diff --git a/deps/jemalloc/src/jemalloc.c b/deps/jemalloc/src/jemalloc.c
index fe77c247..54a3b1ba 100644
--- a/deps/jemalloc/src/jemalloc.c
+++ b/deps/jemalloc/src/jemalloc.c
@@ -2614,8 +2614,8 @@ je_get_defrag_hint(void* ptr, int *bin_util, int *run_util) {
             if (chunk != (arena_chunk_t *)CHUNK_ADDR2BASE(bin->runcur)) {
                 arena_bin_info_t *bin_info = &arena_bin_info[run->binind];
                 size_t availregs = bin_info->nregs * bin->stats.curruns;
-                *bin_util = (bin->stats.curregs<<16) / availregs;
-                *run_util = ((bin_info->nregs - run->nfree)<<16) / bin_info->nregs;
+                *bin_util = ((long long)bin->stats.curregs<<16) / availregs;
+                *run_util = ((long long)(bin_info->nregs - run->nfree)<<16) / bin_info->nregs;
                 defrag = 1;
             }
             malloc_mutex_unlock(&bin->lock);
diff --git a/src/server.c b/src/server.c
index 2ff93301..647aee24 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1019,7 +1019,7 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
     if (zmalloc_used_memory() > server.stat_peak_memory)
         server.stat_peak_memory = zmalloc_used_memory();
 
-    run_with_period(10) {
+    run_with_period(100) {
         /* Sample the RSS and other metrics here since this is a relatively slow call.
          * We must sample the zmalloc_used at the same time we take the rss, otherwise
          * the frag ratio calculate may be off (ratio of two samples at different times) */
diff --git a/src/zmalloc.c b/src/zmalloc.c
index 7cb4e372..31e686c4 100644
--- a/src/zmalloc.c
+++ b/src/zmalloc.c
@@ -301,10 +301,13 @@ size_t zmalloc_get_rss(void) {
 int zmalloc_get_allocator_info(size_t *allocated,
                                size_t *active,
                                size_t *resident) {
-    size_t epoch = 1, sz = sizeof(size_t);
+    uint64_t epoch = 1;
+    size_t sz;
     *allocated = *resident = *active = 0;
     /* Update the statistics cached by mallctl. */
+    sz = sizeof(epoch);
     je_mallctl("epoch", &epoch, &sz, &epoch, sz);
+    sz = sizeof(size_t);
     /* Unlike RSS, this does not include RSS from shared libraries and other non
      * heap mappings. */
     je_mallctl("stats.resident", resident, &sz, NULL, 0);
diff --git a/tests/unit/memefficiency.tcl b/tests/unit/memefficiency.tcl
index 4daf85c7..f9006ace 100644
--- a/tests/unit/memefficiency.tcl
+++ b/tests/unit/memefficiency.tcl
@@ -48,7 +48,8 @@ start_server {tags {"defrag"}} {
             r config set maxmemory-policy allkeys-lru
             r debug populate 700000 asdf 150
             r debug populate 170000 asdf 300
-            after 20 ;# serverCron only updates the info once in 10ms
+            r ping ;# trigger eviction following the previous population
+            after 120 ;# serverCron only updates the info once in 100ms
             set frag [s allocator_frag_ratio]
             if {$::verbose} {
                 puts "frag $frag"
@@ -68,11 +69,12 @@ start_server {tags {"defrag"}} {
                 [s active_defrag_running] eq 0
             } else {
                 puts [r info memory]
+                puts [r memory malloc-stats]
                 fail "defrag didn't stop."
             }
 
             # test the the fragmentation is lower
-            after 20 ;# serverCron only updates the info once in 10ms
+            after 120 ;# serverCron only updates the info once in 100ms
             set frag [s allocator_frag_ratio]
             if {$::verbose} {
                 puts "frag $frag"
@@ -140,7 +142,7 @@ start_server {tags {"defrag"}} {
             assert {[r dbsize] == 250008}
 
             # start defrag
-            after 20 ;# serverCron only updates the info once in 10ms
+            after 120 ;# serverCron only updates the info once in 100ms
             set frag [s allocator_frag_ratio]
             if {$::verbose} {
                 puts "frag $frag"
@@ -167,7 +169,7 @@ start_server {tags {"defrag"}} {
             }
 
             # test the the fragmentation is lower
-            after 20 ;# serverCron only updates the info once in 10ms
+            after 120 ;# serverCron only updates the info once in 100ms
             set frag [s allocator_frag_ratio]
             set max_latency 0
             foreach event [r latency latest] {