Call for Discussion: New Project: Skara -- investigating source code management options for the JDK sources

Aleksey Shipilev shade at
Mon Jul 30 09:55:35 UTC 2018

On 07/30/2018 11:47 AM, Weijun Wang wrote:
> Also, do you happen to know a solution to make the repo smaller after so many renames? Aleksey's
> page [2] shows the xz file for jdk8u is 232M but the one for jdk/jdk is 752M.
This seems to be the classic space-time tradeoff.

I have been experimenting with publishing the Mozilla-style bundles, and jdk/jdk hg bundle
compressed with "xz -9" is only 266M, which seems to be due to bundle being much more compact,
compared to .hg in the filesystem. The downside is that unpacking that bundle takes much more time
than un-xzing the full .hg snapshot.

So, if you have more bandwidth, .hg snapshot is quicker to bring up. If you have more time, bundles
seem to be the way to go. publishes .hg snapshots, because bandwidth is cheaper
than time so far.


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