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 Also in the download section you can find the [[I2CIO|I2CIO driver library]] for the PCF8574* I2C IO expander ASIC. The library has been tested with the [[|**LCDI2CextraIO**]] board. 
+=== Performance benchmarking ===
+Each supported and tested library class has gone through a performance benchmark and it is compared with respect to the original LiquidCrystal library.
+==== Benchmakrs ====
+**Benchmark 1**: write every position of the LCD one by one.
+**Benchmark 2**: write a bar graph using the entire LCD to draw the bars. This has 5 writes per LCD position.
+**Benchmark 3**:
 === Version ===
 Current New LiquidCrystal is the latest zip file in the download section.