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Bug 1848102 - Restarting a docker container on the compute host introduces latency spikes in a RT KVM VM
Summary: Restarting a docker container on the compute host introduces latency spikes i...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: kernel-rt
Version: 7.6
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: rc
: ---
Assignee: Andrea Arcangeli
QA Contact: Pei Zhang
URL:
Whiteboard:
Depends On:
Blocks: 1730479
TreeView+ depends on / blocked
 
Reported: 2020-06-17 17:03 UTC by Mark Jones
Modified: 2023-10-06 20:41 UTC (History)
17 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-08-18 17:29:04 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
LLC load/miss perf event traces (33.14 KB, application/gzip)
2020-07-28 18:57 UTC, Marcelo Tosatti
no flags Details
Memory/Uncore mem perf event traces (1.87 MB, application/gzip)
2020-07-28 18:58 UTC, Marcelo Tosatti
no flags Details

Comment 42 Marcelo Tosatti 2020-07-01 15:11:52 UTC
status update:

There are function calls being made to isolated CPUs as follows:

1) flush_backlog  (quick fix written and tested)

2) do_sync_core   (quick fix written, testing now)

3) wrmsr_on_cpu   (not yet investigated)

Comment 87 Marcelo Tosatti 2020-07-28 18:57:39 UTC
Created attachment 1702716 [details]
LLC load/miss perf event traces

Comment 88 Marcelo Tosatti 2020-07-28 18:58:34 UTC
Created attachment 1702717 [details]
Memory/Uncore mem perf event traces


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