On Sat, 2 Nov 2024 at 20:10, Tamir Duberstein tamird@gmail.com wrote:
Use KVM or HVF if supported by the QEMU binary and available on the system.
This produces a nice improvement on my Apple M3 Pro running macOS 14.7:
Before: ./tools/testing/kunit/kunit.py exec --arch arm64 [HH:MM:SS] Elapsed time: 10.145s
After: ./tools/testing/kunit/kunit.py exec --arch arm64 [HH:MM:SS] Elapsed time: 1.773s
Signed-off-by: Tamir Duberstein tamird@gmail.com
Thanks a lot.
I finally managed to dig up an arm64 machine and test this, and I can reproduce the performance improvement.
Reviewed-by: David Gow davidgow@google.com
Cheers, -- David
tools/testing/kunit/kunit_kernel.py | 3 +++ tools/testing/kunit/qemu_configs/arm64.py | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py index 61931c4926fd6645f2c62dd13f9842a432ec4167..3146acb884ecf0bcff94d5938535aabd4486fe82 100644 --- a/tools/testing/kunit/kunit_kernel.py +++ b/tools/testing/kunit/kunit_kernel.py @@ -123,6 +123,9 @@ class LinuxSourceTreeOperationsQemu(LinuxSourceTreeOperations): '-append', ' '.join(params + [self._kernel_command_line]), '-no-reboot', '-nographic',
'-accel', 'kvm','-accel', 'hvf','-accel', 'tcg', '-serial', self._serial] + self._extra_qemu_params # Note: shlex.join() does what we want, but requires python 3.8+. print('Running tests with:\n$', ' '.join(shlex.quote(arg) for arg in qemu_command))diff --git a/tools/testing/kunit/qemu_configs/arm64.py b/tools/testing/kunit/qemu_configs/arm64.py index d3ff27024755411441f910799be30399295c9541..5c44d3a87e6dd2cd6b086138186a277a1473585b 100644 --- a/tools/testing/kunit/qemu_configs/arm64.py +++ b/tools/testing/kunit/qemu_configs/arm64.py @@ -9,4 +9,4 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y''', qemu_arch='aarch64', kernel_path='arch/arm64/boot/Image.gz', kernel_command_line='console=ttyAMA0',
extra_qemu_params=['-machine', 'virt', '-cpu', 'max,pauth-impdef=on'])
extra_qemu_params=['-machine', 'virt', '-cpu', 'max'])-- 2.47.0