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#
# If all files excluded and you will include only specific sub-directories
# the parent path must matched before.
#

/**
!/.gitignore

###############################
# Un-ignore the affected subdirectory

djd0723

Option 1: Command-line download extension as zip and extract

extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"

Thx to crxviewer for the magic download URL.

djd0723

Option 1: Command-line download extension as zip and extract

extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"

Thx to crxviewer for the magic download URL.

djd0723

Building chromium on OSX

See https://chromium.googlesource.com/chromium/src/+/master/docs/mac_build_instructions.md

git clone depot_tools

add to path (not using ~ but $HOME) in .bash_profile

Increase vnodes

sudo sysctl kern.maxvnodes=$((512*1024))

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// To use this simply install NodeJS (https://nodejs.org/)
// Then run node chromiumUpdater.js.
// You might want to put it in your crontab.

// Set to true for ASi builds
// Set to false for Intel builds
const APPLE_SILLICON = false
// Ignore No-Sync builds?
const SYNC_ONLY = true
// Show notifications

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# specify properties of the host system
# i.e. system you're compiling ON
set(CMAKE_HOST_SYSTEM Linux)
set(CMAKE_HOST_SYSTEM_PROCESSOR x86_64)

# specify properties of the target system
# i.e. system you're compiling FOR
set(CMAKE_SYSTEM_APPLE)
set(CMAKE_SYSTEM_VERSION 20.4)
set(CMAKE_SYSTEM_PROCESSOR x86_64)

djd0723

# specify properties of the host system
# i.e. system you're compiling ON
set(CMAKE_HOST_SYSTEM Linux)
set(CMAKE_HOST_SYSTEM_PROCESSOR x86_64)

# specify properties of the target system
# i.e. system you're compiling FOR
set(CMAKE_SYSTEM_APPLE)
set(CMAKE_SYSTEM_VERSION 20.4)
set(CMAKE_SYSTEM_PROCESSOR x86_64)

djd0723

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

1. Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.)

git clone --bare git@github.com:usi-systems/easytrace.git

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1. Record perfetto traces using the instruction. Make sure phone has some available memory on disk. Increase max trace size and length. Record only memory-related activities to reduce trace file size. You can stop recording and start a new one. Put all tracess from the session to one directory on your computer.
2. install Pyton3 brew install python3
3. pip3 install pandas perfetto
4. Run ./analyse.py pathToTraceFolder applicationId. Pass directory with traces and application id a parameter, for example if you have traces in directory testTraces and you want to build memory threndline for an application com.mapbox.navigation.examples, run ./analyse.py testTraces com.mapbox.navigation.examples

If analyse.py fails because random port allocation fails, try running it one more time.

Result of the trace is a chart with memory usage (blue) + trend line(red). It additionally output cooficient of the trenline linear function to comm