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James Peach commented on TS-4957: --------------------------------- This triggers a kernel problem right? Which kernel versions (approx) would need this? > 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 > > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)