Question
Pages of memory with this property are swapped between RAM and disk according to cache replacement algorithms that are commonly variants of Least Recently Used, or LRU. For 10 points each:
[10e] Name this property of memory that, while appearing to applications as a single contiguous range, is really an OS abstraction over a combination of noncontiguous physical memory blocks and swapped-out pages.
ANSWER: virtual memory
[10m] An inappropriate cache replacement algorithm might contribute to this situation, in which a processor’s collective working set is too large, causing excessive swapping of pages in and out of memory and greatly hindering its usable capacity.
ANSWER: thrashing
[10h] Description acceptable. One could minimize page faults and thus thrashing, all else being equal, by using Bélády’s impossible but theoretically optimal page replacement algorithm, which evicts the item with this property.
ANSWER: the page that will be used farthest in the future [accept equivalent descriptive answers like “the page with the latest expected access time”]
<Alistair Gray, Other Science - Computer Science>
Summary
2023 Chicago Open | 08/05/2023 | Y | 9 | 6.67 | 33% | 33% | 0% |
Data
Evans Hall destruction awaiters | BHSU | 0 | 0 | 0 | 0 |
Hang et al., Robert Browning | Teach Us to Outgrow Our Ladness | 0 | 0 | 0 | 0 |
I prefer really not to speak. If I speak I’m in big trouble | Team Name Think Detail | 0 | 0 | 0 | 0 |
The Plague (anime)" was redirected to: "Oran High School Host Club | I would prefer not to | 0 | 10 | 0 | 10 |
In Search of Things Past | The anti-STOON-dahl cabal (the tall Keyal et al.) | 10 | 0 | 0 | 10 |
Romanos IV Diogenes’ Macaroni Grill | The Canadians | 0 | 0 | 0 | 0 |
The Catastrophic Implosion of Packet Sub | remembrance of lost time | 10 | 10 | 0 | 20 |
wave2: trimming membership codes 9655377758gp | Curse you, Periplus the Platypus! | 10 | 10 | 0 | 20 |
Saint Peter Andre 3000 | [moderator voice] yes that is so tenpointscore! is your team feeling bonuspilled? | 0 | 0 | 0 | 0 |