diff --git a/src/benchmarks/perf.cfg b/src/benchmarks/perf.cfg
index 7fa71690e09..ede7ac6536b 100644
--- a/src/benchmarks/perf.cfg
+++ b/src/benchmarks/perf.cfg
@@ -6,8 +6,8 @@ repeats = 3
 [obj_tx_alloc_small_v_thread]
 bench = obj_tx_alloc
 group = pmemobj
-ops-per-thread = 200000
-threads = 1:+1:32
+ops-per-thread = 6000000
+threads = 1:*2:32
 type-number = per-thread
 data-size = 256
 
@@ -33,8 +33,8 @@ data-size = 64:*2:32768
 [obj_pmalloc_small_v_threads]
 bench = pmalloc
 group = pmemobj
-ops-per-thread = 200000
-threads = 1:+1:32
+ops-per-thread = 2000000
+threads = 1:*2:32
 data-size = 100
 
 # pmalloc (size = 128k) vs threads