libvirt/tests/nodeinfotest.c
Ján Tomko 5099f745e6 Add test for linuxNodeGetCPUStats
Check if cpu stats are read correctly from a sample
/proc/stat collected from a 24 CPU machine.
2014-01-27 11:04:02 +01:00

274 lines
6.6 KiB
C

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "testutils.h"
#include "internal.h"
#include "nodeinfopriv.h"
#include "virfile.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_NONE
#if ! (defined __linux__ && (defined(__x86_64__) || \
defined(__amd64__) || \
defined(__i386__) || \
defined(__powerpc__) || \
defined(__powerpc64__)))
int
main(void)
{
return EXIT_AM_SKIP;
}
#else
static int
linuxTestCompareFiles(const char *cpuinfofile,
char *sysfs_dir,
const char *outputfile)
{
int ret = -1;
char *actualData = NULL;
char *expectData = NULL;
virNodeInfo nodeinfo;
FILE *cpuinfo;
if (virtTestLoadFile(outputfile, &expectData) < 0)
goto fail;
cpuinfo = fopen(cpuinfofile, "r");
if (!cpuinfo)
goto fail;
memset(&nodeinfo, 0, sizeof(nodeinfo));
if (linuxNodeInfoCPUPopulate(cpuinfo, sysfs_dir, &nodeinfo) < 0) {
if (virTestGetDebug()) {
virErrorPtr error = virSaveLastError();
if (error && error->code != VIR_ERR_OK)
fprintf(stderr, "\n%s\n", error->message);
virFreeError(error);
}
VIR_FORCE_FCLOSE(cpuinfo);
goto fail;
}
VIR_FORCE_FCLOSE(cpuinfo);
if (virAsprintf(&actualData,
"CPUs: %u/%u, MHz: %u, Nodes: %u, Sockets: %u, "
"Cores: %u, Threads: %u\n",
nodeinfo.cpus, VIR_NODEINFO_MAXCPUS(nodeinfo),
nodeinfo.mhz, nodeinfo.nodes, nodeinfo.sockets,
nodeinfo.cores, nodeinfo.threads) < 0)
goto fail;
if (STRNEQ(actualData, expectData)) {
virtTestDifference(stderr, expectData, actualData);
goto fail;
}
ret = 0;
fail:
VIR_FREE(expectData);
VIR_FREE(actualData);
return ret;
}
# define TICK_TO_NSEC (1000ull * 1000ull * 1000ull / sysconf(_SC_CLK_TCK))
static int
linuxCPUStatsToBuf(virBufferPtr buf,
int cpu,
virNodeCPUStatsPtr param,
size_t nparams)
{
size_t i = 0;
if (cpu < 0)
virBufferAddLit(buf, "cpu:\n");
else
virBufferAsprintf(buf, "cpu%d:\n", cpu);
for (i = 0; i < nparams; i++)
virBufferAsprintf(buf, "%s: %llu\n", param[i].field,
param[i].value / TICK_TO_NSEC);
virBufferAddChar(buf, '\n');
return 0;
}
static int
linuxCPUStatsCompareFiles(const char *cpustatfile,
size_t ncpus,
const char *outfile)
{
int ret = -1;
char *actualData = NULL;
char *expectData = NULL;
FILE *cpustat = NULL;
virNodeCPUStatsPtr params = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
int nparams = 0;
if (virtTestLoadFile(outfile, &expectData) < 0)
goto fail;
if (!(cpustat = fopen(cpustatfile, "r"))) {
virReportSystemError(errno, "failed to open '%s': ", cpustatfile);
goto fail;
}
if (linuxNodeGetCPUStats(NULL, 0, NULL, &nparams) < 0)
goto fail;
if (VIR_ALLOC_N(params, nparams) < 0)
goto fail;
if (linuxNodeGetCPUStats(cpustat, VIR_NODE_CPU_STATS_ALL_CPUS, params,
&nparams) < 0)
goto fail;
if (linuxCPUStatsToBuf(&buf, VIR_NODE_CPU_STATS_ALL_CPUS,
params, nparams) < 0)
goto fail;
for (i = 0; i < ncpus; i++) {
if (linuxNodeGetCPUStats(cpustat, i, params, &nparams) < 0)
goto fail;
if (linuxCPUStatsToBuf(&buf, i, params, nparams) < 0)
goto fail;
}
if (!(actualData = virBufferContentAndReset(&buf))) {
virReportOOMError();
goto fail;
}
if (STRNEQ(actualData, expectData)) {
virtTestDifference(stderr, expectData, actualData);
goto fail;
}
ret = 0;
fail:
virBufferFreeAndReset(&buf);
VIR_FORCE_FCLOSE(cpustat);
VIR_FREE(expectData);
VIR_FREE(actualData);
VIR_FREE(params);
return ret;
}
static int
linuxTestNodeInfo(const void *data)
{
int result = -1;
char *cpuinfo = NULL;
char *sysfs_dir = NULL;
char *output = NULL;
const char *test = data;
const char *arch = "x86";
# if defined(__powerpc__) || \
defined(__powerpc64__)
arch = "ppc";
# endif
if (virAsprintf(&sysfs_dir, "%s/nodeinfodata/linux-%s",
abs_srcdir, test) < 0 ||
virAsprintf(&cpuinfo, "%s/nodeinfodata/linux-%s-%s.cpuinfo",
abs_srcdir, arch, test) < 0 ||
virAsprintf(&output, "%s/nodeinfodata/linux-%s-%s.expected",
abs_srcdir, arch, test) < 0) {
goto cleanup;
}
result = linuxTestCompareFiles(cpuinfo, sysfs_dir, output);
cleanup:
VIR_FREE(cpuinfo);
VIR_FREE(output);
VIR_FREE(sysfs_dir);
return result;
}
struct nodeCPUStatsData {
const char *name;
int ncpus;
};
static int
linuxTestNodeCPUStats(const void *data)
{
const struct nodeCPUStatsData *testData = data;
int result = -1;
char *cpustatfile = NULL;
char *outfile = NULL;
if (virAsprintf(&cpustatfile, "%s/nodeinfodata/linux-cpustat-%s.stat",
abs_srcdir, testData->name) < 0 ||
virAsprintf(&outfile, "%s/nodeinfodata/linux-cpustat-%s.out",
abs_srcdir, testData->name) < 0)
goto fail;
result = linuxCPUStatsCompareFiles(cpustatfile,
testData->ncpus,
outfile);
fail:
VIR_FREE(cpustatfile);
VIR_FREE(outfile);
return result;
}
static int
mymain(void)
{
int ret = 0;
size_t i;
const char *nodeData[] = {
"test1",
# if !(defined(__powerpc__) || \
defined(__powerpc64__))
"test2",
"test3",
"test4",
"test5",
"test6",
"test7",
"test8",
# endif
};
if (virInitialize() < 0)
return EXIT_FAILURE;
for (i = 0; i < ARRAY_CARDINALITY(nodeData); i++)
if (virtTestRun(nodeData[i], linuxTestNodeInfo, nodeData[i]) != 0)
ret = -1;
# define DO_TEST_CPU_STATS(name, ncpus) \
do { \
static struct nodeCPUStatsData data = { name, ncpus }; \
if (virtTestRun("CPU stats " name, linuxTestNodeCPUStats, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST_CPU_STATS("24cpu", 24);
return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
#endif /* __linux__ */