narkq / flame-graph-builder

Flame graph builder

Just a wrapper for Brendan Gregg's scripts for building CPU flame graphs.

Howto

1. Build an image

    docker build . --tag flame-graph-builder
   

2. Run the container

    docker run --rm -d -p $external_ip:80:80 flame-graph-builder
   

3. Upload you perf script

    [root@server ~]# perf script | curl -# -i -X POST http://IP_FROM_PREVIOUS_STEP/ -F perfScript=@- | tee /dev/null
    ######################################################################## 100.0%
    HTTP/1.1 100 Continue
   
    HTTP/1.1 201 Created
    Date: Thu, 01 Mar 2018 23:52:41 GMT
    Server: Apache/2.4.25 (Debian)
    X-Powered-By: PHP/7.2.2
    Vary: Accept,Accept-Encoding
    Content-Length: 457
    Content-Type: text/plain;charset=UTF-8
   
    flameGraph: http://IP_FROM_PREVIOUS_STEP/reports/613f7450e5b870e38da466681f13afa70262cd15/flame-graph.svg
    icicleGraph: http://IP_FROM_PREVIOUS_STEP/reports/613f7450e5b870e38da466681f13afa70262cd15/icicle-graph.svg
    perfScript: http://IP_FROM_PREVIOUS_STEP/reports/613f7450e5b870e38da466681f13afa70262cd15/perf-script.txt
    perfFolded: http://IP_FROM_PREVIOUS_STEP/reports/613f7450e5b870e38da466681f13afa70262cd15/perf-folded.txt
    reportId: 613f7450e5b870e38da466681f13afa70262cd15
   

4. ???

5. Profit!

Dev-mode

1. Create a directory for saving your reports

    mkdir src/reports
    chmod o+rwx src/reports
   

2. Add -v $(pwd)/src:/var/www/html:rw option when starting the container