plugins.svn is very slow

This is a known issue, but it seems like it’s gotten significantly worse in the past ~6 months, to the point where it’s disruptive to workflows, and would delay promptly recovering from bad deploys.

Here are some timings from my sandbox using, using themes.svn as a baseline.

/wp-content/themes ( 10 svn:externals to themes.svn )
$ time svnup

real 0m0.313s

wp-content/plugins ( 27 svn:externals to plugins.svn items, 1 to meta.svn )
$ time svnup

real 3m29.532s

$ time deployDeploy Launching code from a local development environment to the production web server, so that it's available to

real 4m44.074s

With a deploy taking almost 5 minutes, there’ll be a lot of extra/unnecessary downtime if we ever need to revert a bad commit and re-deploy.