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nodeinfo: deal with offline cpus in a node

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Commit 80533ca forgot to think about offline cpus.  When a node
cpu is offline, then its topology/ subdirectory is not present,
leading to spurious error messages leaked to the user such as:

libvir:  error : cannot open /home/dummy/libvirt/tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu7/topology/physical_package_id: No such file or directory

Fix that, as well as test it; the test data is gathered from a
machine with one NUMA node, hyperthreading, and with 2 of the
8 cpus offline.

* src/nodeinfo.c (virNodeParseNode): Don't parse topology of
offline cpus.
* tests/nodeinfotest.c (mymain): Run new test.
* tests/nodeinfodata/linux-nodeinfo-sysfs-test-6*: New data.
This commit is contained in:
Eric Blake 2012-07-17 19:46:29 -06:00
parent 0fbafe9c50
commit 03e0ec10b4
40 changed files with 220 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/nodeinfo.c
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@ -225,6 +225,12 @@ virNodeParseNode(const char *node, int *sockets, int *cores, int *threads)
if (sscanf(cpudirent->d_name, "cpu%u", &cpu) != 1)
continue;
if ((online = virNodeGetCpuValue(node, cpu, "online", true)) < 0)
goto cleanup;
if (!online)
continue;
/* Parse socket */
sock = virNodeParseSocket(node, cpu);
CPU_SET(sock, &sock_map);

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6-cpu-x86-output.txt Normal file
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@ -0,0 +1 @@
CPUs: 6/8, MHz: 1596, Nodes: 1, Sockets: 1, Cores: 4, Threads: 2

150
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6-x86.cpuinfo Normal file
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@ -0,0 +1,150 @@
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5640 @ 2.67GHz
stepping : 2
cpu MHz : 1596.000
cache size : 12288 KB
physical id : 0
siblings : 6
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 5333.90
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5640 @ 2.67GHz
stepping : 2
cpu MHz : 1596.000
cache size : 12288 KB
physical id : 0
siblings : 6
core id : 1
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 5333.90
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5640 @ 2.67GHz
stepping : 2
cpu MHz : 1596.000
cache size : 12288 KB
physical id : 0
siblings : 6
core id : 9
cpu cores : 4
apicid : 18
initial apicid : 18
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 5333.90
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5640 @ 2.67GHz
stepping : 2
cpu MHz : 1596.000
cache size : 12288 KB
physical id : 0
siblings : 6
core id : 10
cpu cores : 4
apicid : 20
initial apicid : 20
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 5333.90
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 4
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5640 @ 2.67GHz
stepping : 2
cpu MHz : 1596.000
cache size : 12288 KB
physical id : 0
siblings : 6
core id : 0
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 5333.90
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 6
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5640 @ 2.67GHz
stepping : 2
cpu MHz : 1596.000
cache size : 12288 KB
physical id : 0
siblings : 6
core id : 9
cpu cores : 4
apicid : 19
initial apicid : 19
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 5333.90
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu0/topology/core_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu0/topology/physical_package_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu0/topology/thread_siblings Normal file
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@ -0,0 +1 @@
11

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu1/online Normal file
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@ -0,0 +1 @@
1

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu1/topology/core_id Normal file
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@ -0,0 +1 @@
1

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu1/topology/physical_package_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu1/topology/thread_siblings Normal file
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@ -0,0 +1 @@
02

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tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu2/online Normal file
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@ -0,0 +1 @@
1

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tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu2/topology/core_id Normal file
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@ -0,0 +1 @@
9

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu2/topology/physical_package_id Normal file
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@ -0,0 +1 @@
0

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tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu2/topology/thread_siblings Normal file
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@ -0,0 +1 @@
44

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu3/online Normal file
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@ -0,0 +1 @@
1

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu3/topology/core_id Normal file
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@ -0,0 +1 @@
10

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu3/topology/physical_package_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu3/topology/thread_siblings Normal file
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@ -0,0 +1 @@
08

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu4/online Normal file
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@ -0,0 +1 @@
1

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu4/topology/core_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu4/topology/physical_package_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu4/topology/thread_siblings Normal file
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@ -0,0 +1 @@
11

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu5/online Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu6/online Normal file
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@ -0,0 +1 @@
1

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu6/topology/core_id Normal file
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@ -0,0 +1 @@
9

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu6/topology/physical_package_id Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu6/topology/thread_siblings Normal file
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@ -0,0 +1 @@
44

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/cpu/cpu7/online Normal file
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@ -0,0 +1 @@
0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu0 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu0

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu1 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu1

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu2 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu2

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu3 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu3

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu4 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu4

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu5 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu5

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu6 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu6

1
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/cpu7 Symbolic link
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@ -0,0 +1 @@
../../cpu/cpu7

29
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/node0/meminfo Normal file
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@ -0,0 +1,29 @@
Node 0 MemTotal: 8379620 kB
Node 0 MemFree: 2971308 kB
Node 0 MemUsed: 5408312 kB
Node 0 Active: 3795016 kB
Node 0 Inactive: 869528 kB
Node 0 Active(anon): 3081132 kB
Node 0 Inactive(anon): 13352 kB
Node 0 Active(file): 713884 kB
Node 0 Inactive(file): 856176 kB
Node 0 Unevictable: 48324 kB
Node 0 Mlocked: 13580 kB
Node 0 Dirty: 84 kB
Node 0 Writeback: 0 kB
Node 0 FilePages: 1585776 kB
Node 0 Mapped: 134048 kB
Node 0 AnonPages: 866116 kB
Node 0 Shmem: 13512 kB
Node 0 KernelStack: 3904 kB
Node 0 PageTables: 40664 kB
Node 0 NFS_Unstable: 0 kB
Node 0 Bounce: 0 kB
Node 0 WritebackTmp: 0 kB
Node 0 Slab: 244404 kB
Node 0 SReclaimable: 161784 kB
Node 0 SUnreclaim: 82620 kB
Node 0 HugePages_Total: 0
Node 0 HugePages_Free: 0
Node 0 HugePages_Surp: 0

BIN
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/online Normal file
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BIN
tests/nodeinfodata/linux-nodeinfo-sysfs-test-6/node/possible Normal file
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1
tests/nodeinfotest.c
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@ -130,6 +130,7 @@ mymain(void)
"nodeinfo-sysfs-test-3",
"nodeinfo-sysfs-test-4",
"nodeinfo-sysfs-test-5",
"nodeinfo-sysfs-test-6",
# endif
};