summaryrefslogtreecommitdiff
path: root/tools
diff options
context:
space:
mode:
authorPeter Xu <peterx@redhat.com>2023-06-29 00:53:10 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-08-18 20:12:04 +0300
commitde4ec376df7bd2db4aa887b350a681686ea54064 (patch)
tree4145882817147f2e7693cf4b35d39fc1ebdb6ce6 /tools
parent2bc48136224592fe4f8f50629d0469d6d0274207 (diff)
downloadlinux-de4ec376df7bd2db4aa887b350a681686ea54064.tar.xz
selftests/mm: add gup test matrix in run_vmtests.sh
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 Link: https://lkml.kernel.org/r/20230628215310.73782-9-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: James Houghton <jthoughton@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Kirill A . Shutemov <kirill@shutemov.name> Cc: Lorenzo Stoakes <lstoakes@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools')
-rwxr-xr-xtools/testing/selftests/mm/run_vmtests.sh37
1 files changed, 32 insertions, 5 deletions
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index 824e651f62f4..9666c0c171ab 100755
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -90,6 +90,30 @@ test_selected() {
fi
}
+run_gup_matrix() {
+ # -t: thp=on, -T: thp=off, -H: hugetlb=on
+ local hugetlb_mb=$(( 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: pin-longterm
+ for test_cmd in -u -U -a -b -L; do
+ # -w: write=1, -W: write=0
+ 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 form
+ for num in "-n 1" "-n 512" "-n 123"; do
+ CATEGORY="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" = "HugePages_Free:" ]; then
@@ -194,13 +218,16 @@ fi
CATEGORY="mmap" run_test ./map_fixed_noreplace
-# get_user_pages_fast() benchmark
-CATEGORY="gup_test" run_test ./gup_test -u
-# pin_user_pages_fast() benchmark
-CATEGORY="gup_test" run_test ./gup_test -a
+if $RUN_ALL; then
+ run_gup_matrix
+else
+ # get_user_pages_fast() benchmark
+ CATEGORY="gup_test" run_test ./gup_test -u
+ # pin_user_pages_fast() benchmark
+ CATEGORY="gup_test" run_test ./gup_test -a
+fi
# Dump pages 0, 19, and 4096, using pin_user_pages:
CATEGORY="gup_test" run_test ./gup_test -ct -F 0x1 0 19 0x1000
-
CATEGORY="gup_test" run_test ./gup_longterm
CATEGORY="userfaultfd" run_test ./uffd-unit-tests