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https://issues.apache.org/jira/browse/ACCUMULO-2749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13984666#comment-13984666
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Josh Elser edited comment on ACCUMULO-2749 at 4/29/14 7:15 PM:
---------------------------------------------------------------
[~kturner], you just made me day with that one. Magical native maps will now
have a special place in my memory. Looking at my package manager history, I
don't think I've upgraded since making 1.5.1.
{noformat}
$ g++ -v
Using built-in specs.
COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.7.3-r1/work/gcc-4.7.3/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/include/g++-v4
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/python
--enable-languages=c,c++,objc,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--enable-checking=release --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo 4.7.3-r1 p1.4, pie-0.5.5' --enable-libstdcxx-time
--enable-shared --enable-threads=posix --enable-__cxa_atexit
--enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64
--disable-altivec --disable-fixed-point --enable-targets=all --disable-libgcj
--enable-libgomp --disable-libmudflap --disable-libssp --enable-lto
--without-cloog --without-ppl
Thread model: posix
gcc version 4.7.3 (Gentoo 4.7.3-r1 p1.4, pie-0.5.5)
{noformat}
Output from the makefile for full disclosure
{noformat}
g++ -m64 -g -fPIC -shared -O2 -fno-omit-frame-pointer -fno-strict-aliasing
-Wall -I/home/elserj/.gentoo/java-config-2/current-user-vm/include
-I/home/elserj/.gentoo/java-config-2/current-user-vm/include/linux -Ijavah -o
libaccumulo.so nativeMap/org_apache_accumulo_tserver_NativeMap.cc
{noformat}
was (Author: elserj):
[~kturner], you just made me day with that one. Magical native maps will now
have a special place in my memory. Looking at my package manager history, I
don't think I've upgraded since making 1.5.1.
{noformat}
$ g++ -v
Using built-in specs.
COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.7.3-r1/work/gcc-4.7.3/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/include/g++-v4
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/python
--enable-languages=c,c++,objc,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--enable-checking=release --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo 4.7.3-r1 p1.4, pie-0.5.5' --enable-libstdcxx-time
--enable-shared --enable-threads=posix --enable-__cxa_atexit
--enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64
--disable-altivec --disable-fixed-point --enable-targets=all --disable-libgcj
--enable-libgomp --disable-libmudflap --disable-libssp --enable-lto
--without-cloog --without-ppl
Thread model: posix
gcc version 4.7.3 (Gentoo 4.7.3-r1 p1.4, pie-0.5.5)
{noformat}
> 1.6.0RC4 slower than 1.5.1
> --------------------------
>
> Key: ACCUMULO-2749
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2749
> Project: Accumulo
> Issue Type: Bug
> Reporter: Keith Turner
> Assignee: Eric Newton
> Fix For: 1.6.0
>
> Attachments: ingest_test.diff
>
>
> I am seeing consistently slower write rates when comparing 1.5.1 and 1.6.0
> RC4. Following env :
> * hadoop 2.2.0
> * Zookeeper 3.4.5
> * Centos 6 (native, not a VM)
> * using examples/3GB/native-standalone config
> * setting tserver.mutation.queue.max 4M
> * I am running test/system/test1/ingest_test.sh
> * single node
> Saw the following rates
> {noformat}
> 1.5.1 aggregate rate : 200,806 records/sec
> 1.6.0 aggregate rate : 181,264 records/sec (90%)
> {noformat}
> Reran test setting table.walog.enabled=false
> {noformat}
> 1.5.1 aggregate rate : 302,307 records/sec
> 1.6.0 aggregate rate : 232,685 records/sec (77%)
> {noformat}
> Since the relative performance gap seemed to widen when disabling walog I
> tried another test where I disabled walogs and set the devnull iterator
> {noformat}
> 1.5.1 aggregate rate : 554,853 records/sec
> 1.6.0 aggregate rate : 373,556 records/sec (67%)
> {noformat}
> The relative performance gap grew even further.
> Used the following command to enable dev null iterator in 1.5.1 and RC4
> {noformat}
> config -t test_ingest -s
> table.iterator.minc.devnull=10,org.apache.accumulo.core.iterators.DevNull
> {noformat}
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