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1. (WO2017188985) COMPRESSED PAGES HAVING DATA AND COMPRESSION METADATA

Pub. No.:    WO/2017/188985    International Application No.:    PCT/US2016/030082
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Sat Apr 30 01:59:59 CEST 2016
IPC: G06F 12/1009
G06F 12/1036
G06F 12/1045
G06F 12/0802
Applicants: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventors: IYER, Shankar
MURTHY, Srinivasa D
NAZARI, Siamak
SADE, Gilad
Title: COMPRESSED PAGES HAVING DATA AND COMPRESSION METADATA
Abstract:
Examples include compressed pages having data and compression metadata. Some examples include receiving a write request containing write data, storing the write data in data cache, and applying a page fit process to the write data. In some such examples, a virtual page table entry in a virtual page table may be generated for the processed write data. The virtual page table entry may include a compression index and a page address. An inline compression of the processed write data may be performed to compress and store the processed write data in a compressed page at a location associated with the compression index. In some examples, the compressed page may include a compression metadata having a reference count, a compressed page offset, and a virtual page address.