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Re: [PATCH v9 07/16] qtest/numa-test: Use detailed -smp CLI in test_def_


From: wangyanan (Y)
Subject: Re: [PATCH v9 07/16] qtest/numa-test: Use detailed -smp CLI in test_def_cpu_split
Date: Fri, 17 Sep 2021 15:33:27 +0800
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0


On 2021/9/10 16:17, Andrew Jones wrote:
On Fri, Sep 10, 2021 at 03:30:16PM +0800, Yanan Wang wrote:
Since commit 80d7835749 (qemu-options: rewrite help for -smp options),
the preference of sockets/cores in -smp parsing is considered liable
to change, and actually we are going to change it in a coming commit.
So it'll be more stable to use detailed -smp CLIs in the testcases
that have strong dependency on the parsing results.

Currently, test_def_cpu_split use "-smp 8" and will get 8 CPU sockets
based on current parsing rule. But if we change to prefer cores over
sockets we will get one CPU socket will 8 cores, and this testcase
will not get expected numa set by default on x86_64 (Ok on aarch64).

So now explicitly use "-smp 8,sockets=8" to avoid affect from parsing
logic change.

Cc: Thomas Huth <thuth@redhat.com>
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
  tests/qtest/numa-test.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/qtest/numa-test.c b/tests/qtest/numa-test.c
index fd7a2e80a0..90bf68a5b3 100644
--- a/tests/qtest/numa-test.c
+++ b/tests/qtest/numa-test.c
@@ -42,7 +42,8 @@ static void test_def_cpu_split(const void *data)
      g_autofree char *s = NULL;
      g_autofree char *cli = NULL;
- cli = make_cli(data, "-machine smp.cpus=8 -numa node,memdev=ram -numa node");
+    cli = make_cli(data, "-machine smp.cpus=8,smp.sockets=8 "
+                         "-numa node,memdev=ram -numa node");
      qts = qtest_init(cli);
s = qtest_hmp(qts, "info numa");
--
2.23.0

Reviewed-by: Andrew Jones <drjones@redhat.com>

.
Thanks to Andrew for the reviewing.

Yanan
.




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