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diff --git a/simclist-1.5/perftest/README-perftest.txt b/simclist-1.5/perftest/README-perftest.txt
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+SimCList performance test cases
+
+===== ins.c
+insert 10 000 000 (ten million) elements into a list, with element autocopy
+disabled.
+Compile:
+    gcc -O2 -I.. -std=c99 -o ins ins.c ../simclist.c
+Use:
+    time ./ins
+
+
+===== ext.c
+insert 1 000 000 (one million) elements with element autocopy, then extracts 1
+000 elements at random position (from a Uniform(0, list_size) probability
+density function).
+Compile:
+    gcc -O2 -I.. -std=c99 -o ext ext.c ../simclist.c
+Use:
+    time ./ext
+
+
+===== sort.c
+insert 1 000 000 elements with autocopy, then sorting.
+
+Compile:
+    # for testing the default setup
+    gcc -O2 -I.. -std=c99 -o sort sort.c ../simclist.c
+    # for testing with threading enabled
+    gcc -DSIMCLIST_WITH_THREADS -O2 -I.. -std=c99 -o sort sort.c ../simclist.c
+Use:
+    # generate data to insert into the list
+    # e.g.  for ((i = 0; i<1000000; i++)); do echo $RANDOM; done >randdata.txt
+    time ./sort < randdata.txt
+