QEMU development tree https://git.zx2c4.com/qemu/atom/scripts/coverage?h=master 2023-04-04T14:16:29Z 2023-04-04T14:16:29Z Alex Bennée alex.bennee@linaro.org 2023-04-03T13:49:10Z urn:sha1:899c3fc2dc66f6fd152322504eb321da4020ecd1 This is a very rough and ready first pass at comparing gcovr's json output between two different runs. At the moment it will give you a file level diff between two runs but hopefully it wont be too hard to extend to give better insight. After generating the coverage results you run with something like: ./scripts/coverage/compare_gcov_json.py \ -a ./builds/gcov.config1/coverage.json \ -b ./builds/gcov.config2/coverage.json My hope is we can use this to remove some redundancy from testing as well as evaluate if new tests are actually providing additional coverage or just burning our precious CI time. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Cc: Kautuk Consul <kconsul@linux.vnet.ibm.com> Acked-by: Thomas Huth <thuth@redhat.com> Message-Id: <20230403134920.2132362-2-alex.bennee@linaro.org>