Bug 9470 - Add large memory copy for c86 processing power
Summary: Add large memory copy for c86 processing power
Status: NEW
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: X86 (show other bugs) X86
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: Guanjun
QA Contact: shuming
URL:
Whiteboard:
Keywords: Function, Performance
Depends on:
Blocks:
 
Reported: 2024-07-04 11:24 UTC by qiuzhiteng
Modified: 2024-12-02 10:43 UTC (History)
2 users (show)

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Description qiuzhiteng hygon_group 2024-07-04 11:24:47 UTC 
Description of problem:
Hygon processor has performance bottleneck when copying big data between kernel mode and user mode

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.Use i387 extended instructions + prefetcha instructions + NT instructions to optimize the copy function
2.Save i387 registers when switching processes
3.Because the context can be saved, it is designed to be a non-atomic copy.

Actual results:


Expected results:


Additional info:
Comment 1 小龙 admin 2024-07-04 14:25:18 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3458
Comment 2 小龙 admin 2024-07-04 17:29:06 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3459
Comment 3 小龙 admin 2024-07-06 14:58:34 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3465
Comment 4 小龙 admin 2024-07-12 15:39:04 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3484
Comment 5 小龙 admin 2024-07-12 15:58:06 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3485
Comment 6 小龙 admin 2024-07-12 17:59:38 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3487
Comment 7 小龙 admin 2024-07-13 10:55:12 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3489
Comment 8 小龙 admin 2024-07-15 21:10:43 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3492
Comment 9 小龙 admin 2024-07-16 11:35:26 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3495
Comment 10 小龙 admin 2024-07-16 11:35:27 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3495
Comment 11 小龙 admin 2024-07-16 14:31:21 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3496