Adaptive Server performs redundant memory cleanup checking as a final integrity check after processing each task. In very high throughput environments, a slight performance improvement may be realized by skipping this cleanup error check. To turn off error checking, enter:
dbcc tune(cleanup,1)
The final cleanup frees up any memory a task might hold. If you turn the error checking off, but you get memory errors, reenable the checking by entering:
dbcc tune(cleanup,0)