====== SPEC CPU2006 ======
===== 安裝 SPEC =====
<blockquote>
<color red>It is generally not possible to do cross-compilation of Perl</color>, as Perl's build process involves running binaries generated during the build. Therefore, getting a toolset onto an embedded platform without a native compiler is most likely impossible. 
<cite>1.c. When to build the tools yourself [[http://www.spec.org/cpu2006/docs/tools-build.html#when2build]]</cite>
</blockquote>


  - SPEC 會用到的工具缺少 ARM 的 binary。建議使用 QEMU。或是採取另一種方法，請見 ''tools/src/perl-5.8.8/INSTALL''，它有說明如何 cross compile。<code bash>
$ wget http://people.debian.org/~aurel32/qemu/armel/vmlinuz-2.6.32-5-versatile
$ wget http://people.debian.org/~aurel32/qemu/armel/initrd.img-2.6.32-5-versatile
$ wget http://people.debian.org/~aurel32/qemu/armel/debian_squeeze_armel_desktop.qcow2
$ wget http://people.debian.org/~aurel32/qemu/armel/debian_squeeze_armel_standard.qcow2
# root/root; user/user
$ qemu-system-arm -M versatilepb -kernel vmlinuz-2.6.32-5-versatile \
  -initrd initrd.img-2.6.32-5-versatile \
  -hda debian_squeeze_armel_standard.qcow2 -append "root=/dev/sda1 console=ttyAMA0" -nographic
</code>
  - 修正 SPEC 的問題。<code bash>
$ cd tools/src/perl-5.8.8
# 中途會出現找不到以下檔案的訊息，請繼續。
$ mv t/op/sprintf.t t/op/sprintf.off
$ mv t/uni/sprintf.t t/uni/sprintf.off
$ mv t/op/sprintf2.t t/op/sprintf2.off
</code><diff>
--- makedepend.orig     2012-04-27 18:44:40.000000000 +0800
+++ makedepend  2012-04-27 17:35:33.000000000 +0800
@@ -103,7 +103,7 @@
     *.y) filebase=`basename $file .y` ;;
     esac
     case "$file" in
-    */*) finc="-I`echo $file | sed 's#/[^/]*$##`" ;;
+    */*) finc="-I`echo $file | sed 's#/[^/]*$##'`" ;;
     *)   finc= ;;
     esac
     $echo "Finding dependencies for $filebase$_o."
</diff><diff>
--- SysV.xs.orig        2012-04-27 19:43:11.000000000 +0800
+++ SysV.xs     2012-04-27 19:42:16.000000000 +0800
@@ -4,7 +4,7 @@

 #include <sys/types.h>
 #ifdef __linux__
-#   include <asm/page.h>
+//#   include <asm/page.h>
 #endif
 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
 #ifndef HAS_SEM
</diff>
  - 安裝 SPEC 會用到的工具。或是以 NFS 掛上已編譯好的 SPEC[(http://people.cs.nctu.edu.tw/~chenwj/log/QEMU/stefanha-2012-04-27.txt)]。<code bash>
$ apt-get update
$ apt-get install gcc g++ gfortran automake
# 避掉 "You haven't done a "make depend" yet" 的錯誤。
$ ln -sf /bin/bash /bin/sh
# 預設可使用網路，可以透過網路取得 SPEC tarball; 又或是掛載 ISO 檔。
$ cd ${SRC}/tools/src
$ ./build.sh
</code>
  * [[http://www.nslu2-linux.org/wiki/Optware/AddAPackageToOptware|You haven't done a "make depend" yet]]
  * [[http://ijij41.springnote.com/pages/5854695|spec 2006]]
  * [[http://www.spec.org/cpu2006/Docs/install-guide-unix.html|Installing SPEC CPU2006 Under Unix, Linux, and Mac OS X]]
===== 運行 SPEC =====
閱讀 [[http://www.spec.org/cpu2006/docs/|SPEC CPU2006 Documentation]]、[[http://www.spec.org/cpu2006/docs/config.html|SPEC CPU2006 Config Files]] 和 [[http://www.spec.org/cpu2006/docs/runspec.html|The 'runspec' Command]]。
<note tip>選項 ''--nobuild'' 可以避免重新編譯。</note>
  - 在 /data/Benchmarks/SPEC/CPU2006_v1.1_x86/config 底下生成一個設定檔。<code bash>
$ cp Example-linux64-amd64-gcc43.cfg chenwj-i71-example.cfg
</code>
  - 新增<code bash>
qemu = /path/to/qemu-i38
curdir = /tmp/chenwj/spec
# 測量結果放置處
output_root  = ${curdir}/spec_results
# summit 可以加上額外的指令及參數，預設為 $command
submit = $qemu $command
</code>
  - 建立軟連結，方便修改設定檔<code bash>
$ cd /tmp/chenwj/spec
$ ln -s /data/Benchmarks/SPEC/CPU2006_v1.1_x86/config/chenwj-i71-example.cfg .
$ cd /data/Benchmarks/SPEC/CPU2006_v1.1_x86
# 這樣才抓得到 runspec
$ . shrc
$ cd /tmp/chenwj/spec
$ runspec --config=chenwj-i71-example.cfg --iterations=1 --size=test mcf
</code>
   - 中止測量<key>C-z</key><code bash>
$ pstree -p | grep runspec -A2 -B2
$ killall
</code>
若要同時執行多個 benchmark，請手動並將其至於背景執行。
  * [[http://www.spec.org/cpu2006/docs/system-requirements.html|SPEC CPU2006 System Requirements]]
  * [[http://www.spec.org/cpu2006/docs/runspec-avoidance.html|Runspec Avoidance]]

<code bash>
declare -a benchmark=(
  "400.perlbench"
  "401.bzip2"
  "403.gcc"
  "410.bwaves"
  "416.gamess"
  "429.mcf"
  "433.milc"
  "434.zeusmp"
  "435.gromacs"
  "436.cactusADM"
  "437.leslie3d"
  "444.namd"
  "445.gobmk"
  "447.dealII"
  "450.soplex"
  "453.povray"
  "454.calculix"
  "456.hmmer"
  "458.sjeng"
  "459.GemsFDTD"
  "462.libquantum"
  "464.h264ref"
  "465.tonto"
  "470.lbm"
  "471.omnetpp"
  "473.astar"
  "481.wrf"
  "482.sphinx3"
  "483.xalancbmk"
  "998.specrand"
  "999.specrand"
)

for bench in "${benchmark[@]}"; do
  runspec --config=${CONFIG} --iterations=1 --size=test $bench
done
</code>
===== Cross Compile =====
修改 CC 和 CXX 成 cross compiler。<code bash>
$ runspec --config=chenwj-armv5.cfg --action=build --action setup all
</code>
  * [[http://www.ece.rochester.edu/~parihar/spec2k6.html|SPEC CPU2006 Compilation for SimpleScalar/Alpha-OSF]]
====== SPEC Virt ======
需安裝 JDK，不建議安裝 [[http://gcc.gnu.org/java/|GCJ]]。
<code bash>
$ apt-get install openjdk-6-jre
$ java -jar setup.jar -i console
# 修改設定檔以符合自身需求。
$ vi /opt/SPECvirt/Control.config
</code>
<code bash>
$ -net nic -net tap
</code>
  * [[http://www.spec.org/virt_sc2010/|SPECvirt_sc2010]]
  * [[http://www.spec.org/virt_sc2010/docs/SPECvirt_UserGuide.html|SPECvirt_sc2010 User's Guide]]
  * [[http://www.spec.org/virt_sc2010/docs/SPECvirt_Client_Harness_UserGuide.html|SPECvirt Client Harness User's Guide]]