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authorJohn Hubbard <jhubbard@nvidia.com>2020-12-14 19:05:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 12:13:38 -0800
commitd943fe81e0bf49dda1369e87d49c5276a02698df (patch)
tree98c9e46ab9605da0806df312478f36ebd19b350c
parentf4f9bda418ab8b4dbc5372e9e2a28162f7777154 (diff)
selftests/vm: run_vmtests.sh: update and clean up gup_test invocation
Run benchmarks on the _fast variants of gup and pup, as originally intended. Run the new gup_test sub-test: dump pages. In addition to exercising the dump_page() call, it also demonstrates the various options you can use to specify which pages to dump, and how. Link: https://lkml.kernel.org/r/20201026064021.3545418-8-jhubbard@nvidia.com Signed-off-by: John Hubbard <jhubbard@nvidia.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rwxr-xr-xtools/testing/selftests/vm/run_vmtests28
1 files changed, 20 insertions, 8 deletions
diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests
index d1843d5f3c30..4ac84b350d9f 100755
--- a/tools/testing/selftests/vm/run_vmtests
+++ b/tools/testing/selftests/vm/run_vmtests
@@ -123,10 +123,10 @@ else
echo "[PASS]"
fi
-echo "--------------------------------------------"
-echo "running 'gup_test -U' (normal/slow gup)"
-echo "--------------------------------------------"
-./gup_test -U
+echo "------------------------------------------------------"
+echo "running: gup_test -u # get_user_pages_fast() benchmark"
+echo "------------------------------------------------------"
+./gup_test -u
if [ $? -ne 0 ]; then
echo "[FAIL]"
exitcode=1
@@ -134,10 +134,22 @@ else
echo "[PASS]"
fi
-echo "------------------------------------------"
-echo "running gup_test -b (pin_user_pages)"
-echo "------------------------------------------"
-./gup_test -b
+echo "------------------------------------------------------"
+echo "running: gup_test -a # pin_user_pages_fast() benchmark"
+echo "------------------------------------------------------"
+./gup_test -a
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ exitcode=1
+else
+ echo "[PASS]"
+fi
+
+echo "------------------------------------------------------------"
+echo "# Dump pages 0, 19, and 4096, using pin_user_pages:"
+echo "running: gup_test -ct -F 0x1 0 19 0x1000 # dump_page() test"
+echo "------------------------------------------------------------"
+./gup_test -ct -F 0x1 0 19 0x1000
if [ $? -ne 0 ]; then
echo "[FAIL]"
exitcode=1