[skip-ci] Add benchmarks for groupby math (#6390)

asv_bench/benchmarks/groupby.py

@@ -16,6 +16,8 @@ def setup(self, *args, **kwargs):
             }
         )
         self.ds2d = self.ds1d.expand_dims(z=10)
+        self.ds1d_mean = self.ds1d.groupby("b").mean()
+        self.ds2d_mean = self.ds2d.groupby("b").mean()
 
     @parameterized(["ndim"], [(1, 2)])
     def time_init(self, ndim):
@@ -31,6 +33,18 @@ def time_agg_large_num_groups(self, method, ndim):
         ds = getattr(self, f"ds{ndim}d")
         getattr(ds.groupby("b"), method)()
 
+    def time_groupby_binary_op_1d(self):
+        self.ds1d - self.ds1d_mean
+
+    def time_groupby_binary_op_2d(self):
+        self.ds2d - self.ds2d_mean
+
+    def peakmem_groupby_binary_op_1d(self):
+        self.ds1d - self.ds1d_mean
+
+    def peakmem_groupby_binary_op_2d(self):
+        self.ds2d - self.ds2d_mean
+
 
 class GroupByDask(GroupBy):
     def setup(self, *args, **kwargs):
@@ -40,6 +54,8 @@ def setup(self, *args, **kwargs):
         self.ds2d = self.ds2d.sel(dim_0=slice(None, None, 2)).chunk(
             {"dim_0": 50, "z": 5}
         )
+        self.ds1d_mean = self.ds1d.groupby("b").mean()
+        self.ds2d_mean = self.ds2d.groupby("b").mean()
 
 
 class GroupByPandasDataFrame(GroupBy):
@@ -51,6 +67,13 @@ def setup(self, *args, **kwargs):
 
         super().setup(**kwargs)
         self.ds1d = self.ds1d.to_dataframe()
+        self.ds1d_mean = self.ds1d.groupby("b").mean()
+
+    def time_groupby_binary_op_2d(self):
+        raise NotImplementedError
+
+    def peakmem_groupby_binary_op_2d(self):
+        raise NotImplementedError
 
 
 class GroupByDaskDataFrame(GroupBy):
@@ -63,6 +86,13 @@ def setup(self, *args, **kwargs):
         requires_dask()
         super().setup(**kwargs)
         self.ds1d = self.ds1d.chunk({"dim_0": 50}).to_dataframe()
+        self.ds1d_mean = self.ds1d.groupby("b").mean()
+
+    def time_groupby_binary_op_2d(self):
+        raise NotImplementedError
+
+    def peakmem_groupby_binary_op_2d(self):
+        raise NotImplementedError
 
 
 class Resample:
@@ -74,6 +104,8 @@ def setup(self, *args, **kwargs):
             coords={"time": pd.date_range("2001-01-01", freq="H", periods=365 * 24)},
         )
         self.ds2d = self.ds1d.expand_dims(z=10)
+        self.ds1d_mean = self.ds1d.resample(time="48H").mean()
+        self.ds2d_mean = self.ds2d.resample(time="48H").mean()
 
     @parameterized(["ndim"], [(1, 2)])
     def time_init(self, ndim):
@@ -89,6 +121,18 @@ def time_agg_large_num_groups(self, method, ndim):
         ds = getattr(self, f"ds{ndim}d")
         getattr(ds.resample(time="48H"), method)()
 
+    def time_groupby_binary_op_1d(self):
+        self.ds1d - self.ds1d_mean
+
+    def time_groupby_binary_op_2d(self):
+        self.ds2d - self.ds2d_mean
+
+    def peakmem_groupby_binary_op_1d(self):
+        self.ds1d - self.ds1d_mean
+
+    def peakmem_groupby_binary_op_2d(self):
+        self.ds2d - self.ds2d_mean
+
 
 class ResampleDask(Resample):
     def setup(self, *args, **kwargs):