STREAM benchmark tool

The STREAM Benchmark: Computer Memory Bandwidth

홈페이지 : 
http://www.streambench.org/
http://www.cs.virginia.edu/stream/

                   
설치방법 :
1. binary 파일 다운 로드
# wget http://www.cs.virginia.edu/stream/FTP/Contrib/Intel/linux/stream_l

2. 실행권한 부여
# chmod +x stream_l

3. 라이브러리 설치
# yum install compat-libstdc++-296.i686

4. 링크 생성
# cd /usr/lib
# ln -s libstdc++-3-libc6.2-2-2.10.0.so libstdc++-libc6.0-1.so.2

5. 실행
# cd "stream_l 다운받은 디렉토리"
# ./stream_l 2400 20


ex)
[root@localhost streambenchmark]# ./stream_l 2400 20
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 999936, Offset = 0
Total memory required = 24.9 MB.
Each test is run 20 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:        2885.5105       0.0062       0.0055       0.0071
Scale:       2865.8078       0.0062       0.0056       0.0077
Add:         3312.2315       0.0078       0.0072       0.0089
Triad:       3358.5212       0.0078       0.0071       0.0089