Patents
US 8725950 B2: Horizontally-shared cache victims in multiple core processors
- Granted
- 2014-05-13
- Filed
- 2010-06-30 application 12828056
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A processor includes multiple processor core units, each including a processor core and a cache memory. Victim lines evicted from a first processor core unit's cache may be stored in another processor core unit's cache, rather than written back to system memory. If the victim line is later requested by the first processor core unit, the victim line is retrieved from the other processor core unit's cache. The processor has low latency data transfers between processor core units. The processor transfers victim lines directly between processor core units' caches or utilizes a victim cache to temporarily store victim lines while searching for their destinations. The processor evaluates cache priority rules to determine whether victim lines are discarded, written back to system memory, or stored in other processor core units' caches. Cache priority rules can be based on cache coherency data, load balancing schemes, and architectural characteristics of the processor.
Source: PVGPATDIS, file of 2026-04-10 (ipg140513.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| MIPS Technologies, Inc. 81 patents | US company or organization | Mountain View, CA | MIPS TECHNOLOGIES, INC. State business registration EXACT high confidence: identical full name and state MIPS TECHNOLOGIES INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Sanjay Vishin | Sunnyvale, CA | 11 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G06F | Electric digital data processing | G06F12/0806 | PVGPATDIS, file of 2026-04-10 |
| Y02D | Climate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use | Y02D10/00 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-12-29 | Release of security interest Release of security interest | CAPITAL FINANCE ADMINISTRATION, LLC, AS ADMINISTRATIVE AGENT signed 2022-12-29 | MIPS TECH, LLC SAN JOSE, CA WAVE COMPUTING INC. SAN JOSE, CA | 62251/251 | PASDL, file of 2026-10-15 |
| 2021-06-14 | Release of security interest Release of security interest | WAVE COMPUTING LIQUIDATING TRUST signed 2021-06-11 | MIPS TECH, INC. SAN JOSE, CA HELLOSOFT, INC. SAN JOSE, CA WAVE COMPUTING (UK) LIMITED SAN JOSE, CA IMAGINATION TECHNOLOGIES, INC. SAN JOSE, CA CAUSTIC GRAPHICS, INC. SAN JOSE, CA MIPS TECH, LLC SAN JOSE, CA WAVE COMPUTING, INC. SAN JOSE, CA | 56589/606 | PASDL, file of 2026-10-15 |
| 2021-06-14 | Security interest Security interest Security interest | MIPS TECH, LLC signed 2021-06-11 WAVE COMPUTING, INC. signed 2021-06-11 | CAPITAL FINANCE ADMINISTRATION, LLC CHICAGO, IL | 56558/903 | PASDL, file of 2026-10-15 |
| 2021-02-26 | Security interest Security interest Security interest | WAVE COMPUTING, INC. signed 2021-02-26 MIPS TECH, LLC signed 2021-02-26 MIPS TECH, INC. signed 2021-02-26 HELLOSOFT, INC. signed 2021-02-26 WAVE COMPUTING (UK) LIMITED signed 2021-02-26 IMAGINATION TECHNOLOGIES, INC. signed 2021-02-26 CAUSTIC GRAPHICS, INC. signed 2021-02-26 | WAVE COMPUTING LIQUIDATING TRUST PACIFIC PALISADES, CA | 55429/532 | PASDL, file of 2026-10-15 |
| 2018-08-09 | Name change Change of name | MIPS TECH LIMITED signed 2017-11-07 | MIPS TECH, LLC SANTA CLARA, CA | 46752/698 | ECORSEXC, file of 2026-09-25 |
| 2018-04-11 | Name change Change of name | IMAGINATION TECHNOLOGIES, LLC signed 2017-11-07 | MIPS TECH, LLC SANTA CLARA, CA | 45927/625 | ECORSEXC, file of 2026-09-25 |
| 2017-04-20 | Name change Change of name | MIPS TECHNOLOGIES, INC. signed 2014-03-10 | IMAGINATION TECHNOLOGIES, LLC SANTA CLARA, CA | 42301/84 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.