initial Dev page

[Imported from Trac: page Dev, version 1]

Dev.md

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+# Dev
+
+Everything you need to know to hack on Tahoe.
+
+ * The [/cgi-bin/mailman/listinfo/tahoe-dev tahoe-dev] mailing list is the community forum for discussion of Tahoe design, implementation, and usage.
+
+ * The [buildbot](http://allmydata.org/buildbot/) page shows current build and test results.
+
+ * The Timeline (linked at the top of each page) has extensive details about changes to the source code, the issue tickets, and the wiki (i.e. this web site).
+
+ * The [darcs patch browser](http://allmydata.org/darcs.cgi/tahoe/?c=browse) allows you to answer questions like "Which lines did this patch change?" and "Which patches changed this line?".
+
+ * The [/tahoe-figleaf/current code coverage statistics] show which lines of code get exercised by the unit tests.
+   * [/tahoe-figleaf Archived data] is also available.
+   * So is a [/tahoe-figleaf-graph/hanford.allmydata.com-tahoe_figleaf.html graph of code coverage over time].
+
+ * The [/cgi-bin/mailman/listinfo/zfec-dev zfec-dev] mailing list is specific to the [/source/zfec zfec] erasure-coding library.
+
+## Testnet Statistics
+
+Usage statistics are available for the public testnet.
+
+ * [/tahoe-munin/tahoecs1.allmydata.com-tahoe_dirnodes.html dirnodes]: count of directory nodes in the grid
+ * [/tahoe-munin/tahoebs1.allmydata.com-tahoe_files.html files]: count of files stored in the grid
+ * [/tahoe-munin/tahoebs1.allmydata.com-tahoe_sharesperfile.html shares per file]: average shares per file, this hints at the size of the overall grid. If the number of hosts in the grid is less than 100, then shares_per_file should equal 100/numhost
+ * [/tahoe-munin/tahoebs1.allmydata.com-tahoe_storagespace.html storage space]: total bytes consumed by all storage servers
+