[SKL]Export XSAVE AVX state in /proc/pid
Bug #1801219 reported by
quanxian
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| intel |
Fix Released
|
Undecided
|
Unassigned | ||
| linux (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned | ||
Bug Description
Description
There is some interest to separate AVX512 using processes from non AVX processes to get higher frequency.
A user space tool doing this needs to know whether AVX is used. One way would be to export the information from the XSAVE state from the last context switch in /proc/pid/*
Should report if AVX or AVX512 state is non INIT.
Target Kernel: 5.2
Target Release: 19.10
| description: | updated |
| description: | updated |
| tags: |
added: intel-kernel-19.10 removed: intel-kernel-19.04 |
Revision history for this message
| Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote Missing required logs. | #1 |
| Changed in linux (Ubuntu): | |
| status: | New → Incomplete |
| tags: | added: eoan |
Revision history for this message
| quanxian (quanxian-wang) wrote | #2 |
| Changed in intel: | |
| status: | New → Fix Committed |
| Changed in intel: | |
| status: | Fix Committed → Fix Released |
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This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1801219
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.