From 42ad42f4499a049d9c1814b8cde823af7ec92a26 Mon Sep 17 00:00:00 2001
From: Christophe Bedard <fixed-term.christophe.bourquebedard@de.bosch.com>
Date: Tue, 13 Aug 2019 16:15:28 +0200
Subject: [PATCH] Avoid re-creating an entire dataframe when appending

---
 tracetools_analysis/tracetools_analysis/data_model/cpu_time.py | 2 +-
 tracetools_analysis/tracetools_analysis/data_model/profile.py  | 2 +-
 tracetools_analysis/tracetools_analysis/data_model/ros.py      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tracetools_analysis/tracetools_analysis/data_model/cpu_time.py b/tracetools_analysis/tracetools_analysis/data_model/cpu_time.py
index 07dece0..5c10e5f 100644
--- a/tracetools_analysis/tracetools_analysis/data_model/cpu_time.py
+++ b/tracetools_analysis/tracetools_analysis/data_model/cpu_time.py
@@ -49,7 +49,7 @@ class CpuTimeDataModel(DataModel):
             'duration': duration,
             'cpu_id': cpu_id,
         }
-        self.times = self.times.append(data, ignore_index=True)
+        self.times.loc[len(self.times.index)] = data
 
     def print_model(self) -> None:
         """Debug method to print every contained df."""
diff --git a/tracetools_analysis/tracetools_analysis/data_model/profile.py b/tracetools_analysis/tracetools_analysis/data_model/profile.py
index 6a8a027..1648cd6 100644
--- a/tracetools_analysis/tracetools_analysis/data_model/profile.py
+++ b/tracetools_analysis/tracetools_analysis/data_model/profile.py
@@ -59,7 +59,7 @@ class ProfileDataModel(DataModel):
             'duration': duration,
             'actual_duration': actual_duration,
         }
-        self.times = self.times.append(data, ignore_index=True)
+        self.times.loc[len(self.times.index)] = data
 
     def print_model(self) -> None:
         """Debug method to print every contained df."""
diff --git a/tracetools_analysis/tracetools_analysis/data_model/ros.py b/tracetools_analysis/tracetools_analysis/data_model/ros.py
index e1064db..ac4ae18 100644
--- a/tracetools_analysis/tracetools_analysis/data_model/ros.py
+++ b/tracetools_analysis/tracetools_analysis/data_model/ros.py
@@ -143,7 +143,7 @@ class RosDataModel(DataModel):
             'duration': duration,
             'intra_process': intra_process,
         }
-        self.callback_instances = self.callback_instances.append(data, ignore_index=True)
+        self.callback_instances.loc[len(self.callback_instances.index)] = data
 
     def print_model(self) -> None:
         """Debug method to print every contained df."""