[libvirt] [PATCH v2 6/6] lxc: Introduce method lxcDomainGetBalloonStats
This method is responsible to fetch all Balloon Memory Stats and store
data into virDomainStatsRecordPtr structure. It contains kernel memory
used by current container.
Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com>
---
src/lxc/lxc_driver.c | 65 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index a83837077d..286b5609ee 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -2897,6 +2897,68 @@ lxcDomainGetBlkioParameters(virDomainPtr dom,
}
+static int
+lxcDomainGetStatsMemory(virDomainObjPtr dom,
+ virDomainStatsRecordPtr record,
+ int *maxparams,
+ unsigned int supported)
+{
+ virLXCDomainObjPrivatePtr priv = dom->privateData;
+ unsigned long long swap_usage;
+ unsigned long long kmem_usage;
+ unsigned long mem_usage;
+ unsigned int flags = VIR_DOMAIN_STATS_BALLOON;
+
+ virCheckFlags(supported, 0);
+
+ if (virDomainObjCheckActive(dom) < 0)
+ return 0;
+
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.current",
+ dom->def->mem.cur_balloon) < 0)
+ return -1;
+
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.maximum",
+ virDomainDefGetMemoryTotal(dom->def)) < 0)
+ return -1;
+
+ if (virCgroupGetMemoryUsage(priv->cgroup, &mem_usage) >= 0) {
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.rss",
+ mem_usage) < 0)
+ return -1;
+ }
+
+ if (virCgroupGetKMemUsage(priv->cgroup, &kmem_usage) >= 0) {
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.kmem",
+ kmem_usage) < 0)
+ return -1;
+ }
+
+ if (virCgroupGetMemSwapUsage(priv->cgroup, &swap_usage) >= 0) {
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.swap_in",
+ swap_usage) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+
static int
lxcDomainInterfaceStats(virDomainPtr dom,
const char *device,
@@ -5500,6 +5562,9 @@ lxcDomainGetStats(virConnectPtr conn,
if (lxcDomainGetStatsBlock(dom, stat, &maxparams, flags) < 0)
goto endjob;
+ if (lxcDomainGetStatsMemory(dom, stat, &maxparams, flags) < 0)
+ goto endjob;
+
virLXCDomainObjEndJob(driver, dom);
return stat;
--
2.19.1