This tool compares two sets of Vdbench output directories and shows the delta iorate or fwdrate and response time and optionally the data rate in 9 different colors: light green is good, dark green is better, red is bad, etc. Look at sample screen below.
You may give the tool either two Vdbench output directories, e.g. /run1 and /run2, or the parents of several Vdbench output directories, e.g. /test1 and /test2, where test1 and test2 have one or more subdirectories, e.g. /test1/run1, /test1/run2, etc.
To run Vdbench workload compare, enter ./vdbench compare output1 output2
Optional: -o out.txt will create a tab separated file of the results without displaying.
这个工具可以比较两组Vdbench输出目录，显示iorate或fwdrate、response time的变化，以及可选的数据速率，使用9种不同的颜色来标记：浅绿色表示好，深绿色表示更好，红色表示不好，等等。
您可以给工具提供两个Vdbench输出目录，例如/run1和/run2，或者几个Vdbench输出目录的父目录，例如/test1和/test2，其中test1和test2有一个或多个子目录，例如/test1/run1、/test1/run2等。
要运行Vdbench工作负载比较，请输入./vdbench compare output1 output2。
您还可以使用-o out.txt选项将结果生成为一个制表符分隔的文件，而不在屏幕上显示。
You can also start it as follows:
./vdbench compare old output1 output2 new output3 output4This will calculate the averages of ‘old’ tests 1+2 and the average of ‘new’ tests 3+4 and will report the deltas.
Vdbench Compare now also has a search option where the Run information will be searched for search arguments, in the example using search values xfersize and 512k.
这将计算'old'测试1和2的平均值，以及'new'测试3和4的平均值，并报告它们之间的差异。
Vdbench Compare现在还具有search选项，其中将搜索运行信息以查找搜索参数，在本例中使用搜索值xfersize和512k。
