Title:
COMPUTATION AND PLACEMENT OF ERROR CORRECTING CODES (ECC) IN COMPUTING SYSTEM DATA CACHE
Document Type and Number:
WIPO Patent Application WO/2023/169293
Kind Code:
A1
Abstract:
Computation, placement, and accessing of error correcting codes (ECC) in a computer system data cache enabling partial reads and writes to each line of data in the cache. For storing multiple compressed blocks, received at differing time periods, in a single cache line, the ECC for the first compressed block is stored in the ECC field of the cache and the ECC for the second and subsequently received compressed blocks is appended to the compressed data. Additionally, an auxiliary ECC cache may be constructed for temporarily holding a partial ECC for a partial read/write, and a new ECC for the partial read/write is computed using the partial ECC.
Inventors:
ABALI BULENT (US)
BUYUKTOSUNOGLU ALPER (US)
PRASKY BRIAN ROBERT (US)
BERGER DEANNA POSTLES DUNN (US)
BUYUKTOSUNOGLU ALPER (US)
PRASKY BRIAN ROBERT (US)
BERGER DEANNA POSTLES DUNN (US)
Application Number:
PCT/CN2023/079250
Publication Date:
September 14, 2023
Filing Date:
March 02, 2023
Export Citation:
Assignee:
IBM (US)
IBM CHINA CO LTD (CN)
IBM CHINA CO LTD (CN)
International Classes:
G06F11/10
Foreign References:
| US20210191812A1 | 2021-06-24 | |||
| US20140143635A1 | 2014-05-22 | |||
| US20220012126A1 | 2022-01-13 | |||
| CN113495862A | 2021-10-12 |
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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