mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-24 06:35:24 +00:00
Implement domainGetCPUStats for lxc driver.
This commit is contained in:
parent
65158899b7
commit
4b3b2f6ceb
@ -1032,6 +1032,7 @@ virCgroupGetMemorySoftLimit;
|
|||||||
virCgroupGetMemoryUsage;
|
virCgroupGetMemoryUsage;
|
||||||
virCgroupGetMemSwapHardLimit;
|
virCgroupGetMemSwapHardLimit;
|
||||||
virCgroupGetMemSwapUsage;
|
virCgroupGetMemSwapUsage;
|
||||||
|
virCgroupGetPercpuStats;
|
||||||
virCgroupHasController;
|
virCgroupHasController;
|
||||||
virCgroupIsolateMount;
|
virCgroupIsolateMount;
|
||||||
virCgroupKill;
|
virCgroupKill;
|
||||||
|
@ -77,6 +77,7 @@
|
|||||||
|
|
||||||
#define LXC_NB_MEM_PARAM 3
|
#define LXC_NB_MEM_PARAM 3
|
||||||
|
|
||||||
|
|
||||||
static int lxcStateInitialize(bool privileged,
|
static int lxcStateInitialize(bool privileged,
|
||||||
virStateInhibitCallback callback,
|
virStateInhibitCallback callback,
|
||||||
void *opaque);
|
void *opaque);
|
||||||
@ -5420,6 +5421,53 @@ cleanup:
|
|||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int
|
||||||
|
lxcDomainGetCPUStats(virDomainPtr dom,
|
||||||
|
virTypedParameterPtr params,
|
||||||
|
unsigned int nparams,
|
||||||
|
int start_cpu,
|
||||||
|
unsigned int ncpus,
|
||||||
|
unsigned int flags)
|
||||||
|
{
|
||||||
|
virDomainObjPtr vm = NULL;
|
||||||
|
int ret = -1;
|
||||||
|
virLXCDomainObjPrivatePtr priv;
|
||||||
|
|
||||||
|
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
|
||||||
|
|
||||||
|
if (!(vm = lxcDomObjFromDomain(dom)))
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
priv = vm->privateData;
|
||||||
|
|
||||||
|
if (virDomainGetCPUStatsEnsureACL(dom->conn, vm->def) < 0)
|
||||||
|
goto cleanup;
|
||||||
|
|
||||||
|
if (!virDomainObjIsActive(vm)) {
|
||||||
|
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
|
||||||
|
_("domain is not running"));
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUACCT)) {
|
||||||
|
virReportError(VIR_ERR_OPERATION_INVALID,
|
||||||
|
"%s", _("cgroup CPUACCT controller is not mounted"));
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (start_cpu == -1)
|
||||||
|
ret = virCgroupGetDomainTotalCpuStats(priv->cgroup,
|
||||||
|
params, nparams);
|
||||||
|
else
|
||||||
|
ret = virCgroupGetPercpuStats(priv->cgroup, params,
|
||||||
|
nparams, start_cpu, ncpus);
|
||||||
|
cleanup:
|
||||||
|
if (vm)
|
||||||
|
virObjectUnlock(vm);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
/* Function Tables */
|
/* Function Tables */
|
||||||
static virDriver lxcDriver = {
|
static virDriver lxcDriver = {
|
||||||
.no = VIR_DRV_LXC,
|
.no = VIR_DRV_LXC,
|
||||||
@ -5499,6 +5547,7 @@ static virDriver lxcDriver = {
|
|||||||
.nodeSuspendForDuration = lxcNodeSuspendForDuration, /* 0.9.8 */
|
.nodeSuspendForDuration = lxcNodeSuspendForDuration, /* 0.9.8 */
|
||||||
.domainSetMetadata = lxcDomainSetMetadata, /* 1.1.3 */
|
.domainSetMetadata = lxcDomainSetMetadata, /* 1.1.3 */
|
||||||
.domainGetMetadata = lxcDomainGetMetadata, /* 1.1.3 */
|
.domainGetMetadata = lxcDomainGetMetadata, /* 1.1.3 */
|
||||||
|
.domainGetCPUStats = lxcDomainGetCPUStats, /* 1.2.2 */
|
||||||
.nodeGetMemoryParameters = lxcNodeGetMemoryParameters, /* 0.10.2 */
|
.nodeGetMemoryParameters = lxcNodeGetMemoryParameters, /* 0.10.2 */
|
||||||
.nodeSetMemoryParameters = lxcNodeSetMemoryParameters, /* 0.10.2 */
|
.nodeSetMemoryParameters = lxcNodeSetMemoryParameters, /* 0.10.2 */
|
||||||
.domainSendProcessSignal = lxcDomainSendProcessSignal, /* 1.0.1 */
|
.domainSendProcessSignal = lxcDomainSendProcessSignal, /* 1.0.1 */
|
||||||
|
@ -53,11 +53,14 @@
|
|||||||
#include "virsystemd.h"
|
#include "virsystemd.h"
|
||||||
#include "virtypedparam.h"
|
#include "virtypedparam.h"
|
||||||
|
|
||||||
|
#include "nodeinfo.h"
|
||||||
|
|
||||||
#define CGROUP_MAX_VAL 512
|
#define CGROUP_MAX_VAL 512
|
||||||
|
|
||||||
#define VIR_FROM_THIS VIR_FROM_CGROUP
|
#define VIR_FROM_THIS VIR_FROM_CGROUP
|
||||||
|
|
||||||
#define CGROUP_NB_TOTAL_CPU_STAT_PARAM 3
|
#define CGROUP_NB_TOTAL_CPU_STAT_PARAM 3
|
||||||
|
#define CGROUP_NB_PER_CPU_STAT_PARAM 1
|
||||||
|
|
||||||
#if defined(__linux__) && defined(HAVE_GETMNTENT_R) && \
|
#if defined(__linux__) && defined(HAVE_GETMNTENT_R) && \
|
||||||
defined(_DIRENT_HAVE_D_TYPE) && defined(_SC_CLK_TCK)
|
defined(_DIRENT_HAVE_D_TYPE) && defined(_SC_CLK_TCK)
|
||||||
@ -2824,6 +2827,78 @@ virCgroupDenyDevicePath(virCgroupPtr group, const char *path, int perms)
|
|||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int
|
||||||
|
virCgroupGetPercpuStats(virCgroupPtr group,
|
||||||
|
virTypedParameterPtr params,
|
||||||
|
unsigned int nparams,
|
||||||
|
int start_cpu,
|
||||||
|
unsigned int ncpus)
|
||||||
|
{
|
||||||
|
int rv = -1;
|
||||||
|
size_t i;
|
||||||
|
int id, max_id;
|
||||||
|
char *pos;
|
||||||
|
char *buf = NULL;
|
||||||
|
virTypedParameterPtr ent;
|
||||||
|
int param_idx;
|
||||||
|
unsigned long long cpu_time;
|
||||||
|
|
||||||
|
/* return the number of supported params */
|
||||||
|
if (nparams == 0 && ncpus != 0)
|
||||||
|
return CGROUP_NB_PER_CPU_STAT_PARAM;
|
||||||
|
|
||||||
|
/* To parse account file, we need to know how many cpus are present. */
|
||||||
|
max_id = nodeGetCPUCount();
|
||||||
|
if (max_id < 0)
|
||||||
|
return rv;
|
||||||
|
|
||||||
|
if (ncpus == 0) { /* returns max cpu ID */
|
||||||
|
rv = max_id;
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (start_cpu > max_id) {
|
||||||
|
virReportError(VIR_ERR_INVALID_ARG,
|
||||||
|
_("start_cpu %d larger than maximum of %d"),
|
||||||
|
start_cpu, max_id);
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* we get percpu cputime accounting info. */
|
||||||
|
if (virCgroupGetCpuacctPercpuUsage(group, &buf))
|
||||||
|
goto cleanup;
|
||||||
|
pos = buf;
|
||||||
|
|
||||||
|
/* return percpu cputime in index 0 */
|
||||||
|
param_idx = 0;
|
||||||
|
|
||||||
|
/* number of cpus to compute */
|
||||||
|
if (start_cpu >= max_id - ncpus)
|
||||||
|
id = max_id - 1;
|
||||||
|
else
|
||||||
|
id = start_cpu + ncpus - 1;
|
||||||
|
|
||||||
|
for (i = 0; i <= id; i++) {
|
||||||
|
if (virStrToLong_ull(pos, &pos, 10, &cpu_time) < 0) {
|
||||||
|
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
||||||
|
_("cpuacct parse error"));
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
if (i < start_cpu)
|
||||||
|
continue;
|
||||||
|
ent = ¶ms[(i - start_cpu) * nparams + param_idx];
|
||||||
|
if (virTypedParameterAssign(ent, VIR_DOMAIN_CPU_STATS_CPUTIME,
|
||||||
|
VIR_TYPED_PARAM_ULLONG, cpu_time) < 0)
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
|
||||||
|
rv = nparams;
|
||||||
|
|
||||||
|
cleanup:
|
||||||
|
VIR_FREE(buf);
|
||||||
|
return rv;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
int
|
int
|
||||||
virCgroupGetDomainTotalCpuStats(virCgroupPtr group,
|
virCgroupGetDomainTotalCpuStats(virCgroupPtr group,
|
||||||
|
@ -201,6 +201,13 @@ int virCgroupDenyDevicePath(virCgroupPtr group,
|
|||||||
const char *path,
|
const char *path,
|
||||||
int perms);
|
int perms);
|
||||||
|
|
||||||
|
int
|
||||||
|
virCgroupGetPercpuStats(virCgroupPtr group,
|
||||||
|
virTypedParameterPtr params,
|
||||||
|
unsigned int nparams,
|
||||||
|
int start_cpu,
|
||||||
|
unsigned int ncpus);
|
||||||
|
|
||||||
int
|
int
|
||||||
virCgroupGetDomainTotalCpuStats(virCgroupPtr group,
|
virCgroupGetDomainTotalCpuStats(virCgroupPtr group,
|
||||||
virTypedParameterPtr params,
|
virTypedParameterPtr params,
|
||||||
|
Loading…
Reference in New Issue
Block a user