kdmukai · January 9, 2025 15:10 · Jan 9, 2025
diff --git a/README.md b/README.md
@@ -0,0 +1,25 @@
+These test scripts demonstrate the step-by-step speed ups that the various `ccache`s provide.
+
+Scripted test sequence:
+* Start a build w/totally empty cache(s).
+* Rebuild the same target with the now populated cache(s).
+* Change to a new target and get some speedup via the populated cache(s).
+* Rebuild that target to get the full speedup.
+* ...repeat for the remaining two targets.
+
+The first script is for a SeedSigner OS builder that only has the built-in BuildRoot `ccache`.
+
+The second script is for a SeedSigner OS builder with the new additional "external" `ccache`.
+
+---
+
+To run these in the Docker container, you'll need to first add:
+```bash
+# Need the version of `time` that can write to a file
+apt install time
+```
+
+And when running the first script in a SeedSigner OS Docker image that only has the BuildRoot internal ccache, you'll need to explictly add `ccache` to get the cache clearing and stat reporting:
+```bash
+apt install ccache
+```
diff --git a/run_sequence_1.sh b/run_sequence_1.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Test on a SeedSigner OS version that only has the BuildRoot ccache.
+# Tests BR ccache's performance during a build sequence, starting from an empty cache.
+
+touch results.txt
+ccache -d /root/.buildroot-ccache -C
+for device in pi0 pi0 pi02w pi02w pi2 pi2 pi4 pi4
+do
+    ccache -d /root/.buildroot-ccache --zero-stats
+    echo "Building for: $device w/ongoing BR ccache" >> results.txt
+    /usr/bin/time -o results.txt -a ./build.sh --$device --app-repo=https://github.com/seedsigner/seedsigner.git --app-branch=0.8.5-rc1
+    echo "---------------------------------------------------" >> results.txt
+    ccache -d /root/.buildroot-ccache --show-stats >> results.txt
+    echo "---------------------------------------------------" >> results.txt
+    echo " " >> results.txt
+done
+
+cat results.txt
diff --git a/run_sequence_2.sh b/run_sequence_2.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Test on a SeedSigner OS version that has the BuildRoot ccache AND the new "external" ccache.
+# Tests the combined ccache performance during a build sequence, starting from empty caches.
+
+touch results.txt
+ccache -d /root/.buildroot-ccache -C
+ccache -C
+for device in pi0 pi0 pi02w pi02w pi2 pi2 pi4 pi4
+do
+    ccache -d /root/.buildroot-ccache --zero-stats
+    ccache --zero-stats
+    echo "Building for: $device w/ongoing BR & external ccaches" >> results.txt
+    /usr/bin/time -o results.txt -a ./build.sh --$device --app-repo=https://github.com/seedsigner/seedsigner.git --app-branch=0.8.5-rc1
+    echo "---------------------------------------------------" >> results.txt
+    ccache -d /root/.buildroot-ccache --show-stats >> results.txt
+    echo "---------------------------------------------------" >> results.txt
+    ccache --show-stats >> results.txt
+    echo "---------------------------------------------------" >> results.txt
+    echo " " >> results.txt
+done
+
+cat results.txt