Oracle 11G RAC Interconnect IP Bendwidth Test

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在工作中，当我们装好11g ，12c的oracle RAC后，一般会去跑oracheck做最佳实践的测试，以判断该环境中主机参数（网络，如是linux还有内核参数，内存等），心跳网络速度等是否达到了Oracle 建议的最佳配置。如下是比较常见的测试新搭建 RAC 私有网络间带宽的方法：

cat test_interconnect_speed.sh

echo == 1M files x 100dd if=/dev/zero bs=1M count=100 |ssh rhel59dra-priv dd of=/dev/nullecho == 1M files x 1000dd if=/dev/zero bs=1M count=1000 |ssh rhel59dra-priv dd of=/dev/nullecho == 4M files x 100dd if=/dev/zero bs=4M count=100 |ssh rhel59dra-priv dd of=/dev/nullecho == 10M files x 100dd if=/dev/zero bs=10M count=100 |ssh rhel59dra-priv dd of=/dev/nullecho == 100M files x 100dd if=/dev/zero bs=100M count=100 |ssh rhel59dra-priv dd of=/dev/null

执行 test_interconnect_speed.sh，测试结果如下：

== 1M files x 100100+0 records in100+0 records out104857600 bytes (105 MB) copied, 1.99392 seconds, 52.6 MB/s200671+10061 records in204800+0 records out104857600 bytes (105 MB) copied, 1.89443 seconds, 55.4 MB/s== 1M files x 10001000+0 records in1000+0 records out1048576000 bytes (1.0 GB) copied, 18.505 seconds, 56.7 MB/s2012814+89686 records in2048000+0 records out1048576000 bytes (1.0 GB) copied, 18.4261 seconds, 56.9 MB/s== 4M files x 100100+0 records in100+0 records out419430400 bytes (419 MB) copied, 7.16756 seconds, 58.5 MB/s806277+34772 records in819200+0 records out419430400 bytes (419 MB) copied, 7.09103 seconds, 59.1 MB/s== 10M files x 100100+0 records in100+0 records out1048576000 bytes (1.0 GB) copied, 17.959 seconds, 58.4 MB/s2016332+86632 records in2048000+0 records out1048576000 bytes (1.0 GB) copied, 17.9087 seconds, 58.6 MB/s== 100M files x 100100+0 records in100+0 records out10485760000 bytes (10 GB) copied, 183.415 seconds, 57.2 MB/s20145249+862669 records in20480000+0 records out10485760000 bytes (10 GB) copied, 183.329 seconds, 57.2 MB/s

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