diff --git a/README.md b/README.md
index 65052a62e32936213161d0fa5cd82fd454502267..01ad52c0175de565e23b929f328d1df2c8b1491c 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,11 @@ The binary takes a file (in.bin) and applies all operations on the data in this
 Currently the file is read in binary mode and converted to a long-array for sorting purposes.
 
 Insertion-sort is disabled when over 150k elements are loaded.
-Selection-sort is disabled when over 250k elements are loaded.
\ No newline at end of file
+Selection-sort is disabled when over 250k elements are loaded.
+
+When generating input-data:
+*  dd if=/dev/urandom of=in.bin bs=8 count=150000 (for all sorting algorithms)
+*  dd if=/dev/urandom of=in.bin bs=8 count=250000 (to exclude insertion-sort)
+*  anything with count above 250000 disables both.
+
+Currently multithreaded merge-sort uses hardcoded 256 threads
\ No newline at end of file