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Note in README which build/test steps can be meaningfully parallelized

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Signed-off-by: Ryan Lee <ryan.lee@canonical.com>
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Ryan Lee 2024-11-25 17:42:41 -08:00
parent 2b45586fa9
commit 967685352c
1 changed files with 17 additions and 8 deletions
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25
README.md
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@ -111,13 +111,21 @@ $ export PYTHON_VERSION=3
$ export PYTHON_VERSIONS=python3
```
Note that, in general, the build steps can be run in parallel, while the test
steps do not gain much speedup from being run in parallel. This is because the
test steps spawn a handful of long-lived test runner processes that mostly that
run their tests sequentially and do not use `make`'s jobserver. Moreover,
process spawning overhead constitutes a significant part of test runtime, so
reworking the test harnesses to add parallelism (which would be a major undertaking
for the harnesses that do not have it already) would not produce much of a speedup.
### libapparmor:
```
$ cd ./libraries/libapparmor
$ sh ./autogen.sh
$ sh ./configure --prefix=/usr --with-perl --with-python # see below
$ make
$ make -j $(nproc)
$ make check
$ make install
```
@ -130,7 +138,7 @@ generate Ruby bindings to libapparmor.]
```
$ cd binutils
$ make
$ make -j $(nproc)
$ make check
$ make install
```
@ -139,7 +147,8 @@ $ make install
```
$ cd parser
$ make # depends on libapparmor having been built first
$ make -j $(nproc) # depends on libapparmor having been built first
$ make -j $(nproc) tst_binaries # a build step of make check that can be parallelized
$ make check
$ make install
```
@ -149,7 +158,7 @@ $ make install
```
$ cd utils
$ make
$ make -j $(nproc)
$ make check PYFLAKES=/usr/bin/pyflakes3
$ make install
```
@ -158,7 +167,7 @@ $ make install
```
$ cd changehat/mod_apparmor
$ make # depends on libapparmor having been built first
$ make -j $(nproc) # depends on libapparmor having been built first
$ make install
```
@ -167,7 +176,7 @@ $ make install
```
$ cd changehat/pam_apparmor
$ make # depends on libapparmor having been built first
$ make -j $(nproc) # depends on libapparmor having been built first
$ make install
```
@ -207,7 +216,7 @@ To run:
### Regression tests - using apparmor userspace installed on host
```
$ cd tests/regression/apparmor (requires root)
$ make USE_SYSTEM=1
$ make -j $(nproc) USE_SYSTEM=1
$ sudo make tests USE_SYSTEM=1
$ sudo bash open.sh -r # runs and saves the last testcase from open.sh
```
@ -220,7 +229,7 @@ $ sudo bash open.sh -r # runs and saves the last testcase from open.sh
```
$ cd tests/regression/apparmor (requires root)
$ make
$ make -j $(nproc)
$ sudo make tests
$ sudo bash open.sh -r # runs and saves the last testcase from open.sh
```