    double bandwitdh = 0.0;
+    double max_bw = 0.0;
+    double avg_time = 0.0;
+    if (has_match) {
         int pos = 0;
-        for(int j=0; j<M; j++){
+        for(int j = 0; j < M; j++) {
             kt1[pos] = 'b';
             srand (time(NULL));
             pos = rand() % size + 0;
             kt1[pos] = 'a';
             unsigned long act_size = 0;
             auto start = std::chrono::steady_clock::now();
-            for (int i = 0; i < loops; i++) {
+            for(int i = 0; i < loops; i++) {
                 const u8 *res = shuftiExec(lo, hi, kt1, kt1 + size);
                 act_size += res - kt1;
             }
             auto end = std::chrono::steady_clock::now();
-            long double dt = std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+            double dt = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
             total_sec += dt;
-            /*calculate transferred size*/
-            trans_size += act_size * loops;
+            /*convert microseconds to seconds*/
+            total_sec /= 1000000.0;
             /*calculate bandwidth*/
-            bw += trans_size / total_sec;
+            bandwitdh  += act_size / total_sec;
             /*convert to MB/s*/
-            bw += bw / 1048576;
-            /*calculte average time*/
-            total_sec /= loops;
+            bandwitdh  = bandwitdh  / 1048576.0;
+            max_bw = std::max(bandwitdh ,max_bw);
+            /*calculate average time*/
+            avg_time += total_sec / loops;
         }
-        total_sec /= M;
-        bw /= M;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout << "\x1B[35m Case with match in random pos and size: " << real_size << " for " << loops<<" loops ("
-                  << M << " random possisions checked): \x1B[36m shuftiExec elapsetime: \x1B[0m" << (ms/M)
-                  <<" (μs) \x1B[36m bandwidth: \x1B[0m" << bw <<" (MB/s)"<<std::endl;
+        avg_time /= M;
+        bandwitdh /= M;
+        /*convert average time to us*/
+        avg_time *= 1000000.0;
+        printf(KMAG "ShuftiExec: case with %u matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               M, size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     } else {
         auto start = std::chrono::steady_clock::now();
         for (int i = 0; i < loops; i++) {
             shuftiExec(lo, hi, kt1, kt1 + size);
         }
         auto end = std::chrono::steady_clock::now();
-        total_sec += std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+        total_sec += std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
         /*calculate transferred size*/
-        trans_size = size * loops ;
-        /*calculate bandwidth*/
-        bw = trans_size / total_sec;
+        transferred_size = size * loops;
+        /*calculate average time*/
+        avg_time = total_sec / loops;
+        /*convert microseconds to seconds*/
+        total_sec /= 1000000.0;
+        /*calculate maximum bandwidth*/
+        max_bw = transferred_size / total_sec;
         /*convert to MB/s*/
-        bw /=1048576;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout<<"\x1B[35m Case with no match in random pos and size: "<<real_size<<" for "<<loops<<" loops:"
-                 <<"\x1B[36m shuftiExec elapsetime: \x1B[0m"<<(ms/loops)<<" (μs) \x1B[36m bandwidth: \x1B[0m"<< bw <<" (MB/s)"<<std::endl;
+        max_bw /=1048576.0;
+        /*calculate average bandwidth*/
+        bandwitdh = max_bw / loops;
+        printf(KMAG "ShuftiExec: case without matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs ," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     }
     delete [] kt1;
 }
 
 void rshufti_benchmarks(int size, int loops, int M, bool has_match) {
-    size_t real_size = size;
     m128 lo, hi;
     ue2::CharReach chars;
     chars.set('a');
     int ret = shuftiBuildMasks(chars, (u8 *)&lo, (u8 *)&hi);
     u8 *kt1 = new u8[size];
     memset(kt1,'b',size);
-    long double total_sec = 0;
-    long double trans_size = 0;
-    long double bw = 0;
-    if (has_match){
+    double total_sec = 0.0;            
+    u64a transferred_size = 0;
+    double bandwitdh = 0.0;
+    double max_bw = 0.0;
+    double avg_time = 0.0;
+    if (has_match) {
         int pos = 0;
-        for(int j=0; j<M; j++){
+        for(int j = 0; j < M; j++) {
             kt1[pos] = 'b';
             srand (time(NULL));
             pos = rand() % size + 0;
             kt1[pos] = 'a';
             unsigned long act_size = 0;
             auto start = std::chrono::steady_clock::now();
-            for (int i = 0; i < loops; i++) {
+            for(int i = 0; i < loops; i++) {
                 const u8 *res = rshuftiExec(lo, hi, kt1, kt1 + size);
-                act_size += res - kt1; 
+                act_size += res - kt1;
             }
             auto end = std::chrono::steady_clock::now();
-            long double dt = std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+            double dt = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
             total_sec += dt;
-            /*calculate transferred size*/
-            trans_size += act_size * loops;
+            /*convert microseconds to seconds*/
+            total_sec /= 1000000.0;
             /*calculate bandwidth*/
-            bw += trans_size / total_sec;
+            bandwitdh  += act_size / total_sec;
             /*convert to MB/s*/
-            bw += bw / 1048576;
-            /*calculte average time*/
-            total_sec /= loops;
+            bandwitdh  = bandwitdh  / 1048576.0;
+            max_bw = std::max(bandwitdh ,max_bw);
+            /*calculate average time*/
+            avg_time += total_sec / loops;
         }
-        total_sec /= M;
-        bw /= M;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout << "\x1B[35m Case with match in random pos and size: " << real_size << " for " << loops<<" loops ("
-                  << M << " random possisions checked): \x1B[36m rshuftiExec elapsetime: \x1B[0m" << (ms/M)
-                  <<" (μs) \x1B[36m bandwidth: \x1B[0m" << bw <<" (MB/s)"<<std::endl;
+        avg_time /= M;
+        bandwitdh /= M;
+        /*convert average time to μs*/
+        avg_time *= 1000000.0;
+        printf(KMAG "rShuftiExec: case with %u matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               M, size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     } else {
         auto start = std::chrono::steady_clock::now();
         for (int i = 0; i < loops; i++) {
             rshuftiExec(lo, hi, kt1, kt1 + size);
         }
         auto end = std::chrono::steady_clock::now();
-        total_sec += std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+        total_sec += std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
         /*calculate transferred size*/
-        trans_size = size * loops ;
-        /*calculate bandwidth*/
-        bw = trans_size / total_sec;
+        transferred_size = size * loops;
+        /*calculate average time*/
+        avg_time = total_sec / loops;
+        /*convert microseconds to seconds*/
+        total_sec /= 1000000.0;
+        /*calculate maximum bandwidth*/
+        max_bw = transferred_size / total_sec;
         /*convert to MB/s*/
-        bw /=1048576;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout<<"\x1B[35m Case with no match in random pos and size: "<<real_size<<" for "<<loops<<" loops:"
-                 <<"\x1B[36m rshuftiExec elapsetime: \x1B[0m"<<(ms/loops)<<" (μs) \x1B[36m bandwidth: \x1B[0m"<< bw <<" (MB/s)"<<std::endl;
+        max_bw /=1048576.0;
+        /*calculate average bandwidth*/
+        bandwitdh = max_bw / loops;
+        printf(KMAG "rShuftiExec: case without matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs ," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     }
     delete [] kt1;
 }
diff --git a/benchmarks/truffle.cpp b/benchmarks/truffle.cpp
index 0050e8d8..f3f08acf 100644
--- a/benchmarks/truffle.cpp
+++ b/benchmarks/truffle.cpp
@@ -6,143 +6,145 @@
 #include <cstring>
 #include <ctime>
 
-/*
-#define RST  "\x1B[0m"
-#define KRED  "\x1B[31m"
-#define KGRN  "\x1B[32m"
-#define KYEL  "\x1B[33m"
-#define KBLU  "\x1B[34m"
-#define KMAG  "\x1B[35m"
-#define KCYN  "\x1B[36m"
-#define KWHT  "\x1B[37m"
-*/
-
-
 void truffle_benchmarks(int size, int loops, int M, bool has_match) {
-    size_t real_size = size;
     m128 lo, hi;
     ue2::CharReach chars;
     chars.set('a');
     truffleBuildMasks(chars, (u8 *)&lo, (u8 *)&hi);
-    u8*kt1 = new u8[size];
+    u8 *kt1 = new u8[size];
     memset(kt1,'b',size);
-    long double total_sec = 0;
-    long double trans_size = 0;
-    long double bw = 0;
-    if (has_match){
+    double total_sec = 0.0;            
+    u64a transferred_size = 0;
+    double bandwitdh = 0.0;
+    double max_bw = 0.0;
+    double avg_time = 0.0;
+    if (has_match) {
         int pos = 0;
-        for(int j=0; j<M; j++){
+        for(int j = 0; j < M; j++) {
             kt1[pos] = 'b';
             srand (time(NULL));
             pos = rand() % size + 0;
             kt1[pos] = 'a';
             unsigned long act_size = 0;
             auto start = std::chrono::steady_clock::now();
-            for (int i = 0; i < loops; i++) {
+            for(int i = 0; i < loops; i++) {
                 const u8 *res = truffleExec(lo, hi, kt1, kt1 + size);
                 act_size += res - kt1;
             }
             auto end = std::chrono::steady_clock::now();
-            long double dt = std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+            double dt = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
             total_sec += dt;
-            /*calculate transferred size*/
-            trans_size += act_size * loops;
+            /*convert microseconds to seconds*/
+            total_sec /= 1000000.0;
             /*calculate bandwidth*/
-            bw += trans_size / total_sec;
+            bandwitdh  += act_size / total_sec;
             /*convert to MB/s*/
-            bw += bw / 1048576;
-            /*calculte average time*/
-            total_sec /= loops;
+            bandwitdh  = bandwitdh  / 1048576.0;
+            max_bw = std::max(bandwitdh ,max_bw);
+            /*calculate average time*/
+            avg_time += total_sec / loops;
         }
-        total_sec /= M;
-        bw /= M;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout << "\x1B[35m Case with match in random pos and size: " << real_size << " for "<< loops <<" loops ("
-                  << M <<" random possisions checked): \x1B[36m truffleExec elapsetime: \x1B[0m" << (ms/M)
-                  << "(μs) \x1B[36m bandwidth: \x1B[0m"<< bw << "(MB/μs)" <<std::endl;
+        avg_time /= M;
+        bandwitdh /= M;
+        /*convert average time to us*/
+        avg_time *= 1000000.0;
+        printf(KMAG "TruffleExec: case with %u matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               M, size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     } else {
         auto start = std::chrono::steady_clock::now();
         for (int i = 0; i < loops; i++) {
             truffleExec(lo, hi, kt1, kt1 + size);
         }
         auto end = std::chrono::steady_clock::now();
-        total_sec += std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+        total_sec += std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
         /*calculate transferred size*/
-        trans_size = size * loops ;
-        /*calculate bandwidth*/
-        bw = trans_size / total_sec;
+        transferred_size = size * loops;
+        /*calculate average time*/
+        avg_time = total_sec / loops;
+        /*convert microseconds to seconds*/
+        total_sec /= 1000000.0;
+        /*calculate maximum bandwidth*/
+        max_bw = transferred_size / total_sec;
         /*convert to MB/s*/
-        bw /=1048576;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout<<"\x1B[35m Case with no match in random pos and size: "<<real_size<<" for "<<loops<<" loops:"
-                 <<"\x1B[36m truffleExec elapsetime: \x1B[0m"<<(ms/loops)<<" (μs) \x1B[36m bandwidth: \x1B[0m"<< bw <<" (MB/s)"<<std::endl;
+        max_bw /=1048576.0;
+        /*calculate average bandwidth*/
+        bandwitdh = max_bw / loops;
+        printf(KMAG "TruffleExec case without matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs ," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     }
     delete [] kt1;
 }
 
 
 void rtruffle_benchmarks(int size, int loops, int M, bool has_match) {  
-    size_t real_size = size;
-    m128 lo, hi;
+     m128 lo, hi;
     ue2::CharReach chars;
     chars.set('a');
     truffleBuildMasks(chars, (u8 *)&lo, (u8 *)&hi);
     u8 *kt1 = new u8[size];
     memset(kt1,'b',size);
-    long double total_sec = 0;
-    long double trans_size = 0;
-    long double bw = 0;
-    if (has_match){
+    double total_sec = 0.0;            
+    u64a transferred_size = 0;
+    double bandwitdh = 0.0;
+    double max_bw = 0.0;
+    double avg_time = 0.0;
+    if (has_match) {
         int pos = 0;
-        for(int j=0; j<M; j++){
+        for(int j = 0; j < M; j++) {
             kt1[pos] = 'b';
             srand (time(NULL));
             pos = rand() % size + 0;
             kt1[pos] = 'a';
             unsigned long act_size = 0;
             auto start = std::chrono::steady_clock::now();
-            for (int i = 0; i < loops; i++) {
+            for(int i = 0; i < loops; i++) {
                 const u8 *res = rtruffleExec(lo, hi, kt1, kt1 + size);
                 act_size += res - kt1;
             }
             auto end = std::chrono::steady_clock::now();
-            long double dt = std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+            double dt = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
             total_sec += dt;
-            /*calculate transferred size*/
-            trans_size += act_size * loops;
+            /*convert microseconds to seconds*/
+            total_sec /= 1000000.0;
             /*calculate bandwidth*/
-            bw += trans_size / total_sec;
+            bandwitdh  += act_size / total_sec;
             /*convert to MB/s*/
-            bw += bw / 1048576;
-            /*calculte average time*/
-            total_sec /= loops;
+            bandwitdh  = bandwitdh  / 1048576.0;
+            max_bw = std::max(bandwitdh ,max_bw);
+            /*calculate average time*/
+            avg_time += total_sec / loops;
         }
-        total_sec /= M;
-        bw /= M;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout<<"\x1B[35m Case with match in random pos and size: "<< real_size <<" for "<<loops<<" loops ("
-                 << M <<" random possisions checked):"<<"\x1B[36m rtruffleExec elapsetime: \x1B[0m" 
-                 << (ms/M) <<" (μs) \x1B[36m bandwidth: \x1B[0m"<< bw <<"(ΜΒ/μs)"<<std::endl;
+        avg_time /= M;
+        bandwitdh /= M;
+        /*convert average time to us*/
+        avg_time *= 1000000.0;
+        printf(KMAG "rTruffleExec: case with %u matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               M, size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     } else {
         auto start = std::chrono::steady_clock::now();
         for (int i = 0; i < loops; i++) {
             rtruffleExec(lo, hi, kt1, kt1 + size);
         }
         auto end = std::chrono::steady_clock::now();
-        total_sec += std::chrono::duration_cast<std::chrono::seconds>(end - start).count();
+        total_sec += std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
         /*calculate transferred size*/
-        trans_size = size * loops ;
-        /*calculate bandwidth*/
-        bw = trans_size / total_sec;
+        transferred_size = size * loops;
+        /*calculate average time*/
+        avg_time = total_sec / loops;
+        /*convert microseconds to seconds*/
+        total_sec /= 1000000.0;
+        /*calculate maximum bandwidth*/
+        max_bw = transferred_size / total_sec;
         /*convert to MB/s*/
-        bw /=1048576;
-        /*covert average time to μs*/
-        long double ms = total_sec * 1000000;
-        std::cout<<"\x1B[35m Case with no match in random pos and size: "<<real_size<<" for "<<loops<<" loops:"
-                 <<"\x1B[36m rtruffleExec elapsetime: \x1B[0m"<<(ms/loops)<<" (μs) \x1B[36m bandwidth: \x1B[0m"<< bw <<" (MB/s)"<<std::endl;
+        max_bw /=1048576.0;
+        /*calculate average bandwidth*/
+        bandwitdh = max_bw / loops;
+        printf(KMAG "rTruffleExec case without matches, %u * %u iterations," KBLU " total elapsed time =" RST " %.3f s, " 
+               KBLU "average time per call =" RST " %.3f μs ," KBLU " bandwidth = " RST " %.3f MB/s," KBLU " average bandwidth =" RST " %.3f MB/s \n",
+               size ,loops, total_sec, avg_time, max_bw, bandwitdh);
     }
     delete [] kt1;
 }
-- 
2.47.2