Looking at  https://github.com/jenkinsci/artifact-manager-s3-plugin and the uploads appear to happen in series

for  10K, 5KB files upload time is around 20 mins, for a 100MB zip file it is a few second.

I’ve tried to fix it, but I’m not a Java developer or  have any Jenkins plugin development experience , and have no idea what I’m doing.

The original line,

https://github.com/jenkinsci/artifact-manager-s3-plugin/blob/master/src/main/java/io/jenkins/plugins/artifact_manager_jclouds/JCloudsArtifactManager.java#L189

 

  for (Map.Entry<String, URL> entry : artifactUrls.entrySet())

{                     client.uploadFile(new File(f, entry.getKey()), contentTypes.get(entry.getKey()), entry.getValue(), listener);                 }

 

My change,

 

  Map.Entry<String, URL> entry : artifactUrls.entrySet().parallelStream().forEach( 

                    client.uploadFile(new File(f, entry.getKey()), contentTypes.get(entry.getKey()), entry.getValue(), listener));