Update docs/loader.md

Co-authored-by: Dmitrii Ustiugov <[email protected]>

docs/loader.md

@@ -124,7 +124,9 @@ For to configure the workload for load generator, please refer to `docs/configur
 There are a couple of constants that should not be exposed to the users. They can be examined and changed
 in `pkg/common/constants.go`.
 
-We suggest at most 5 functions per core with SMT disabled. For example, 80 functions for 16-core node. If you increase function instance longer than that, trace replaying will start to fail.
+Sample sizes appropriate for performance evaluation vary depending on the platform. 
+As a starting point for fine-tuning, we suggest at most 5 functions per core with SMT disabled. 
+For example, 80 functions for a 16-core node. With larger sample sizes, trace replaying may lead to failures in function invocations.
 
 ## Build the image for a synthetic function