diff --git a/client.c b/client.c
index 993c0f0..8d69f66 100644
--- a/client.c
+++ b/client.c
@@ -384,7 +384,7 @@ static int parse_arg(int argc,const char *argv[]){
         }
         else if(strcmp("-h",argv[cur]) == 0 || strcmp("--help",argv[cur]) == 0){
             show_help_message(stdout,argv[0]);
-            return 0;
+            return -1;
         }
         else if(strcmp("-q",argv[cur]) == 0 || strcmp("--quiet",argv[cur]) == 0){
             cmd_args.quiet_mode = true;
diff --git a/p-server.c b/p-server.c
index 2461db9..5173c92 100644
--- a/p-server.c
+++ b/p-server.c
@@ -58,8 +58,16 @@ static const int RESPONSE_REQUEST = DEFAULT_RESPONSE_REQUEST;
 #include "timerhelper.h"
 
 enum{
+    #ifndef DEFAULT_TOP_TRACE_TIMER_ID
     Top_Trace_Timer_ID = CLOCK_REALTIME,
+    #else
+    Top_Trace_Timer_ID = DEFAULT_TOP_TRACE_TIMER_ID,
+    #endif
+    #ifndef DEFAULT_BOTTOM_TRACE_TIMER_ID
     Bottom_Trace_Timer_ID = CLOCK_THREAD_CPUTIME_ID
+    #else
+    Bottom_Trace_Timer_ID = DEFAULT_BOTTOM_TRACE_TIMER_ID
+    #endif
 };
 
 static inline void report_resolution()
@@ -311,7 +319,7 @@ int main(int argc, const char *argv[]){
     #ifdef USE_TRACE
         clock_gettime(Top_Trace_Timer_ID,&ts_top_begin);
     #endif
-        fprintf(stderr,"Connected on : %s:%d\n",msg == NULL ? "(null)" : msg , ntohs(client_addr.sin_port));
+        fprintf(stdout,"Connected on : %s:%d\n",msg == NULL ? "(null)" : msg , ntohs(client_addr.sin_port));
         pid = fork();
         if(pid == 0){
     #ifdef USE_TRACE
@@ -328,8 +336,8 @@ int main(int argc, const char *argv[]){
     #ifdef USE_TRACE
             clock_gettime(Bottom_Trace_Timer_ID,&ts_bottom_end);
             struct timespec tophalf = timespec_sub(ts_top_end,ts_top_begin);
-            struct timespec bottomhelf = timespec_sub(ts_bottom_end,ts_bottom_end);
-            fprintf(stderr,"top: %ld ns, bottom: %ld ns\n",tophalf.tv_nsec,bottomhelf.tv_nsec);
+            struct timespec bottomhalf = timespec_sub(ts_bottom_end,ts_bottom_begin);
+            fprintf(stderr,"top: %ld ns, bottom: %ld ns\n",tophalf.tv_nsec,bottomhalf.tv_nsec);
     #endif
             free(buf);
             return retval;
diff --git a/server.c b/server.c
index 32f6c43..44ae211 100644
--- a/server.c
+++ b/server.c
@@ -68,8 +68,16 @@ static const int SLOW_SERVER_TIME = SLOW_SERVER;
 #ifdef USE_TRACE
 #include "timerhelper.h"
 enum{
+    #ifndef DEFAULT_TOP_TRACE_TIMER_ID
     Top_Trace_Timer_ID = CLOCK_REALTIME,
+    #else
+    Top_Trace_Timer_ID = DEFAULT_TOP_TRACE_TIMER_ID,
+    #endif
+    #ifndef DEFAULT_BOTTOM_TRACE_TIMER_ID
     Bottom_Trace_Timer_ID = CLOCK_THREAD_CPUTIME_ID
+    #else
+    Bottom_Trace_Timer_ID = DEFAULT_BOTTOM_TRACE_TIMER_ID
+    #endif
 };
 
 static inline void report_resolution()
@@ -375,14 +383,15 @@ void * worker_proc(void * data){
         }
     #ifdef USE_TRACE
         clock_gettime(Bottom_Trace_Timer_ID,&ts_bottom_end);
-        struct timespec tophalf = timespec_sub(ts_top_end,ts_top_end);
-        struct timespec bottomhelf = timespec_sub(ts_bottom_end,ts_bottom_begin);
+        struct timespec tophalf = timespec_sub(ts_top_end,ts_top_begin);
+        struct timespec bottomhalf = timespec_sub(ts_bottom_end,ts_bottom_begin);
         if(use_gui&&isatty_file(stderr)){
             lock_scrolled();
             add_scrolled_unlocked(1);
-            fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhelf.tv_nsec);
+            fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhalf.tv_nsec);
             unlock_scrolled();
         }
+        else fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhalf.tv_nsec);
     #endif
         if(close(csock) < 0)
             server_perror("csock close error");
@@ -409,14 +418,14 @@ void * worker_proc(void * data){
     #ifdef USE_TRACE
     clock_gettime(Bottom_Trace_Timer_ID,&ts_bottom_end);
     struct timespec tophalf = timespec_sub(ts_top_end,ts_top_begin);
-    struct timespec bottomhelf = timespec_sub(ts_bottom_end,ts_bottom_begin);
+    struct timespec bottomhalf = timespec_sub(ts_bottom_end,ts_bottom_begin);
     if(use_gui&&isatty_file(stderr)){
         lock_scrolled();
         add_scrolled_unlocked(1);
-        fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhelf.tv_nsec);
+        fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhalf.tv_nsec);
         unlock_scrolled();
     }
-    else fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhelf.tv_nsec);
+    else fprintf(stderr,"top : %ld ns, bottom : %ld ns\n",tophalf.tv_nsec,bottomhalf.tv_nsec);
     #endif
     if(close(csock) < 0)
         server_perror("csock close error");