The Performance Index function (AIOBENCH) is a useful performance measurement tool available in Sage X3 and this feature was significantly improved in 2021 R2 (12.0.26)  

Unfortunatley these improvements have also introduced an unwanted change in the way the performance index values are calculated, making them incomparable to previous versions, as well as some unwanted messages in the report.  

The supplied hotfix will resolve these issues, giving results that are calculated consistantly with previous versions.  You can download the hotfix file "WX_246625_R090_026.zip" from the UKI FTP site

For more details about this Performance Index you can check the Online help or the KB article "What is Sage X3 performance measurement tool"