@@ -187,7 +187,7 @@ static bool doit(int mode)
187187 int64_t * percentiles = calloc (NUM_PERCENTILES , sizeof (int64_t ));
188188
189189 if (!before_ticks || !after_ticks || !exec_times || !classes ||
190- !input_data ) {
190+ !input_data || ! percentiles ) {
191191 die ();
192192 }
193193
@@ -213,18 +213,24 @@ static void init_once(void)
213213{
214214 init_dut ();
215215 for (size_t i = 0 ; i < DUDECT_TESTS ; i ++ ) {
216- ctxs [i ] = malloc (sizeof (t_context_t ));
217- t_init (ctxs [i ]);
216+ /* Check if ctxs[i] is unallocated to prevent repeated memory
217+ * allocations.
218+ */
219+ if (!ctxs [i ]) {
220+ ctxs [i ] = malloc (sizeof (t_context_t ));
221+ t_init (ctxs [i ]);
222+ }
218223 }
219224}
220225
221226static bool test_const (char * text , int mode )
222227{
223228 bool result = false;
224229
230+ init_once ();
231+ 225232 for (int cnt = 0 ; cnt < TEST_TRIES ; ++ cnt ) {
226233 printf ("Testing %s...(%d/%d)\n\n" , text , cnt , TEST_TRIES );
227- init_once ();
228234 for (int i = 0 ; i < ENOUGH_MEASURE / (N_MEASURES - DROP_SIZE * 2 ) + 1 ;
229235 ++ i )
230236 result = doit (mode );
@@ -235,6 +241,7 @@ static bool test_const(char *text, int mode)
235241
236242 for (size_t i = 0 ; i < DUDECT_TESTS ; i ++ ) {
237243 free (ctxs [i ]);
244+ ctxs [i ] = NULL ;
238245 }
239246
240247 return result ;
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