From: SeongJae Park <sjpark@amazon.com>
To: <akpm@linux-foundation.org>
Cc: SeongJae Park <sjpark@amazon.de>, <Jonathan.Cameron@Huawei.com>,
<aarcange@redhat.com>, <acme@kernel.org>,
<alexander.shishkin@linux.intel.com>, <amit@kernel.org>,
<benh@kernel.crashing.org>, <brendan.d.gregg@gmail.com>,
<brendanhiggins@google.com>, <cai@lca.pw>,
<colin.king@canonical.com>, <corbet@lwn.net>, <david@redhat.com>,
<dwmw@amazon.com>, <foersleo@amazon.de>, <irogers@google.com>,
<jolsa@redhat.com>, <kirill@shutemov.name>,
<mark.rutland@arm.com>, <mgorman@suse.de>, <minchan@kernel.org>,
<mingo@redhat.com>, <namhyung@kernel.org>, <peterz@infradead.org>,
<rdunlap@infradead.org>, <riel@surriel.com>,
<rientjes@google.com>, <rostedt@goodmis.org>, <rppt@kernel.org>,
<sblbir@amazon.com>, <shakeelb@google.com>, <shuah@kernel.org>,
<sj38.park@gmail.com>, <snu@amazon.de>, <vbabka@suse.cz>,
<vdavydov.dev@gmail.com>, <yang.shi@linux.alibaba.com>,
<ying.huang@intel.com>, <linux-damon@amazon.com>,
<linux-mm@kvack.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: [RFC v5 03/11] mm/damon-test: Add more unit tests for 'init_regions'
Date: Tue, 7 Jul 2020 16:45:32 +0200 [thread overview]
Message-ID: <20200707144540.21216-4-sjpark@amazon.com> (raw)
In-Reply-To: <20200707144540.21216-1-sjpark@amazon.com>
From: SeongJae Park <sjpark@amazon.de>
This commit adds more test cases for the new feature, 'init_regions'.
Signed-off-by: SeongJae Park <sjpark@amazon.de>
---
mm/damon-test.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/mm/damon-test.h b/mm/damon-test.h
index b31c7fe913ca..716594342ff1 100644
--- a/mm/damon-test.h
+++ b/mm/damon-test.h
@@ -152,6 +152,58 @@ static void damon_test_set_recording(struct kunit *test)
KUNIT_EXPECT_STREQ(test, ctx->rfile_path, "foo");
}
+static void damon_test_set_init_regions(struct kunit *test)
+{
+ struct damon_ctx *ctx = &damon_user_ctx;
+ int pids[] = {1, 2, 3};
+ /* Each line represents one region in ``<pid> <start> <end>`` */
+ char * const valid_inputs[] = {"2 10 20\n 2 20 30\n2 35 45",
+ "2 10 20\n",
+ "2 10 20\n1 39 59\n1 70 134\n 2 20 25\n",
+ ""};
+ /* Reading the file again will show sorted, clean output */
+ char * const valid_expects[] = {"2 10 20\n2 20 30\n2 35 45\n",
+ "2 10 20\n",
+ "1 39 59\n1 70 134\n2 10 20\n2 20 25\n",
+ ""};
+ char * const invalid_inputs[] = {"4 10 20\n", /* pid not exists */
+ "2 10 20\n 2 14 26\n", /* regions overlap */
+ "1 10 20\n2 30 40\n 1 5 8"}; /* not sorted by address */
+ char *input, *expect;
+ int i, rc;
+ char buf[256];
+
+ damon_set_pids(ctx, pids, 3);
+
+ /* Put valid inputs and check the results */
+ for (i = 0; i < ARRAY_SIZE(valid_inputs); i++) {
+ input = valid_inputs[i];
+ expect = valid_expects[i];
+
+ rc = set_init_regions(ctx, input, strnlen(input, 256));
+ KUNIT_EXPECT_EQ(test, rc, 0);
+
+ memset(buf, 0, 256);
+ sprint_init_regions(ctx, buf, 256);
+
+ KUNIT_EXPECT_STREQ(test, (char *)buf, expect);
+ }
+ /* Put invlid inputs and check the return error code */
+ for (i = 0; i < ARRAY_SIZE(invalid_inputs); i++) {
+ input = invalid_inputs[i];
+ pr_info("input: %s\n", input);
+ rc = set_init_regions(ctx, input, strnlen(input, 256));
+ KUNIT_EXPECT_EQ(test, rc, -EINVAL);
+
+ memset(buf, 0, 256);
+ sprint_init_regions(ctx, buf, 256);
+
+ KUNIT_EXPECT_STREQ(test, (char *)buf, "");
+ }
+
+ damon_set_pids(ctx, NULL, 0);
+}
+
static void __link_vmas(struct vm_area_struct *vmas, ssize_t nr_vmas)
{
int i, j;
@@ -635,6 +687,7 @@ static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damon_test_regions),
KUNIT_CASE(damon_test_set_pids),
KUNIT_CASE(damon_test_set_recording),
+ KUNIT_CASE(damon_test_set_init_regions),
KUNIT_CASE(damon_test_three_regions_in_vmas),
KUNIT_CASE(damon_test_aggregate),
KUNIT_CASE(damon_test_write_rbuf),
--
2.17.1
next prev parent reply other threads:[~2020-07-07 14:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 14:45 [RFC v5 00/11] DAMON: Support Physical Memory Address Space Monitoring SeongJae Park
2020-07-07 14:45 ` [RFC v5 01/11] mm/damon/debugfs: Allow users to set initial monitoring target regions SeongJae Park
2020-07-07 14:45 ` [RFC v5 02/11] tools/damon: Support init target regions specification SeongJae Park
2020-07-07 14:45 ` SeongJae Park [this message]
2020-07-07 20:01 ` [RFC v5 03/11] mm/damon-test: Add more unit tests for 'init_regions' Brendan Higgins
2020-07-07 14:45 ` [RFC v5 04/11] selftests/damon/_chk_record: Do not check number of gaps SeongJae Park
2020-07-07 14:45 ` [RFC v5 05/11] Docs/damon: Document 'initial_regions' feature SeongJae Park
2020-07-07 14:45 ` [RFC v5 06/11] mm/rmap: Export essential functions for rmap_run SeongJae Park
2020-07-07 14:45 ` [RFC v5 07/11] mm/damon: Implement callbacks for physical memory monitoring SeongJae Park
2020-07-07 14:45 ` [RFC v5 08/11] mm/damon/debugfs: Support " SeongJae Park
2020-07-07 14:45 ` [RFC v5 09/11] tools/damon/record: " SeongJae Park
2020-07-07 14:45 ` [RFC v5 10/11] tools/damon/record: Support NUMA specific recording SeongJae Park
2020-07-07 14:45 ` [RFC v5 11/11] Docs/damon: Document physical memory monitoring support SeongJae Park
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