TY - GEN
T1 - Protection traps and alternatives for memory management of an object-oriented language
AU - Hosking, Antony L.
AU - Moss, J. Eliot B.
N1 - Publisher Copyright:
© 1993 ACM.
PY - 1993/12/1
Y1 - 1993/12/1
N2 - Many operating systems allow user programs to specify the protection level (inaccessible, read-only, read-write) of pages in their virtual memory address space, and to handle any protection violations that may occur. Such page-protection techniques have been exploited by several user-level algorithms for applications including generational garbage collection and persistent stores. Unfortunately, modern hardware has made efficient handling of page protection faults more difficult. Moreover, page-sized granularity may not match the natural granularity of a given application. In light of these problems, we reevaluate the usefulness of page-protection primitives in such applications, by comparing the performance of implementations that make use of the primitives with others that do not. Our results show that for certain applications software solutions outperform solutions that rely on page-protection or other related virtual memory primitives.
AB - Many operating systems allow user programs to specify the protection level (inaccessible, read-only, read-write) of pages in their virtual memory address space, and to handle any protection violations that may occur. Such page-protection techniques have been exploited by several user-level algorithms for applications including generational garbage collection and persistent stores. Unfortunately, modern hardware has made efficient handling of page protection faults more difficult. Moreover, page-sized granularity may not match the natural granularity of a given application. In light of these problems, we reevaluate the usefulness of page-protection primitives in such applications, by comparing the performance of implementations that make use of the primitives with others that do not. Our results show that for certain applications software solutions outperform solutions that rely on page-protection or other related virtual memory primitives.
UR - http://www.scopus.com/inward/record.url?scp=85060874180&partnerID=8YFLogxK
U2 - 10.1145/168619.168628
DO - 10.1145/168619.168628
M3 - Conference contribution
AN - SCOPUS:85060874180
T3 - SOSP 1993 - Proceedings of the 14th ACM Symposium on Operating Systems Principles
SP - 106
EP - 119
BT - SOSP 1993 - Proceedings of the 14th ACM Symposium on Operating Systems Principles
PB - Association for Computing Machinery, Inc
T2 - 14th ACM Symposium on Operating Systems Principles, SOSP 1993
Y2 - 5 December 1993 through 8 December 1993
ER -