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From "Dan Hecht (Code Review)" <ger...@cloudera.org>
Subject [Impala-CR](cdh5-trunk) IMPALA-3161: (part 1) gperfutil SpinLock suffers from potential wakeup delay
Date Wed, 09 Mar 2016 17:43:07 GMT
Dan Hecht has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2501

Change subject: IMPALA-3161: (part 1) gperfutil SpinLock suffers from potential wakeup delay
......................................................................

IMPALA-3161: (part 1) gperfutil SpinLock suffers from potential wakeup delay

Backport this patch from gperfutil github:

>From b591d53af951eac60683237204464ebfec2c3afa Mon Sep 17 00:00:00 2001
From: "chappedm@gmail.com"
 <chappedm@gmail.com@6b5cf1ce-ec42-a296-1ba9-69fdba395a50>
Date: Sun, 10 Mar 2013 19:54:39 +0000
Subject: [PATCH] issue-490: Added support for acquire/release atomic exchange

The atomic ops API was missing support for all of the various
flavors of Acquire_AtomicExchange and Release_AtomicExchange
which have now been added.

Change-Id: Ic4b9a5d1e3b95f222c92af5cd7b50ddb0c576f08
git-svn-id: http://gperftools.googlecode.com/svn/trunk@194 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
---
M thirdparty/gperftools-2.0/src/base/atomicops-internals-arm-generic.h
M thirdparty/gperftools-2.0/src/base/atomicops-internals-arm-v6plus.h
M thirdparty/gperftools-2.0/src/base/atomicops-internals-linuxppc.h
M thirdparty/gperftools-2.0/src/base/atomicops-internals-macosx.h
M thirdparty/gperftools-2.0/src/base/atomicops-internals-windows.h
M thirdparty/gperftools-2.0/src/base/atomicops-internals-x86.h
M thirdparty/gperftools-2.0/src/base/atomicops.h
M thirdparty/gperftools-2.0/src/tests/atomicops_unittest.cc
8 files changed, 281 insertions(+), 50 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/01/2501/1
-- 
To view, visit http://gerrit.cloudera.org:8080/2501
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic4b9a5d1e3b95f222c92af5cd7b50ddb0c576f08
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Dan Hecht <dhecht@cloudera.com>

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