added benchmark results

README.md

@@ -1,11 +1,43 @@
 **Design decisions**
+
 * built for speed and efficiency (within java)
 * uses storage format borrowed from SQLite with 1 exception: float is stored as f32 (SQLite only uses f64)
 * needs jdk 9 (VarHandles)
 * minimal reflection (once per creation of the list)
 
-* The only class (for now): [ContiguousList](https://github.com/shautvast/Contiguous/blob/main/lib/src/main/java/com/github/shautvast/contiguous/ContiguousList.java)
+* The only class (for
+  now): [ContiguousList](https://github.com/shautvast/Contiguous/blob/main/lib/src/main/java/com/github/shautvast/contiguous/ContiguousList.java)
 
 * Still in a very early stage
-  * the code is working
-  * but it remains to be seen if this is a good idea
+    * the code is working
+    * but it remains to be seen if this is a good idea
+
+**JMH Benchmark**
+
+| Benchmark  | Mode | Cnt |        Score |        Error | Units |
+|------------|------|----:|-------------:|-------------:|-------|
+| classic    | avgt |   5 | 13312478.471 | ± 259931.663 | ns/op |
+| contiguous | avgt |   5 | 13063782.511 | ± 451500.662 | ns/op |
+
+--> pretty much on par despite all the overhead for inspecting the list elements
+--> will try to squeeze out more performance
+
+```
+[ec2-user@ip-172-31-22-215 Contiguous]$ lscpu
+Architecture:          x86_64
+CPU op-mode(s):        32-bit, 64-bit
+Address sizes:         46 bits physical, 48 bits virtual
+Byte Order:            Little Endian
+CPU(s):                1
+On-line CPU(s) list:   0
+Vendor ID:             GenuineIntel
+Model name:            Intel(R) Xeon(R) CPU E5-2676 v3 @ 2.40GHz
+CPU family:            6
+Model:                 63
+Thread(s) per core:    1
+Core(s) per socket:    1
+Socket(s):             1
+Stepping:              2
+BogoMIPS:              4800.04
+```
+