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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760438513; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VDmjhxB9EqU93W+jLLqJRJ58lVCoCiWGKQ5+SlHcdug=; b=ZeW1vdV2g3mU4PG60lB3Y7K4h37Un9xTobJjwBWT8dN3s8ZpdvclPkYDnO7nVoIA798fhi vRNCrhcnc0Z1+MV7oFqh7Xkd+metQKRMoOtMKsvj9qJGAzUuihKbGDEZnLPXA95CoRUsln UlZkoMHSvjPJHH/fu0IBj+xczET92f4= X-MC-Unique: Bvd6BXJXOBuPbcaIVfm9JA-1 X-Mimecast-MFC-AGG-ID: Bvd6BXJXOBuPbcaIVfm9JA_1760438510 From: Thomas Huth To: Kevin Wolf , qemu-block@nongnu.org Cc: Hanna Reitz , qemu-devel@nongnu.org Subject: [PATCH v2 2/3] tests/qemu-iotests: Improve the dry run list to speed up thorough testing Date: Tue, 14 Oct 2025 12:41:41 +0200 Message-ID: <20251014104142.1281028-3-thuth@redhat.com> In-Reply-To: <20251014104142.1281028-1-thuth@redhat.com> References: <20251014104142.1281028-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Thomas Huth When running the tests in thorough mode, e.g. with: make -j$(nproc) check SPEED=3Dthorough we currently always get a huge amount of total tests that the test runner tries to execute (2457 in my case), but a big bunch of them are only skipped (1099 in my case, meaning that only 1358 got executed). This happens because we try to run the whole set of iotests for multiple image formats while a lot of the tests can only run with one certain format only and thus are marked as SKIP during execution. This is quite a waste of time during each test run, and also unnecessarily blows up the displayed list of executed tests in the console output. Thus let's try to be a little bit smarter: If the "check" script is run with "-n" and an image format switch (like "-qed") at the same time (which is what we do for discovering the tests for the meson test runner already), only report the tests that likely support the given format instead of providing the whole list of all tests. We can determine whether a test supports a format or not by looking at the lines in the file that contain a "supported_fmt" or "unsupported_fmt" statement. This is only heuristics, of course, but it is good enough for running the iotests via "make check-block" - I double-checked that the list of executed tests does not get changed by this patch, it's only the tests that are skipped anyway that are now not run anymore. This way the amount of total tests drops from 2457 to 1432 for me, and the amount of skipped tests drops from 1099 to just 74 (meaning that we still properly run 1432 - 74 =3D 1358 tests as we did before). Signed-off-by: Thomas Huth --- tests/qemu-iotests/check | 42 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 39 insertions(+), 3 deletions(-) diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check index d9b7c1d5989..3941eac8e21 100755 --- a/tests/qemu-iotests/check +++ b/tests/qemu-iotests/check @@ -17,6 +17,7 @@ # along with this program. If not, see . =20 import os +import re import sys import argparse import shutil @@ -82,7 +83,7 @@ def make_argparser() -> argparse.ArgumentParser: g_env.add_argument('-i', dest=3D'aiomode', default=3D'threads', help=3D'sets AIOMODE environment variable') =20 - p.set_defaults(imgfmt=3D'raw', imgproto=3D'file') + p.set_defaults(imgproto=3D'file') =20 format_list =3D ['raw', 'bochs', 'cloop', 'parallels', 'qcow', 'qcow2', 'qed', 'vdi', 'vpc', 'vhdx', 'vmdk', 'luks', 'dmg', 'vv= fat'] @@ -137,15 +138,50 @@ def make_argparser() -> argparse.ArgumentParser: return p =20 =20 +def dry_run_list(test_dir, imgfmt, testlist): + for t in testlist: + if not imgfmt: + print('\n'.join([os.path.basename(t)])) + continue + # If a format has been given, we look for the "supported_fmt" + # and the "unsupported_fmt" lines in the test and try to find out + # whether the format is supported or not. This is only heuristics + # (it can e.g. fail if the "unsupported_fmts" and "supported_fmts" + # statements are in the same line), but it should be good enough + # to get a proper list for "make check-block" + with open(os.path.join(test_dir, t), 'r', encoding=3D'utf-8') as f= h: + supported =3D True + check_next_line =3D False + sd =3D "[ \t'\"]" # Start delimiter + ed =3D "([ \t'\"]|$)" # End delimiter + for line in fh: + if 'unsupported_fmt' in line: + if re.search(sd + imgfmt + ed, line): + supported =3D False + break + elif 'supported_fmt' in line or check_next_line: + if re.search(sd + 'generic' + ed, line): + continue # Might be followed by "unsupported"= line + supported =3D re.search(sd + imgfmt + ed, line) + check_next_line =3D not ']' in line and \ + ('supported_fmts=3D[' in line or check_next_li= ne) + if supported or not check_next_line: + break + if supported: + print('\n'.join([os.path.basename(t)])) + + if __name__ =3D=3D '__main__': warnings.simplefilter("default") os.environ["PYTHONWARNINGS"] =3D "default" =20 args =3D make_argparser().parse_args() =20 + image_format =3D args.imgfmt or 'raw' + env =3D TestEnv(source_dir=3Dargs.source_dir, build_dir=3Dargs.build_dir, - imgfmt=3Dargs.imgfmt, imgproto=3Dargs.imgproto, + imgfmt=3Dimage_format, imgproto=3Dargs.imgproto, aiomode=3Dargs.aiomode, cachemode=3Dargs.cachemode, imgopts=3Dargs.imgopts, misalign=3Dargs.misalign, debug=3Dargs.debug, valgrind=3Dargs.valgrind, @@ -189,7 +225,7 @@ if __name__ =3D=3D '__main__': =20 if args.dry_run: with env: - print('\n'.join([os.path.basename(t) for t in tests])) + dry_run_list(env.source_iotests, args.imgfmt, tests) else: with TestRunner(env, tap=3Dargs.tap, color=3Dargs.color) as tr: --=20 2.51.0