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Tools to find the most frequently used C++ algorithms on Github.


You can look at the results of 3869 analyzed C++ repos in my
Google Spreadsheets
or use the results.csv directly.

algorithm sum avg
swap 108363 28
find 81006 21
count 60306 16
move 57595 15
copy 48050 12
sort 33317 9
max 28848 7
equal 27467 7
min 21720 6
unique 18484 5
lower_bound 15017 4
remove 13972 4
replace 13262 3
upper_bound 11835 3
for_each 11518 3


For best mode you should disable input and output buffering of Python.


Analyze top C++ repos on Github

Analyze the top C++ repos on Github and create a CSV file.

./ | ./ | ./ > results.csv

Analyze all C++ repos on Github

Analyze all C++ repos listed in GHTorrent.

cat cpp_repos.txt | ./ | ./ > results.csv

Distributed Analyzing with Redis Queue and workers

Use a Redis Queue to distribute jobs among workers and then fetch the results.
You need to provide the ALGOSTAT_RQ environment variable to the process with the
address of the redis server.

export ALGOSTAT_RQ_HOST="localhost"
export ALGOSTAT_RQ_PORT="6379"

Now you need to fill the job queue with results from top github repos
and repos listed in GHTorrent and sort out the duplicates.

./ >> jobs.txt
cat cpp_repos.txt >> jobs.txt
sort -u jobs.txt | ./

On your workers you need to tell to fetch the jobs from
a redis queue and then store it in a results queue.

./ --rq | ./

After that you aggregate the results in a single csv.

./ | ./ > results.csv


  1. Make sure you have Python 3 installed
  2. Clone the repository
  3. Install requirements with pip install -r requirements.txt

Using Docker for Deployment

You can use Docker to run the application in a distributed setup.


Run the redis server.

docker run --name redis -p 6379:6379 -d sameersbn/redis:latest

Get the IP address of your redis server. Assign it to the ALGOSTAT_RQ_HOST env variable for all following docker run commands. In this example we will work with

Get the image

I have already setup an automated build lukasmartinelli/algostat which you can use.

docker pull lukasmartinelli/algostat

Or you can clone the repo and build the docker image yourself.

docker build -t lukasmartinelli/algostat .

Fill job queue

docker run -it --rm --name queue-filler \
lukasmartinelli/algostat bash -c "cat cpp_repos.txt | ./"

Run the workers

Assign as many workers as you like.

docker run -it --rm --name worker1 \
lukasmartinelli/algostat bash -c "./ --rq | ./"

Aggregate results

Note that this step is not repeatable. Once you've aggregated the results the redis list will be empty.

docker run -it --rm --name result-aggregator \
lukasmartinelli/algostat bash -c "./ | ./"
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