Hi, I am trying to create a combined graph with data from two data sources and I am seeing some unexpected results. I have removed everything from my graph and produced a simple script which recreates the problem:
DEF:A='a.rrd':DS1:MAX DEF:B='b.rrd':DS1:MAX CDEF:AB=A,B,ADDNAN PRINT:A:MAX:'A\: %.3lf %S' PRINT:B:MAX:'B\: %.3lf %S' PRINT:AB:MAX:'Total\: %.3lf %S' If I graph this with "--start -1m" I get the following: A: 749.807 M B: 1744.822 M Total: 2325.624 M and with "--start -1y": A: 749.807 M B: 1744.822 M Total: 2430.266 M When I attempt to display data with "--start -1y" this is where the problem occurs. As you can see the MAX value for A and B hasn't changed, but my total has? When I convert these values into bps then the difference is 837mbps which isn't a small amount. Am I doing something wrong or is this expected? Thanks, Chris
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