PowerLogix has released an OS 9.1-compatible beta version of its G3/G4 Cache Profiler.

Cache Profiler controls the company's G3 and G4 upgrades, handling the relationship between the upgrades and the CPU. The previously version of Cache Profiler is incompatible with Mac OS 9.1.

Using the non-OS 9.1 compatible software to drive upgrades on OS 9.1 Macs can lead to performance decreases. One effect is that the upgrade will cease to use its backside cache, which causes a major performance loss.

Cache Profiler 1.4b1 is available for download from PowerLogix.