| 发明名称 | System and device for page replacement control between virtual and real memory spaces | ||
| 摘要 | A virtual memory management apparatus of an embodiment is embedded in a computing machine 80 and is provided with an application program 21, an operating system 22, a volatile memory 11, and a nonvolatile memory 12. The volatile memory 11 is provided with a plurality of clean pages. The nonvolatile memory 12 is provided with a plurality of dirty pages and a page table memory unit 51. The operating system 22 is provided with a virtual memory management unit 23 which includes a page transfer unit 25. | ||
| 申请公布号 | US9471507(B2) | 申请公布日期 | 2016.10.18 |
| 申请号 | US201514613519 | 申请日期 | 2015.02.04 |
| 申请人 | KABUSHIKI KAISHA TOSHIBA | 发明人 | Yoshida Hideki;Kanai Tatsunori;Tarui Masaya;Yamada Yutaka |
| 分类号 | G06F12/08;G06F12/10;G06F12/12;G06F12/06;G06F12/02 | 主分类号 | G06F12/08 |
| 代理机构 | Amin, Turocy & Watson LLP | 代理人 | Amin, Turocy & Watson LLP |
| 主权项 | 1. A cache device including a primary memory unit and a secondary memory unit having a lower memory access speed than the primary memory unit, the cache device comprising: a volatile memory located in the primary memory unit, the volatile memory being configured to store data of a clean page being identical to data stored in the secondary memory unit; a nonvolatile memory located in the primary memory unit, the nonvolatile memory being configured to store data of a dirty page different from the data stored in the secondary memory unit and having a page table at least including information indicating which page is the dirty page; and a page transfer unit configured to transfer the data, of the clean page to the nonvolatile memory when data is written to the clean page on the volatile memory. | ||
| 地址 | Tokyo JP | ||