Using the Measure Loop group is specifically intended to improve compile time and reduce memory consumption by up to 70%. What it does is for measurements where we set of some conditions and then sweep some states and expect a sweep vector as a result, the sweep part is generated behind the scenes and the compiler only handles the set conditions. This both reduces the compile time and memory usage. This is helpful for when there are device instructions (SPI Write) that are emitted prior to a Measure Sequence group, while also sweeping frequency and/or power or iterating over a large number of switched paths. Expected run time is the same since the total number of actual measurements the instruments make are still the same, it simply bundles the measurements that the compiler sees. Does not affect measurement results.

For example, a test section before using the Measure Loop group was generating more than 600 tests and took 16 seconds to compile was reduced to 80 tests and 5 seconds to compile, that is 70% improvement when the Measure Loop group was added.

Requirements: Cassini Patch 358 - Measure Sweep (first available Feb 2026)

Each Measure Loop must specify the sort order by choosing the Index Setting state menu and then optionally assigning a variable name with the Index Var menu. Right Click in the

How to Use Measure Loop:
1. Select multiple states or sweeps, lock steps, or any other combination of states and choose Group Selected from the right mouse button menu. (See Figure 1)
2. Choose meas loop and a new Measure Loop group will appear around the selected states. (See Figure 2)
3. (Optional) Right click in the white space just inside the newly created group and select Index Setting to define a single index value (sort order). Choose any state defined in the group that can be used to pull out a specific value later or will be appended to the Data Save name to make it unique. (See Figure 2)
4. (Optional) Right click in the white space just inside the newly created group and select Index Var to define a variable to store the array of states in the group. This is only useful for calculations that would require that information and would conserve memory when excluded.


Figure 1: Group Selected



Figure 2: meas loop


Figure 3: Index Setting and Index Var


Figure 4: Measure Loop Indexed by System Index


Example Testplan: Measure Loop Group
Measure_Loop_Group.RiTestplan.gzp