Title
Shared address translation revisited.
Abstract
Modern operating systems avoid duplication of code and data when they are mapped by multiple processes by sharing physical memory through mechanisms like copy-on-write. Nonetheless, a separate copy of the virtual address translation structures, such as page tables, are still maintained for each process, even if they are identical. This duplication can lead to inefficiencies in the address translation process and interference within the memory hierarchy. In this paper, we show that on Android platforms, sharing address translation structures, specifically, page tables and TLB entries, for shared libraries can improve performance. For example, at a low level, sharing address translation structures reduces the cost of fork by more than half by reducing page table construction overheads. At a higher level, application launch and IPC are faster due to page fault elimination coupled with better cache and TLB performance when context switching.
Year
DOI
Venue
2016
10.1145/2901318.2901327
EuroSys
Field
DocType
Citations 
Memory hierarchy,Cache,Computer science,Page table,Page address register,Virtual address space,Real-time computing,Page fault,Translation lookaside buffer,Operating system,Context switch
Conference
5
PageRank 
References 
Authors
0.42
8
3
Name
Order
Citations
PageRank
Xiaowan Dong161.10
Sandhya Dwarkadas23504257.31
Alan L. Cox32635223.67