diff --git a/lladd/constants.h b/lladd/constants.h
index d708129..59559df 100644
--- a/lladd/constants.h
+++ b/lladd/constants.h
@@ -80,11 +80,11 @@ terms specified in this license.
 
 #define PAGE_SIZE 4096
 
-/* #define MAX_BUFFER_SIZE 100003 */
+#define MAX_BUFFER_SIZE 100003 
 /*#define MAX_BUFFER_SIZE 20029 */
 //#define MAX_BUFFER_SIZE 10007 
 /*#define MAX_BUFFER_SIZE 5003*/
-#define MAX_BUFFER_SIZE 2003 
+/*#define MAX_BUFFER_SIZE 2003 */
 /* #define MAX_BUFFER_SIZE 71  */
 /*#define MAX_BUFFER_SIZE 7 */
 /*#define BUFFER_ASOOCIATIVE 2 */
diff --git a/src/lladd/truncation.c b/src/lladd/truncation.c
index a653fb8..3c0af38 100644
--- a/src/lladd/truncation.c
+++ b/src/lladd/truncation.c
@@ -17,9 +17,15 @@ static pblHashTable_t * dirtyPages = 0;
 static pthread_mutex_t dirtyPages_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 int lladd_enableAutoTruncation = 1;
+#ifdef LONG_TEST
+#define TARGET_LOG_SIZE (1024 * 1024 * 5)
+#define TRUNCATE_INTERVAL 1
+#define MIN_INCREMENTAL_TRUNCATION (1024 * 1024 * 1)
+#else 
 #define TARGET_LOG_SIZE (1024 * 1024 * 50)
 #define TRUNCATE_INTERVAL 1
-#define MIN_INCREMENTAL_TRUNCATION (1024 * 1024 * 10)
+#define MIN_INCREMENTAL_TRUNCATION (1024 * 1024 * 25)
+#endif
 void dirtyPages_add(Page * p) {
   pthread_mutex_lock(&dirtyPages_mutex);
   if(!p->dirty) { 
diff --git a/test/lladd/check_linearHashNTA.c b/test/lladd/check_linearHashNTA.c
index 2326a5c..06c967c 100644
--- a/test/lladd/check_linearHashNTA.c
+++ b/test/lladd/check_linearHashNTA.c
@@ -50,6 +50,10 @@ terms specified in this license.
 #include <limits.h>
 #include <math.h>
 #include <pthread.h>
+
+#include <sys/time.h>
+#include <time.h>
+
 #define LOG_NAME   "check_linearHashNTA.log"
 #define NUM_ENTRIES 100000
 /** @test
@@ -187,9 +191,13 @@ START_TEST(linearHashNTAVariableSizetest)
 } END_TEST
 
 
+#define DEFAULT_NUM_THREADS 100
+
+#define DEFAULT_NUM_T_ENTRIES 500
+
+int NUM_THREADS = DEFAULT_NUM_THREADS;
+int NUM_T_ENTRIES = DEFAULT_NUM_T_ENTRIES;
 
-#define NUM_THREADS 100
-#define NUM_T_ENTRIES 500
 typedef struct { 
   int thread;
   recordid rid;
@@ -264,6 +272,38 @@ START_TEST(linearHashNTAThreadedTest) {
   Tdeinit();
 } END_TEST
 
+START_TEST(linearHashNTAThreadedTestRandomized) {
+  Tinit();
+  struct timeval tv;
+  gettimeofday(&tv, 0);
+
+  srandom(tv.tv_sec * 1000000 + tv.tv_usec);
+  NUM_THREADS = (int)(((double)random()/(double)RAND_MAX)* ((double)DEFAULT_NUM_THREADS) * 5.0);
+  NUM_T_ENTRIES = (int)(((double)random()/(double)RAND_MAX) * ((double)DEFAULT_NUM_T_ENTRIES) * 5.0);
+  
+  printf("\n%d threads, %d entries", NUM_THREADS, NUM_T_ENTRIES);
+
+  int xid = Tbegin();
+  recordid rid = ThashCreate(xid, sizeof(recordid), sizeof(int));
+  int i;
+  Tcommit(xid);
+  pthread_t threads[NUM_THREADS];
+  for(i = 0; i < NUM_THREADS; i++) {
+    linear_hash_worker_args * args = malloc(sizeof(linear_hash_worker_args));
+    args->thread = i;
+    args->rid= rid;
+    pthread_create(&threads[i], NULL, &worker, args);
+    if(!(i % 50)) { 
+      sleep(1);
+    }
+  }
+  for(i = 0; i < NUM_THREADS; i++) {
+    void * ret;
+    pthread_join(threads[i], &ret);
+  }
+  Tdeinit();
+} END_TEST
+
 START_TEST(linearHashNTAIteratortest) {
   Tinit();
   int xid = Tbegin();
@@ -365,6 +405,11 @@ Suite * check_suite(void) {
 
   tcase_set_timeout(tc, 0); // disable timeouts
   /* Sub tests are added, one per line, here */
+#ifdef LONG_TEST
+  tcase_add_test(tc, linearHashNTAThreadedTestRandomized);
+  tcase_add_test(tc, linearHashNTAThreadedTestRandomized);
+  tcase_add_test(tc, linearHashNTAThreadedTestRandomized);
+#endif
   tcase_add_test(tc, emptyHashIterator);
   tcase_add_test(tc, emptyHashIterator2);
   tcase_add_test(tc, linearHashNTAVariableSizetest);