Update PractRand memory usage examples.
diff --git a/commons-rng-examples/examples-stress/stress_test.md b/commons-rng-examples/examples-stress/stress_test.md
index 3d0b451..56cb3ed 100644
--- a/commons-rng-examples/examples-stress/stress_test.md
+++ b/commons-rng-examples/examples-stress/stress_test.md
@@ -218,13 +218,13 @@
| Argument | Max memory (KB) |
| --------- | ---------- |
| stdin32 -tf 1 -te 0 -tlmax 1TB | 732792 |
-| stdin32 -tf 2 -te 0 -tlmax 1TB | 1271424 |
| stdin64 -tf 1 -te 0 -tlmax 1TB | 800148 |
-| stdin64 -tf 2 -te 0 -tlmax 1TB | 1304116 |
-| stdin32 -tf 1 -te 0 -tlmax 4TB | ? |
-| stdin32 -tf 2 -te 0 -tlmax 4TB | 2314232 |
+| stdin -tf 2 -te 0 -tlmax 1TB | 1271424 |
+| stdin32 -tf 1 -te 0 -tlmax 4TB | 1239440 |
| stdin64 -tf 1 -te 0 -tlmax 4TB | 1324436 |
-| stdin64 -tf 2 -te 0 -tlmax 4TB | ? |
+| stdin -tf 2 -te 0 -tlmax 4TB | 2314232 |
+
+Note that the `-tf 2` option ignores the output mode of the RNG.
Given the large memory consumption on long running tests the machine resources may be better used
when RAM limited by running **PractRand** multi-threaded instead of running more single-threaded
