diff --git a/DegreeHigh/hot_code.info b/DegreeHigh/hot_code.info
new file mode 100644
index 0000000..7cd8df8
--- /dev/null
+++ b/DegreeHigh/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks hot code."
+include_revisions:
+  revision_range:
+    start: f6b2548c8039ee21d017b741a8e181a1e9b25cd6
+    end:   HEAD
+path: hot_code.patch
+project_name: DegreeHigh
+shortname: hot_code
+tags:
+- perf_region
diff --git a/DegreeHigh/hot_code.patch b/DegreeHigh/hot_code.patch
new file mode 100644
index 0000000..ce9f90e
--- /dev/null
+++ b/DegreeHigh/hot_code.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp b/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp
+index b008e0c..03bb33c 100644
+--- a/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp
++++ b/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp
+@@ -52,6 +52,8 @@ int main(int argc, char *argv[]) {
+     }
+   }
+ 
++  ___REGION_START __RT_High "hot_code"
+   fp_util::sleep_for_millisecs(1000 + t * 100);
++  ___REGION_END __RT_High "hot_code"
+   return 0;
+ }
diff --git a/DegreeHigh/regression.info b/DegreeHigh/regression.info
new file mode 100644
index 0000000..54f5dc1
--- /dev/null
+++ b/DegreeHigh/regression.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: f6b2548c8039ee21d017b741a8e181a1e9b25cd6
+    end:   HEAD
+path: regression.patch
+project_name: DegreeHigh
+shortname: regression
+tags:
+- regression
+- perf_prec
diff --git a/DegreeHigh/regression.patch b/DegreeHigh/regression.patch
new file mode 100644
index 0000000..20b69bf
--- /dev/null
+++ b/DegreeHigh/regression.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp b/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp
+index ba87834..8ae344c 100644
+--- a/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp
++++ b/projects/PerformanceInteractionDetection/DegreeHigh/main.cpp
+@@ -28,7 +28,7 @@ int main(int argc, char *argv[]) {
+   F9 = fp_util::isFeatureEnabled(argc, argv, "--f9");
+   F10 = fp_util::isFeatureEnabled(argc, argv, "--f10");
+ 
+-  int t = 10;
++  int t = 15;
+ 
+   if (F1) {
+     if (F2) {
diff --git a/DegreeLow/hot_code.info b/DegreeLow/hot_code.info
new file mode 100644
index 0000000..ef72232
--- /dev/null
+++ b/DegreeLow/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks hot code."
+include_revisions:
+  revision_range:
+    start: f6b2548c8039ee21d017b741a8e181a1e9b25cd6
+    end:   HEAD
+path: hot_code.patch
+project_name: DegreeLow
+shortname: hot_code
+tags:
+- perf_region
diff --git a/DegreeLow/hot_code.patch b/DegreeLow/hot_code.patch
new file mode 100644
index 0000000..3b42ab1
--- /dev/null
+++ b/DegreeLow/hot_code.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/DegreeLow/main.cpp b/projects/PerformanceInteractionDetection/DegreeLow/main.cpp
+index cd459aa..17ad58d 100644
+--- a/projects/PerformanceInteractionDetection/DegreeLow/main.cpp
++++ b/projects/PerformanceInteractionDetection/DegreeLow/main.cpp
+@@ -34,6 +34,8 @@ int main(int argc, char *argv[]) {
+     t *= 2;
+   }
+ 
++  ___REGION_START __RT_High "hot_code"
+   fp_util::sleep_for_millisecs(1000 + t * 100);
++  ___REGION_END __RT_High "hot_code"
+   return 0;
+ }
diff --git a/DegreeLow/regression.info b/DegreeLow/regression.info
new file mode 100644
index 0000000..bca2f08
--- /dev/null
+++ b/DegreeLow/regression.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: f6b2548c8039ee21d017b741a8e181a1e9b25cd6
+    end:   HEAD
+path: regression.patch
+project_name: DegreeLow
+shortname: regression
+tags:
+- regression
+- perf_prec
diff --git a/DegreeLow/regression.patch b/DegreeLow/regression.patch
new file mode 100644
index 0000000..0f9ed29
--- /dev/null
+++ b/DegreeLow/regression.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/DegreeLow/main.cpp b/projects/PerformanceInteractionDetection/DegreeLow/main.cpp
+index abde64c..d7063bd 100644
+--- a/projects/PerformanceInteractionDetection/DegreeLow/main.cpp
++++ b/projects/PerformanceInteractionDetection/DegreeLow/main.cpp
+@@ -28,7 +28,7 @@ int main(int argc, char *argv[]) {
+   F9 = fp_util::isFeatureEnabled(argc, argv, "--f9");
+   F10 = fp_util::isFeatureEnabled(argc, argv, "--f10");
+ 
+-  int t = 10;
++  int t = 15;
+ 
+   if (F1) {
+     t *= 2;
diff --git a/FunctionAccumulating/hot_code.info b/FunctionAccumulating/hot_code.info
new file mode 100644
index 0000000..f9e423d
--- /dev/null
+++ b/FunctionAccumulating/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the function hot_function() as hot code."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: hot_code.patch
+project_name: FunctionAccumulating
+shortname: hot_code
+tags:
+- perf_region
diff --git a/FunctionAccumulating/hot_code.patch b/FunctionAccumulating/hot_code.patch
new file mode 100644
index 0000000..846fcd8
--- /dev/null
+++ b/FunctionAccumulating/hot_code.patch
@@ -0,0 +1,28 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+index 7f90a9a..ade0457 100644
+--- a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+@@ -9,17 +9,23 @@ bool __attribute__((feature_variable("F2"))) F2;
+ bool __attribute__((feature_variable("F3"))) F3;
+ 
+ 
++___REGION_START __RT_High "hot_code"
+ void function1(int r) {
+   fp_util::sleep_for_millisecs(3000 + r * 100);
+ }
++___REGION_END __RT_High "hot_code"
+ 
++___REGION_START __RT_High "hot_code"
+ void function2(int s) {
+   fp_util::sleep_for_millisecs(3000 + s * 100);
+ }
++___REGION_END __RT_High "hot_code"
+ 
++___REGION_START __RT_High "hot_code"
+ void function3(int t) {
+   fp_util::sleep_for_millisecs(3000 + t * 100);
+ }
++___REGION_END __RT_High "hot_code"
+ 
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
diff --git a/FunctionAccumulating/regression1.info b/FunctionAccumulating/regression1.info
new file mode 100644
index 0000000..4b4c49e
--- /dev/null
+++ b/FunctionAccumulating/regression1.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression1.patch
+project_name: FunctionAccumulating
+shortname: regression1
+tags:
+- regression
+- perf_prec
diff --git a/FunctionAccumulating/regression1.patch b/FunctionAccumulating/regression1.patch
new file mode 100644
index 0000000..dc47a2f
--- /dev/null
+++ b/FunctionAccumulating/regression1.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+index 9a0e036..91fb7e5 100644
+--- a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+@@ -26,7 +26,7 @@ int main(int argc, char *argv[]) {
+   F2 = fp_util::isFeatureEnabled(argc, argv, "--f2");
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+-  int r = 10;
++  int r = 15;
+   int s = 10;
+   int t = 10;
+ 
diff --git a/FunctionAccumulating/regression2.info b/FunctionAccumulating/regression2.info
new file mode 100644
index 0000000..eca09cf
--- /dev/null
+++ b/FunctionAccumulating/regression2.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression2.patch
+project_name: FunctionAccumulating
+shortname: regression2
+tags:
+- regression
+- perf_prec
diff --git a/FunctionAccumulating/regression2.patch b/FunctionAccumulating/regression2.patch
new file mode 100644
index 0000000..395408a
--- /dev/null
+++ b/FunctionAccumulating/regression2.patch
@@ -0,0 +1,15 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+index 9a0e036..c2d8dd7 100644
+--- a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+@@ -26,8 +26,8 @@ int main(int argc, char *argv[]) {
+   F2 = fp_util::isFeatureEnabled(argc, argv, "--f2");
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+-  int r = 10;
+-  int s = 10;
++  int r = 15;
++  int s = 15;
+   int t = 10;
+ 
+   if (F1) {
diff --git a/FunctionAccumulating/regression3.info b/FunctionAccumulating/regression3.info
new file mode 100644
index 0000000..893db41
--- /dev/null
+++ b/FunctionAccumulating/regression3.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression3.patch
+project_name: FunctionAccumulating
+shortname: regression3
+tags:
+- regression
+- perf_prec
diff --git a/FunctionAccumulating/regression3.patch b/FunctionAccumulating/regression3.patch
new file mode 100644
index 0000000..754eecb
--- /dev/null
+++ b/FunctionAccumulating/regression3.patch
@@ -0,0 +1,17 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+index 9a0e036..b606850 100644
+--- a/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionAccumulating/main.cpp
+@@ -26,9 +26,9 @@ int main(int argc, char *argv[]) {
+   F2 = fp_util::isFeatureEnabled(argc, argv, "--f2");
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+-  int r = 10;
+-  int s = 10;
+-  int t = 10;
++  int r = 15;
++  int s = 15;
++  int t = 15;
+ 
+   if (F1) {
+     function1(r);
diff --git a/FunctionMultiple/hot_code.info b/FunctionMultiple/hot_code.info
new file mode 100644
index 0000000..2f9e2fe
--- /dev/null
+++ b/FunctionMultiple/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the function hot_function() as hot code."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: hot_code.patch
+project_name: FunctionMultiple
+shortname: hot_code
+tags:
+- perf_region
diff --git a/FunctionMultiple/hot_code.patch b/FunctionMultiple/hot_code.patch
new file mode 100644
index 0000000..17874a4
--- /dev/null
+++ b/FunctionMultiple/hot_code.patch
@@ -0,0 +1,20 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+index 3eaddca..b6941b3 100644
+--- a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+@@ -16,6 +16,7 @@ bool function1(int s) {
+   return false;
+ }
+ 
++___REGION_START __RT_High "hot_code"
+ void function2(bool b, int t) {
+   if (b) {
+     fp_util::sleep_for_millisecs(t * 100);
+@@ -23,6 +24,7 @@ void function2(bool b, int t) {
+     fp_util::sleep_for_millisecs(1000);
+   }
+ }
++___REGION_END __RT_High "hot_code"
+ 
+ void function3() {
+   fp_util::sleep_for_millisecs(1000);
diff --git a/FunctionMultiple/regression1.info b/FunctionMultiple/regression1.info
new file mode 100644
index 0000000..80d7cd7
--- /dev/null
+++ b/FunctionMultiple/regression1.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression1.patch
+project_name: FunctionMultiple
+shortname: regression1
+tags:
+- regression
+- perf_prec
diff --git a/FunctionMultiple/regression1.patch b/FunctionMultiple/regression1.patch
new file mode 100644
index 0000000..8dc754f
--- /dev/null
+++ b/FunctionMultiple/regression1.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+index 70137b9..eda7b1e 100644
+--- a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+@@ -32,7 +32,7 @@ int main(int argc, char *argv[]) {
+   F2 = fp_util::isFeatureEnabled(argc, argv, "--f2");
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+-  int s = 10;
++  int s = 15;
+   int t = 10;
+   bool b = false;
+ 
diff --git a/FunctionMultiple/regression2.info b/FunctionMultiple/regression2.info
new file mode 100644
index 0000000..f12906c
--- /dev/null
+++ b/FunctionMultiple/regression2.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression2.patch
+project_name: FunctionMultiple
+shortname: regression2
+tags:
+- regression
+- perf_prec
diff --git a/FunctionMultiple/regression2.patch b/FunctionMultiple/regression2.patch
new file mode 100644
index 0000000..f5c58da
--- /dev/null
+++ b/FunctionMultiple/regression2.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+index 70137b9..319a985 100644
+--- a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+@@ -33,7 +33,7 @@ int main(int argc, char *argv[]) {
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+   int s = 10;
+-  int t = 10;
++  int t = 15;
+   bool b = false;
+ 
+   if (F1) {
diff --git a/FunctionMultiple/regression3.info b/FunctionMultiple/regression3.info
new file mode 100644
index 0000000..439fe75
--- /dev/null
+++ b/FunctionMultiple/regression3.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression3.patch
+project_name: FunctionMultiple
+shortname: regression3
+tags:
+- regression
+- perf_prec
diff --git a/FunctionMultiple/regression3.patch b/FunctionMultiple/regression3.patch
new file mode 100644
index 0000000..378a2eb
--- /dev/null
+++ b/FunctionMultiple/regression3.patch
@@ -0,0 +1,15 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+index 70137b9..a2d4881 100644
+--- a/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionMultiple/main.cpp
+@@ -32,8 +32,8 @@ int main(int argc, char *argv[]) {
+   F2 = fp_util::isFeatureEnabled(argc, argv, "--f2");
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+-  int s = 10;
+-  int t = 10;
++  int s = 15;
++  int t = 15;
+   bool b = false;
+ 
+   if (F1) {
diff --git a/FunctionSingle/hot_code.info b/FunctionSingle/hot_code.info
new file mode 100644
index 0000000..94dcf69
--- /dev/null
+++ b/FunctionSingle/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the function hot_function() as hot code."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: hot_code.patch
+project_name: FunctionSingle
+shortname: hot_code
+tags:
+- perf_region
diff --git a/FunctionSingle/hot_code.patch b/FunctionSingle/hot_code.patch
new file mode 100644
index 0000000..e6785f6
--- /dev/null
+++ b/FunctionSingle/hot_code.patch
@@ -0,0 +1,16 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp b/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp
+index 4e491d0..13c89b8 100644
+--- a/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp
+@@ -9,9 +9,11 @@ bool __attribute__((feature_variable("F2"))) F2;
+ bool __attribute__((feature_variable("F3"))) F3;
+ 
+ 
++___REGION_END __RT_High "hot_code"
+ void function1(int t) {
+   fp_util::sleep_for_millisecs(1000 + t * 100);
+ }
++___REGION_START __RT_High "hot_code"
+ 
+ void function2() {
+   fp_util::sleep_for_millisecs(1000);
diff --git a/FunctionSingle/regression.info b/FunctionSingle/regression.info
new file mode 100644
index 0000000..282b89c
--- /dev/null
+++ b/FunctionSingle/regression.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: 2036239cdbc2210f19e2bcabe75f23d217c0a9d4
+    end:   HEAD
+path: regression.patch
+project_name: FunctionSingle
+shortname: regression
+tags:
+- regression
+- perf_prec
diff --git a/FunctionSingle/regression.patch b/FunctionSingle/regression.patch
new file mode 100644
index 0000000..abb6918
--- /dev/null
+++ b/FunctionSingle/regression.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp b/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp
+index 6414bfb..bd8fb0d 100644
+--- a/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp
++++ b/projects/PerformanceInteractionDetection/FunctionSingle/main.cpp
+@@ -26,7 +26,7 @@ int main(int argc, char *argv[]) {
+   F2 = fp_util::isFeatureEnabled(argc, argv, "--f2");
+   F3 = fp_util::isFeatureEnabled(argc, argv, "--f3");
+ 
+-  int t = 10;
++  int t = 15;
+ 
+   if (F1) {
+     function1(t);
diff --git a/InterDataFlow/hot_code.info b/InterDataFlow/hot_code.info
new file mode 100644
index 0000000..2b8c2a0
--- /dev/null
+++ b/InterDataFlow/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the function hot_function() as hot code."
+include_revisions:
+  revision_range:
+    start: e3c3ab43f27bec96f015b4bce591156bbe557a0a
+    end:   HEAD
+path: hot_code.patch
+project_name: InterDataFlow
+shortname: hot_code
+tags:
+- perf_region
diff --git a/InterDataFlow/hot_code.patch b/InterDataFlow/hot_code.patch
new file mode 100644
index 0000000..0e834ad
--- /dev/null
+++ b/InterDataFlow/hot_code.patch
@@ -0,0 +1,17 @@
+diff --git a/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp b/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp
+index a9f8958..7efd1e2 100644
+--- a/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp
++++ b/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp
+@@ -8,10 +8,12 @@
+ bool __attribute__((feature_variable("F1"))) F1;
+ 
+ 
++___REGION_START __RT_High "hot_code"
+ int hotFunction(int t) {
+   fp_util::sleep_for_millisecs(5000 + t * 100);
+   return 0;
+ }
++___REGION_END __RT_High "hot_code"
+ 
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
diff --git a/InterDataFlow/regression.info b/InterDataFlow/regression.info
new file mode 100644
index 0000000..37adf8c
--- /dev/null
+++ b/InterDataFlow/regression.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: e3c3ab43f27bec96f015b4bce591156bbe557a0a
+    end:   HEAD
+path: regression.patch
+project_name: InterDataFlow
+shortname: regression
+tags:
+- regression
+- perf_prec
diff --git a/InterDataFlow/regression.patch b/InterDataFlow/regression.patch
new file mode 100644
index 0000000..0c559a9
--- /dev/null
+++ b/InterDataFlow/regression.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp b/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp
+index 415bdc0..55a3ca6 100644
+--- a/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp
++++ b/projects/PerformanceInteractionDetection/InterDataFlow/main.cpp
+@@ -16,7 +16,7 @@ int hotFunction(int t) {
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
+ 
+-  int t = 10;
++  int t = 15;
+ 
+   if (F1) {
+     t *= 2;
diff --git a/InterImplicitFlow/hot_code.info b/InterImplicitFlow/hot_code.info
new file mode 100644
index 0000000..7b3d7d2
--- /dev/null
+++ b/InterImplicitFlow/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the function hot_function() as hot code."
+include_revisions:
+  revision_range:
+    start: e3c3ab43f27bec96f015b4bce591156bbe557a0a
+    end:   HEAD
+path: hot_code.patch
+project_name: InterImplicitFlow
+shortname: hot_code
+tags:
+- perf_region
diff --git a/InterImplicitFlow/hot_code.patch b/InterImplicitFlow/hot_code.patch
new file mode 100644
index 0000000..7bc2438
--- /dev/null
+++ b/InterImplicitFlow/hot_code.patch
@@ -0,0 +1,17 @@
+diff --git a/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp b/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp
+index f2bfadd..7f85faa 100644
+--- a/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp
++++ b/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp
+@@ -8,10 +8,12 @@
+ bool __attribute__((feature_variable("F1"))) F1;
+ 
+ 
++___REGION_START __RT_High "hot_code"
+ int hotFunction(int t) {
+   fp_util::sleep_for_millisecs(5000 + t * 100);
+   return 0;
+ }
++___REGION_END __RT_High "hot_code"
+ 
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
diff --git a/InterImplicitFlow/regression.info b/InterImplicitFlow/regression.info
new file mode 100644
index 0000000..3d83755
--- /dev/null
+++ b/InterImplicitFlow/regression.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: e3c3ab43f27bec96f015b4bce591156bbe557a0a
+    end:   HEAD
+path: regression.patch
+project_name: InterImplicitFlow
+shortname: regression
+tags:
+- regression
+- perf_prec
diff --git a/InterImplicitFlow/regression.patch b/InterImplicitFlow/regression.patch
new file mode 100644
index 0000000..453891f
--- /dev/null
+++ b/InterImplicitFlow/regression.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp b/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp
+index c24462b..0b2b076 100644
+--- a/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp
++++ b/projects/PerformanceInteractionDetection/InterImplicitFlow/main.cpp
+@@ -16,7 +16,7 @@ int hotFunction(int t) {
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
+ 
+-  int t = 10;
++  int t = 15;
+   bool flag = false;
+ 
+   if (F1) {
diff --git a/InterStructural/hot_code.info b/InterStructural/hot_code.info
new file mode 100644
index 0000000..af7b7b6
--- /dev/null
+++ b/InterStructural/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the function hot_function() as hot code."
+include_revisions:
+  revision_range:
+    start: e3c3ab43f27bec96f015b4bce591156bbe557a0a
+    end:   HEAD
+path: hot_code.patch
+project_name: InterStructural
+shortname: hot_code
+tags:
+- perf_region
diff --git a/InterStructural/hot_code.patch b/InterStructural/hot_code.patch
new file mode 100644
index 0000000..1347a24
--- /dev/null
+++ b/InterStructural/hot_code.patch
@@ -0,0 +1,20 @@
+diff --git a/projects/PerformanceInteractionDetection/InterStructural/main.cpp b/projects/PerformanceInteractionDetection/InterStructural/main.cpp
+index 962b38e..ef11c5a 100644
+--- a/projects/PerformanceInteractionDetection/InterStructural/main.cpp
++++ b/projects/PerformanceInteractionDetection/InterStructural/main.cpp
+@@ -8,6 +8,7 @@
+ bool __attribute__((feature_variable("F1"))) F1;
+ 
+ 
++___REGION_START __RT_High "hot_code"
+ int hotFunction(int t) {
+   if (F1) {
+     t *= 2;
+@@ -16,6 +17,7 @@ int hotFunction(int t) {
+   fp_util::sleep_for_millisecs(5000 + t * 100);
+   return 0;
+ }
++___REGION_END __RT_High "hot_code"
+ 
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
diff --git a/InterStructural/regression.info b/InterStructural/regression.info
new file mode 100644
index 0000000..fcce3eb
--- /dev/null
+++ b/InterStructural/regression.info
@@ -0,0 +1,11 @@
+description: "Insert regression."
+include_revisions:
+  revision_range:
+    start: e3c3ab43f27bec96f015b4bce591156bbe557a0a
+    end:   HEAD
+path: regression.patch
+project_name: InterStructural
+shortname: regression
+tags:
+- regression
+- perf_prec
diff --git a/InterStructural/regression.patch b/InterStructural/regression.patch
new file mode 100644
index 0000000..def1f00
--- /dev/null
+++ b/InterStructural/regression.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/PerformanceInteractionDetection/InterStructural/main.cpp b/projects/PerformanceInteractionDetection/InterStructural/main.cpp
+index 9370f07..7d7ef3b 100644
+--- a/projects/PerformanceInteractionDetection/InterStructural/main.cpp
++++ b/projects/PerformanceInteractionDetection/InterStructural/main.cpp
+@@ -20,7 +20,7 @@ int hotFunction(int t) {
+ int main(int argc, char *argv[]) {
+   F1 = fp_util::isFeatureEnabled(argc, argv, "--f1");
+ 
+-  int t = 10;
++  int t = 15;
+ 
+   hotFunction(t);
+ 
diff --git a/SynthFeatureLargeConfigSpace/hot_code.info b/SynthFeatureLargeConfigSpace/hot_code.info
new file mode 100644
index 0000000..36971cc
--- /dev/null
+++ b/SynthFeatureLargeConfigSpace/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the sleep at the end as hot code."
+include_revisions:
+  revision_range:
+    start: 6863c78c242a8e67b09d2947bd83ef09ceff4be4
+    end:   master
+path: hot_code.patch
+project_name: FeaturePerfCSCollection
+shortname: hot_code
+tags:
+- perf_region
diff --git a/SynthFeatureLargeConfigSpace/hot_code.patch b/SynthFeatureLargeConfigSpace/hot_code.patch
new file mode 100644
index 0000000..98438f0
--- /dev/null
+++ b/SynthFeatureLargeConfigSpace/hot_code.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/SynthFeatureLargeConfigSpace/main.cpp b/projects/SynthFeatureLargeConfigSpace/main.cpp
+index 2a2187d..daf681b 100644
+--- a/projects/SynthFeatureLargeConfigSpace/main.cpp
++++ b/projects/SynthFeatureLargeConfigSpace/main.cpp
+@@ -76,6 +76,8 @@ int main(int argc, char *argv[]) {
+     fp_util::sleep_for_millisecs(20);
+   }
+ 
++  ___REGION_START __RT_High "performance-relevant code"
+   fp_util::sleep_for_millisecs(sleepTime);
++  ___REGION_END __RT_High "performance-relevant code"
+   return 0;
+ }
diff --git a/SynthFeatureRestrictedConfigSpace/hot_code.info b/SynthFeatureRestrictedConfigSpace/hot_code.info
new file mode 100644
index 0000000..36971cc
--- /dev/null
+++ b/SynthFeatureRestrictedConfigSpace/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the sleep at the end as hot code."
+include_revisions:
+  revision_range:
+    start: 6863c78c242a8e67b09d2947bd83ef09ceff4be4
+    end:   master
+path: hot_code.patch
+project_name: FeaturePerfCSCollection
+shortname: hot_code
+tags:
+- perf_region
diff --git a/SynthFeatureRestrictedConfigSpace/hot_code.patch b/SynthFeatureRestrictedConfigSpace/hot_code.patch
new file mode 100644
index 0000000..6eb5600
--- /dev/null
+++ b/SynthFeatureRestrictedConfigSpace/hot_code.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/SynthFeatureRestrictedConfigSpace/main.cpp b/projects/SynthFeatureRestrictedConfigSpace/main.cpp
+index da46a5e..2b6523a 100644
+--- a/projects/SynthFeatureRestrictedConfigSpace/main.cpp
++++ b/projects/SynthFeatureRestrictedConfigSpace/main.cpp
+@@ -76,6 +76,8 @@ int main(int argc, char *argv[]) {
+     fp_util::sleep_for_millisecs(20);
+   }
+ 
++  ___REGION_START __RT_High "performance-relevant code"
+   fp_util::sleep_for_millisecs(sleepTime);
++  ___REGION_END __RT_High "performance-relevant code"
+   return 0;
+ }
diff --git a/SynthFeatureRestrictedConfigSpace/regression_1.info b/SynthFeatureRestrictedConfigSpace/regression_1.info
new file mode 100644
index 0000000..b9bd6ab
--- /dev/null
+++ b/SynthFeatureRestrictedConfigSpace/regression_1.info
@@ -0,0 +1,11 @@
+description: "Inserts regression into the sleep time computation"
+include_revisions:
+  revision_range:
+    start: 6863c78c242a8e67b09d2947bd83ef09ceff4be4
+    end:   master
+path: regression_1.patch
+project_name: FeaturePerfCSCollection
+shortname: reg_long_sleep
+tags:
+- regression
+- perf_prec
diff --git a/SynthFeatureRestrictedConfigSpace/regression_1.patch b/SynthFeatureRestrictedConfigSpace/regression_1.patch
new file mode 100644
index 0000000..bb4527a
--- /dev/null
+++ b/SynthFeatureRestrictedConfigSpace/regression_1.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/SynthFeatureRestrictedConfigSpace/main.cpp b/projects/SynthFeatureRestrictedConfigSpace/main.cpp
+index fbf505d..766484f 100644
+--- a/projects/SynthFeatureRestrictedConfigSpace/main.cpp
++++ b/projects/SynthFeatureRestrictedConfigSpace/main.cpp
+@@ -51,7 +51,7 @@ int main(int argc, char *argv[]) {
+ 
+   if (F5) {
+     if (F7 && !F3) {
+-      sleepTime *= 3;
++      sleepTime *= 4;
+     }
+     fp_util::sleep_for_millisecs(70);
+   }
diff --git a/SynthIPRuntime/hot_code.info b/SynthIPRuntime/hot_code.info
new file mode 100644
index 0000000..c92acff
--- /dev/null
+++ b/SynthIPRuntime/hot_code.info
@@ -0,0 +1,10 @@
+description: "Marks the loop in function substr_run() as hot code."
+include_revisions:
+  revision_range:
+    start: 793035062810ea3a2d9a10f831cd199fbbb82090
+    end:   master
+path: hot_code.patch
+project_name: FeaturePerfCSCollection
+shortname: hot_code
+tags:
+- perf_region
diff --git a/SynthIPRuntime/hot_code.patch b/SynthIPRuntime/hot_code.patch
new file mode 100644
index 0000000..3533800
--- /dev/null
+++ b/SynthIPRuntime/hot_code.patch
@@ -0,0 +1,20 @@
+diff --git a/projects/SynthIPRuntime/main.cpp b/projects/SynthIPRuntime/main.cpp
+index ede9ff9..ea0b804 100644
+--- a/projects/SynthIPRuntime/main.cpp
++++ b/projects/SynthIPRuntime/main.cpp
+@@ -48,6 +48,7 @@ inline size_t substr_run(const unsigned char *ai, const unsigned char *ae,
+ 
+   size_t n = 0;
+ 
++  ___REGION_START __RT_High "substr_run_loop"
+   while (1) {
+ 
+     if (*ai != *bi)
+@@ -60,6 +61,7 @@ inline size_t substr_run(const unsigned char *ai, const unsigned char *ae,
+     if (ai == ae || bi == be)
+       break;
+   }
++  ___REGION_END __RT_High "substr_run_loop"
+ 
+   return n;
+ }
diff --git a/SynthIPRuntime/slower_fastmode.info b/SynthIPRuntime/slower_fastmode.info
new file mode 100644
index 0000000..3ec6381
--- /dev/null
+++ b/SynthIPRuntime/slower_fastmode.info
@@ -0,0 +1,11 @@
+description: "Increase searchlength to slow down fastmode."
+include_revisions:
+  revision_range:
+    start: 38234c9d69e6f45d612321e7cb16caeff2d6230a
+    end:   HEAD
+path: slower_fastmode.patch
+project_name: FeaturePerfCSCollection
+shortname: slower_fastmode
+tags:
+- regression
+- df_regression
diff --git a/SynthIPRuntime/slower_fastmode.patch b/SynthIPRuntime/slower_fastmode.patch
new file mode 100644
index 0000000..2f644e4
--- /dev/null
+++ b/SynthIPRuntime/slower_fastmode.patch
@@ -0,0 +1,13 @@
+diff --git a/projects/SynthIPRuntime/main.cpp b/projects/SynthIPRuntime/main.cpp
+index edc76b0..7f385da 100644
+--- a/projects/SynthIPRuntime/main.cpp
++++ b/projects/SynthIPRuntime/main.cpp
+@@ -577,7 +577,7 @@ int getBufsize(bool smallmode, bool decompress) {
+ 
+ int getSearchlen(bool fastmode) {
+   if (fastmode) {
+-    return 1;
++    return 4;
+   }
+   return DEFAULT_SEARCHLEN;
+ }