[Xen-devel] [PATCH 3 of 5] Add testcase for multi-cpumask cpus parameter

[Ryan Harper <ryanh@xxxxxxxxxx>]

2 files changed, 83 insertions(+), 1 deletion(-)
tools/xm-test/tests/create/17_create_cpusparm_pos.py |   81 ++++++++++++++++++
tools/xm-test/tests/create/Makefile.am               |    3 


# HG changeset patch
# User Ryan Harper <ryanh@xxxxxxxxxx>
# Date 1155579423 18000
# Node ID 734570be7e0592f20e6f97089c89541feed03abc
# Parent  7281c7aa89220b5bb20c9275a65dee37be6da298
Add testcase for multi-cpumask cpus parameter

diff -r 7281c7aa8922 -r 734570be7e05 tools/xm-test/tests/create/Makefile.am
--- a/tools/xm-test/tests/create/Makefile.am    Mon Aug 14 13:16:30 2006 -0500
+++ b/tools/xm-test/tests/create/Makefile.am    Mon Aug 14 13:17:03 2006 -0500
@@ -14,7 +14,8 @@ TESTS = 01_create_basic_pos.test \
        13_create_multinic_pos.test \
        14_create_blockroot_pos.test \
        15_create_smallmem_pos.test \
-       16_create_smallmem_neg.test
+       16_create_smallmem_neg.test \
+       17_create_cpusparm_pos.py
 
 EXTRA_DIST = $(TESTS)
 
diff -r 7281c7aa8922 -r 734570be7e05 
tools/xm-test/tests/create/17_create_cpusparm_pos.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/xm-test/tests/create/17_create_cpusparm_pos.py      Mon Aug 14 
13:17:03 2006 -0500
@@ -0,0 +1,81 @@
+#!/usr/bin/python
+
+# Copyright (C) International Business Machines Corp., 2006
+# Authors: Dan Smith <danms@xxxxxxxxxx>
+#        : Ryan Harper <ryanh@xxxxxxxxxx>
+#
+# This test will examine Xend's cpu/cpus parameter parsing ability.  The cpus
+# parameter controls which physical cpus the domain's vcpus run upon.  We can
+# set a single cpumask for all vcpus, or we can build up lists of cpumasks 
+# to be applied individually.  The test covers the following cases:
+#
+# single vcpu tests
+# multi-vcpu tests using same values
+# multi-vcpu tests using differing values per-vcpu
+# multi-vcpu tests as above, list notation
+#
+# format: (#vcpus, cpus= value, list of resulting affinity values)
+cpu_strings=[ (2, '0',    ["0", "0"]),
+              (2, '1',    ["1", "1"]),
+              (2, '0|1',  ["0", "1"]),
+              (2, '1|0',  ["1", "0"]),
+              (2, '0-1',  ["0-1", "0-1"]),
+              (2, '[0]',        ["0", "0"]),
+              (2, '[1]',        ["1", "1"]),
+              (2, '[0, 1]',     ["0", "1"]),
+              (2, '[1, 0]',     ["1", "0"]),
+              (2, '["0-1"]',    ["0-1", "0-1"]),
+              (2, '["0-1,^1"]', ["0", "0"]),
+              (4, '0',             ["0", "0", "0", "0"]),
+              (4, '1',             ["1", "1", "1", "1"]),
+              (4, '0|1|2|3',       ["0", "1", "2", "3"]),
+              (4, '1,3|0,2|0|0-3', ["1,3", "0,2", "0", "0-3"]),
+              (4, '[0]',                        ["0", "0", "0", "0"]),
+              (4, '[1]',                        ["1", "1", "1", "1"]),
+              (4, '[0, 1, 2, 3]',               ["0", "1", "2", "3"]),
+              (4, '["1,3", "0,2", "0", "0-3"]', ["1,3", "0,2", "0", "0-3"]) ]
+
+
+              
+from XmTestLib import *
+
+
+# Verify that we can run this test on this host
+min_smplevel = min(map(lambda (x,y,z): x, cpu_strings))
+cpus = smpConcurrencyLevel()
+if len(filter(lambda (x,y,z): x<=cpus, cpu_strings)) < 1:
+    print "*** NOTE: This machine does not have enough logical processors"
+    print "          to run this test properly.  Retry on a machine that"
+    print "          has at least %s logical processors." %(min_smplevel)
+    SKIP("Host not capable of running test")
+
+
+# for each test string, start up the domain and then examine vcpuinfo to
+# determine whether the affinity value for a particular vcpu was correct.
+# filter out tests that the host can't run
+for (x,y,z) in filter(lambda (x,y,z): x<=cpus, cpu_strings):
+    # we have to work around extraConfig adding leading double quotes
+    y = y.replace("\"", "'")
+    domain = XmTestDomain(extraConfig={"vcpus": x, "cpus": y})
+
+    #kick off domain
+    try:
+        console = domain.start()
+    except DomainError, e:
+        FAIL("Unable to start a domain with vcpus=%s cpus=%s"%(x, y))
+
+    # get vcpuinfo on the domain's vcpus.
+    vcpuinfo = getVcpuInfo(domain.getName())
+
+    # for each vcpu, check the affinity value
+    for a in range(0,x):
+
+        # if the host smp level is equal to required level, then the resulting
+        # affinity value is truncated to 'any cpu' by xend, if we fail to match
+        # we also check if we can match with 'any cpu'
+        if vcpuinfo[a]['affinity'] != z[a] and \
+            (cpus == x and vcpuinfo[a]['affinity'] != "any cpu"):
+            FAIL("Failed to set VCPU affinity for cpus=%s ([%s] != [%s])"%(
+                 y, vcpuinfo[a]['affinity'], z[a]))
+
+    domain.destroy()

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