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From d228c0e688e7a0771d30457d21b38d745cea63bf Mon Sep 17 00:00:00 2001
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Message-Id: <d228c0e688e7a0771d30457d21b38d745cea63bf.1566225007.git.aquini@redhat.com>
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In-Reply-To: <d42f467a923dfc09309acb7a83b42e3285fbd8f4.1566225007.git.aquini@redhat.com>
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References: <d42f467a923dfc09309acb7a83b42e3285fbd8f4.1566225007.git.aquini@redhat.com>
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From: Sandipan Das <sandipan@linux.ibm.com>
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Date: Fri, 16 Aug 2019 11:45:08 +0530
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Subject: [RHEL7 PATCH 18/31] mmap: tests: Run tests with correct huge page
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count
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This ensures that the mmap-gettest and mmap-cow tests are run
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with the correct count of free huge pages. Previously, it was
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always using the free page count for the default huge page size
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for all huge page sizes. Since these counts can differ, trying
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to get more pages via mmap() than what is available in the pool
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can make these tests fail.
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Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
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Signed-off-by: Eric B Munson <eric@munsonfam.org>
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Signed-off-by: Rafael Aquini <aquini@redhat.com>
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---
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tests/run_tests.py | 13 +++++++++----
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1 file changed, 9 insertions(+), 4 deletions(-)
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diff --git a/tests/run_tests.py b/tests/run_tests.py
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index f19024f..b132da2 100755
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--- a/tests/run_tests.py
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+++ b/tests/run_tests.py
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@@ -697,14 +697,19 @@ def stress_tests():
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# Don't update NRPAGES every time like above because we want to catch the
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# failures that happen when the kernel doesn't release all of the huge pages
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# after a stress test terminates
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- (rc, nr_pages) = free_hpages()
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+ nr_pages = {p: free_hpages(p)[1] for p in pagesizes}
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- do_test(("mmap-gettest", repr(iterations), repr(nr_pages)))
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+ for p in pagesizes:
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+ cmd = ("mmap-gettest", repr(iterations), repr(nr_pages[p]))
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+ do_test_with_pagesize(p, cmd)
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- # mmap-cow needs a hugepages for each thread plus one extra
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- do_test(("mmap-cow", repr(nr_pages-1), repr(nr_pages)))
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+ for p in pagesizes:
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+ # mmap-cow needs a hugepage for each thread plus one extra
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+ cmd = ("mmap-cow", repr(nr_pages[p]-1), repr(nr_pages[p]))
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+ do_test_with_pagesize(p, cmd)
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(rc, tot_pages) = total_hpages()
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+ nr_pages = nr_pages[system_default_hpage_size]
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limit = system_default_hpage_size * tot_pages
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threads = 10 # Number of threads for shm-fork
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--
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1.8.3.1
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