WO2008042592A3 - Récupération progressive de l'espace mémoire - Google Patents

Récupération progressive de l'espace mémoire Download PDF

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Publication number
WO2008042592A3
WO2008042592A3 PCT/US2007/078817 US2007078817W WO2008042592A3 WO 2008042592 A3 WO2008042592 A3 WO 2008042592A3 US 2007078817 W US2007078817 W US 2007078817W WO 2008042592 A3 WO2008042592 A3 WO 2008042592A3
Authority
WO
WIPO (PCT)
Prior art keywords
garbage collection
phased garbage
write
phased
metablock
Prior art date
Application number
PCT/US2007/078817
Other languages
English (en)
Other versions
WO2008042592A2 (fr
Inventor
Sergey Anatolievich Gorobets
Original Assignee
Sandisk Corp
Sergey Anatolievich Gorobets
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/541,371 external-priority patent/US7444463B2/en
Priority claimed from US11/540,778 external-priority patent/US7464216B2/en
Application filed by Sandisk Corp, Sergey Anatolievich Gorobets filed Critical Sandisk Corp
Publication of WO2008042592A2 publication Critical patent/WO2008042592A2/fr
Publication of WO2008042592A3 publication Critical patent/WO2008042592A3/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0253—Garbage collection, i.e. reclamation of unreferenced memory
    • G06F12/0269—Incremental or concurrent garbage collection, e.g. in real-time systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7203—Temporary buffering, e.g. using volatile buffer or dedicated buffer blocks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7205—Cleaning, compaction, garbage collection, erase control

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Memory System (AREA)
  • Recording Measured Values (AREA)

Abstract

L'invention concerne un procédé s'appliquant à la récupération progressive de l'espace mémoire et consistant à recevoir une commande d'écriture pour inscrire une écriture mémoire dans un métabloc, effectuer une première partie de l'opération de récupération de l'espace mémoire et stocker l'écriture mémoire dans une partie tampon du métabloc.
PCT/US2007/078817 2006-09-29 2007-09-19 Récupération progressive de l'espace mémoire WO2008042592A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/541,371 2006-09-29
US11/541,371 US7444463B2 (en) 2006-09-29 2006-09-29 System for phased garbage collection with state indicators
US11/540,778 2006-09-29
US11/540,778 US7464216B2 (en) 2006-09-29 2006-09-29 Method for phased garbage collection with state indicators

Publications (2)

Publication Number Publication Date
WO2008042592A2 WO2008042592A2 (fr) 2008-04-10
WO2008042592A3 true WO2008042592A3 (fr) 2008-06-12

Family

ID=39198264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/078817 WO2008042592A2 (fr) 2006-09-29 2007-09-19 Récupération progressive de l'espace mémoire

Country Status (2)

Country Link
TW (1) TWI346286B (fr)
WO (1) WO2008042592A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8285970B2 (en) * 2008-11-06 2012-10-09 Silicon Motion Inc. Method for managing a memory apparatus, and associated memory apparatus thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050141312A1 (en) * 2003-12-30 2005-06-30 Sinclair Alan W. Non-volatile memory and method with non-sequential update block management
US20060161728A1 (en) * 2005-01-20 2006-07-20 Bennett Alan D Scheduling of housekeeping operations in flash memory systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050141312A1 (en) * 2003-12-30 2005-06-30 Sinclair Alan W. Non-volatile memory and method with non-sequential update block management
US20060161728A1 (en) * 2005-01-20 2006-07-20 Bennett Alan D Scheduling of housekeeping operations in flash memory systems

Also Published As

Publication number Publication date
TW200821830A (en) 2008-05-16
TWI346286B (en) 2011-08-01
WO2008042592A2 (fr) 2008-04-10

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