A method of tying related process threads within non-related applications together in terms of memory paging behavior. In a data processing system, a first process thread is related to one or more "partner" threads within separate high latency storage locations. The kernel analyzes the memory "page-in" patterns of multiple threads and identifies one or more partner threads of the first thread based on user input, observed memory page-in patterns, and/or pre-defined identification information within the thread data structures. The kernel marks the first thread and its corresponding related partner threads with a unique thread identifier. When the first thread is subsequently paged into a lower latency memory, the kernel also pages-in the related partner threads that are marked with the unique thread identifier in lockstep. Tying related threads from non-related applications together in terms of memory paging behavior thus eliminates memory management delays.

 
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