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[Qemu-devel] [RFC 16/24] avocado_qemu: Functional test for RHBZ1473203
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [RFC 16/24] avocado_qemu: Functional test for RHBZ1473203 |
Date: |
Fri, 20 Apr 2018 15:19:43 -0300 |
From: Lukáš Doktor <address@hidden>
Adds regresion test for RHBZ1473203 which runs VM with 16 numa nodes and
then verifies memory allocation is accurate before and after hotplugging
memory into default and 13th node.
Signed-off-by: Lukáš Doktor <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
---
tests/avocado/test_numa_hotplug.py | 116 +++++++++++++++++++++++++++++++++++++
1 file changed, 116 insertions(+)
create mode 100644 tests/avocado/test_numa_hotplug.py
diff --git a/tests/avocado/test_numa_hotplug.py
b/tests/avocado/test_numa_hotplug.py
new file mode 100644
index 0000000000..a99b8dcebf
--- /dev/null
+++ b/tests/avocado/test_numa_hotplug.py
@@ -0,0 +1,116 @@
+import re
+import time
+
+from avocado_qemu import test
+
+
+class TestNumaHotplug(test.QemuTest):
+ """
+ Verifies that "info numa" and "/sys/devices/system/node/" contains
+ correct values before/after inserting memory devices into default
+ and then into 13th numa node.
+
+ Associated bug trackers: RHBZ1473203
+ https://bugzilla.redhat.com/show_bug.cgi?id=1473203
+
+ Fixed in kernel commit dc421b200f91930c9c6a9586810ff8c232cf10fc.
+
+ :avocado: enable
+ :avocado: tags=RHBZ1473203,requires_linux,numa,memory,ppc64le
+ """
+
+ def setUp(self):
+ self.request_image()
+ self.vm.args.extend(["-m", "4G,slots=208,maxmem=80G"])
+ self.vm.args.extend(["-numa", "node"] * 16)
+ self.vm.launch()
+
+ def check_mem_console(self, console, exp):
+ """
+ Verifies that memory layout is according to exp using console/ssh
+
+ :param console: session
+ :param exp: list of MemTotals per node in MB, tolerance is +-100MB
+ """
+ out = console.cmd_output_safe("echo /sys/devices/system/node/node*")
+ nodes = re.findall(r"/sys/devices/system/node/node\d+", out)
+ self.assertEqual(len(nodes), len(exp), "Number of nodes is not "
+ "%s:\n%s" % (len(exp), out))
+ for i in xrange(len(exp)):
+ out = console.cmd_output_safe("cat /sys/devices/system/node/"
+ "node%s/meminfo" % i)
+ mem = re.search(r"MemTotal:\s*(\d+) kB", out)
+ self.assertTrue(mem, "Failed to obtain node%s MemTotal:\n%s"
+ % (i, out))
+ _exp = exp[i] * 1024
+ mem = int(mem.group(1))
+ self.assertGreater(mem, _exp - 102400, "TotalMem of node%s is not "
+ "%s+-51200 kb (%s)" % (i, _exp, mem))
+ self.assertLess(mem, _exp + 102400, "TotalMem of node%s is not "
+ "%s+-51200 kb (%s)" % (i, _exp, mem))
+
+ def check_mem_monitor(self, monitor, exp):
+ """
+ Verifies that memory layout is according to exp using QMP monitor
+
+ :param console: session
+ :param exp: list of MemTotals per node in MB, tolerance is +-100MB
+ """
+ ret = monitor("human-monitor-command", command_line="info numa")
+ out = ret["return"]
+ self.assertTrue(out.startswith("%s nodes" % len(exp)), "Number of "
+ "nodes is not %s:\n%s" % (len(exp), out))
+ for i in xrange(len(exp)):
+ _exp = "node %s size: %s MB" % (i, exp[i])
+ self.assertIn(_exp, out, "%s is not in 'info numa' output, "
+ "probably wrong memory size reported:\n%s"
+ % (_exp, out))
+
+ @staticmethod
+ def _retry_until_timeout(timeout, func, *args, **kwargs):
+ """
+ Repeat the function until it returns anything ignoring AssertionError.
+ After the deadline repeate the function one more time without ignoring
+ timeout.
+ """
+ end = time.time() + timeout
+ while time.time() < end:
+ try:
+ ret = func(*args, **kwargs)
+ except AssertionError:
+ continue
+ break
+ else:
+ ret = func(*args, **kwargs)
+ return ret
+
+ def test_hotplug_mem_into_node(self):
+ console = self.vm.get_console()
+ exp = [256] * 16
+ self.check_mem_monitor(self.vm.qmp, exp)
+ self.check_mem_console(console, exp)
+ cmd = "object_add memory-backend-ram,id=mem2,size=1G"
+ res = self.vm.qmp("human-monitor-command", command_line=cmd)
+ self.assertEqual(res["return"], "")
+ cmd = "device_add pc-dimm,id=dimm2,memdev=mem2"
+ res = self.vm.qmp("human-monitor-command", command_line=cmd)
+ self.assertEqual(res["return"], "")
+ exp = [1280] + [256] * 15
+ self.check_mem_monitor(self.vm.qmp, exp)
+ # Wait up to 10s to propagate the changes
+ self._retry_until_timeout(10, self.check_mem_console, console, exp)
+ cmd = "object_add memory-backend-ram,id=mem8,size=1G"
+ res = self.vm.qmp("human-monitor-command", command_line=cmd)
+ self.assertEqual(res["return"], "")
+ cmd = "device_add pc-dimm,id=dimm8,memdev=mem8,node=13"
+ res = self.vm.qmp("human-monitor-command", command_line=cmd)
+ self.assertEqual(res["return"], "")
+ time.sleep(5)
+ exp = [1280] + [256] * 12 + [1280] + [256] * 2
+ self.check_mem_monitor(self.vm.qmp, exp)
+ # Wait up to 10s to propagate the changes
+ self._retry_until_timeout(10, self.check_mem_console, console, exp)
+ console.close()
+
+ def tearDown(self):
+ self.vm.shutdown()
--
2.14.3
- [Qemu-devel] [RFC 06/24] avocado_qemu: Add " " after the default prompt regexp, (continued)
- [Qemu-devel] [RFC 06/24] avocado_qemu: Add " " after the default prompt regexp, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 07/24] avocado_qemu: Store "arch" in VM, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 08/24] avocado_qemu: Provide defaults for user and pass, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 09/24] avocado_qemu: Ignore kernel messages on get_console, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 10/24] avocado_qemu: Add support to request image for testing, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 11/24] avocado_qemu: Fix exception name in caller, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 12/24] avocado_qemu: Improve migration error message, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 13/24] avocado_qemu: Functional test for RHBZ#1431939, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 14/24] avocado_qemu: Functional test for RHBZ#1447027, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 15/24] avocado_qemu: Functional test for RHBZ#1436616, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 16/24] avocado_qemu: Functional test for RHBZ1473203,
Eduardo Habkost <=
- [Qemu-devel] [RFC 17/24] avocado_qemu: Remove duplicate PortTracker implementation, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 19/24] avocado_qemu: Clean unneeded 'pass', Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 18/24] avocado_qemu: Simplify the installation instructions, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 20/24] avocado_qemu: Set QMP log level to INFO, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 22/24] avocado_qemu: Tests fixes, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 21/24] avocado_qemu: Introduce the add_image() VM API, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 23/24] avocado_qemu: Force vmimage distro, Eduardo Habkost, 2018/04/20
- [Qemu-devel] [RFC 24/24] avocado_qemu: Add a few VNC related tests, Eduardo Habkost, 2018/04/20
- Re: [Qemu-devel] [RFC 00/24] Avocado-based functional tests, no-reply, 2018/04/21