forked from Minki/linux
64c349f4ae
Performance of get_user_pages_fast() is critical for some workloads, but it's tricky to test it directly. This patch provides /sys/kernel/debug/gup_benchmark that helps with testing performance of it. See tools/testing/selftests/vm/gup_benchmark.c for userspace counterpart. Link: http://lkml.kernel.org/r/20170908215603.9189-2-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thorsten Leemhuis <regressions@leemhuis.info> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Huang Ying <ying.huang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
34 lines
849 B
Makefile
34 lines
849 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Makefile for vm selftests
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ifndef OUTPUT
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OUTPUT := $(shell pwd)
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endif
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CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
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LDLIBS = -lrt
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TEST_GEN_FILES = compaction_test
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TEST_GEN_FILES += hugepage-mmap
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TEST_GEN_FILES += hugepage-shm
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TEST_GEN_FILES += map_hugetlb
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TEST_GEN_FILES += mlock2-tests
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TEST_GEN_FILES += on-fault-limit
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TEST_GEN_FILES += thuge-gen
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TEST_GEN_FILES += transhuge-stress
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TEST_GEN_FILES += userfaultfd
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TEST_GEN_FILES += mlock-random-test
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TEST_GEN_FILES += virtual_address_range
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TEST_GEN_FILES += gup_benchmark
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TEST_PROGS := run_vmtests
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include ../lib.mk
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$(OUTPUT)/userfaultfd: ../../../../usr/include/linux/kernel.h
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$(OUTPUT)/userfaultfd: LDLIBS += -lpthread
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$(OUTPUT)/mlock-random-test: LDLIBS += -lcap
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../../../../usr/include/linux/kernel.h:
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make -C ../../../.. headers_install
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