[JIRA] (JENKINS-60748) clone options (--rev) not well suited for large repositories

[dirk.heinrichs@recommind.com (JIRA)]

Dirk Heinrichs created an issue

Jenkins / JENKINS-60748 clone options (--rev) not well suited for large repositories Issue Type: Improvement Assignee: Unassigned Components: mercurial-plugin Created: 2020-01-13 12:30 Environment: Windows/Linux Priority: Major Reporter: Dirk Heinrichs When cloning a large repository (~2G, general_delta format), using --rev to only clone a specific branch can lead to vastly increased clone times as shown in the table below: --rev default --uncompressed elapsed time 16:12,05 15:21,41 1:24,41 8:18,24 The times have been measured on a Linux host using the following command: time hg clone <options> <URL> As can be seen, adding -rev default increases the clone time dramatically, while adding -uncompressed yields the fastest result. On Windows, the situation is even worse (~3 - 4 times slower). It would therefor be nice if one could enable or disable clone options on a per-job basis, or even have something similar to Git plugin's "Additional Behaviours" which allows to specify "Advanced clone behaviours" (and many more). Add Comment

This message was sent by Atlassian Jira (v7.13.6#713006-sha1:cc4451f)

[dirk.heinrichs@recommind.com (JIRA)]

Dirk Heinrichs updated an issue

Jenkins / JENKINS-60748 clone options (--rev) not well suited for large repositories

Change By: Dirk Heinrichs

When cloning a large repository (~2G, general_delta format), using --rev to only clone a specific branch can lead to vastly increased clone times as shown in the table below: ||--rev default||--uncompressed||elapsed time||

|(/)|(/)|16:12,05| |(/)|(-)|15:21,41| |(-)|(/)|1:24,41| |(-)|(-)|8:18,24|

The times have been measured on a Linux host using the following command:

{code:java} time hg clone <options> <URL>{code} As can be seen, adding _ --rev default_ default increases the clone time dramatically, while adding _ -- uncompressed_ uncompressed yields the fastest result. On Windows, the situation is even worse (~3 - 4 times slower).

It would therefor be nice if one could enable or disable clone options on a per-job basis, or even have something similar to Git plugin's "Additional Behaviours" which allows to specify "Advanced clone behaviours" (and many more).

Add Comment