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(cpe5c7695f3aee0-cm5c7695f3aede.cpe.net.cable.rogers.com. [99.254.144.39]) by smtp.gmail.com with ESMTPSA id p3-20020a0cfac3000000b00631fea4d5bcsm6277797qvo.95.2023.06.28.14.53.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jun 2023 14:53:23 -0700 (PDT) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: David Hildenbrand , "Kirill A . Shutemov" , Andrew Morton , Andrea Arcangeli , Mike Rapoport , John Hubbard , Matthew Wilcox , Mike Kravetz , Vlastimil Babka , Yang Shi , James Houghton , Jason Gunthorpe , Lorenzo Stoakes , Hugh Dickins , peterx@redhat.com Subject: [PATCH v4 8/8] selftests/mm: Add gup test matrix in run_vmtests.sh Date: Wed, 28 Jun 2023 17:53:10 -0400 Message-ID: <20230628215310.73782-9-peterx@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230628215310.73782-1-peterx@redhat.com> References: <20230628215310.73782-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add a matrix for testing gup based on the current gup_test. Only run the matrix when -a is specified because it's a bit slow. It covers: - Different types of huge pages: thp, hugetlb, or no huge page - Permissions: Write / Read-only - Fast-gup, with/without - Types of the GUP: pin / gup / longterm pins - Shared / Private memories - GUP size: 1 / 512 / random page sizes Acked-by: David Hildenbrand Signed-off-by: Peter Xu --- tools/testing/selftests/mm/run_vmtests.sh | 37 ++++++++++++++++++++--- 1 file changed, 32 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/self= tests/mm/run_vmtests.sh index 824e651f62f4..9666c0c171ab 100644 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -90,6 +90,30 @@ test_selected() { fi } =20 +run_gup_matrix() { + # -t: thp=3Don, -T: thp=3Doff, -H: hugetlb=3Don + local hugetlb_mb=3D$(( needmem_KB / 1024 )) + + for huge in -t -T "-H -m $hugetlb_mb"; do + # -u: gup-fast, -U: gup-basic, -a: pin-fast, -b: pin-basic, -L: pi= n-longterm + for test_cmd in -u -U -a -b -L; do + # -w: write=3D1, -W: write=3D0 + for write in -w -W; do + # -S: shared + for share in -S " "; do + # -n: How many pages to fetch together? 512 is special + # because it's default thp size (or 2M on x86), 123 to + # just test partial gup when hit a huge in whatever fo= rm + for num in "-n 1" "-n 512" "-n 123"; do + CATEGORY=3D"gup_test" run_test ./gup_test \ + $huge $test_cmd $write $share $num + done + done + done + done + done +} + # get huge pagesize and freepages from /proc/meminfo while read -r name size unit; do if [ "$name" =3D "HugePages_Free:" ]; then @@ -194,13 +218,16 @@ fi =20 CATEGORY=3D"mmap" run_test ./map_fixed_noreplace =20 -# get_user_pages_fast() benchmark -CATEGORY=3D"gup_test" run_test ./gup_test -u -# pin_user_pages_fast() benchmark -CATEGORY=3D"gup_test" run_test ./gup_test -a +if $RUN_ALL; then + run_gup_matrix +else + # get_user_pages_fast() benchmark + CATEGORY=3D"gup_test" run_test ./gup_test -u + # pin_user_pages_fast() benchmark + CATEGORY=3D"gup_test" run_test ./gup_test -a +fi # Dump pages 0, 19, and 4096, using pin_user_pages: CATEGORY=3D"gup_test" run_test ./gup_test -ct -F 0x1 0 19 0x1000 - CATEGORY=3D"gup_test" run_test ./gup_longterm =20 CATEGORY=3D"userfaultfd" run_test ./uffd-unit-tests --=20 2.41.0