COSBI OpenSourceMark is the definitive, comprehensive open source benchmark. The Windows XP GUI framework and many tests are written in Delphi 2005, but a number of tests are in C and C++ (both VC++ and g++). There are Linux projects also.
Please investigate the latest download from this project. I extracted it and ran a virus scan on it using both ClamWin and Malwarebytes Anti-Malware and there were no hits. Having a .dll in the root directory looked a little funky to me so I checked out it's details. That's showed the original filename was BackdoorDll.dll which got my attention (clue #1). Since the AV scans passed, I ran the batch files in the root directory to launch the program. It didn't erun so great on windows 7 so I killed all the processes (I had to actually use the Task Manager to stop the program - clue #2 ). After waking up this morning I noticed a 'backdoor.sys' process was running on my system. I killed it then looked in the Services section and there was a service named RAMOP with no description and set to 'manual' and not running. The service's info showed it running from my user account's temp dir (clue #3). I've never had a benchmark program have to install services on my machine in order for them to test my system. Someone may have injected some malware somewhere in the maintainers' build process. Due to the evidence presented above and the fact that the project hasn't been updated in 1.5 years, I solicit this project be shut down.