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https://issues.apache.org/jira/browse/TS-4957?focusedWorklogId=31446&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-31446
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ASF GitHub Bot logged work on TS-4957:
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Author: ASF GitHub Bot
Created on: 02/Nov/16 17:53
Start Date: 02/Nov/16 17:53
Worklog Time Spent: 10m
Work Description: GitHub user jrushford opened a pull request:
https://github.com/apache/trafficserver/pull/1171
TS-4957: Make the use of madvise() with MADV_DONTDUMP configurable.
(cherry picked from commit 514d3fd7de5841b8a74cd32bed001db9b479764f)
Backport PR to 6.2.x
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jrushford/trafficserver ts-4957
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/trafficserver/pull/1171.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1171
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Issue Time Tracking
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Worklog Id: (was: 31446)
Time Spent: 1h (was: 50m)
> Make the use of madvise() with MADV_DONTDUMP configurable
> ---------------------------------------------------------
>
> Key: TS-4957
> URL: https://issues.apache.org/jira/browse/TS-4957
> Project: Traffic Server
> Issue Type: Improvement
> Components: Core
> Reporter: John Rushford
> Assignee: John Rushford
> Fix For: 7.1.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> We have run into problems with ATS 5.3.x when using madvise() with the
> MADV_DONTDUMP option to exclude IO buffers from core files. Under load, we
> have seen high cpu loads and very slow time to serve times when allocating IO
> buffers and marking them with this flag. We have had to disable calls to
> madvise() in ats_madvise(), rebuild and redeploy to fix this problem. We'd
> like to make the use of madvise() with the MADV_DONTDUMP option configurable.
> The PR associated with this ticket uses a patch from TS-3417 that implements
> making MADV_DONTDUMP configurable.
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