[libvirt] [PATCH v3 1/7] Add global period definitions
This parameter represents top level period cgroup
that limits whole domain enforcement period for a quota
Signed-off-by: Alexander Burluka <aburluka(a)virtuozzo.com>
---
docs/schemas/domaincommon.rng | 5 +++++
include/libvirt/libvirt-domain.h | 16 ++++++++++++++++
src/conf/domain_conf.c | 18 ++++++++++++++++++
src/conf/domain_conf.h | 1 +
4 files changed, 40 insertions(+)
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 5deb17b..aa7eae9 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -670,6 +670,11 @@
</element>
</optional>
<optional>
+ <element name="global_period">
+ <ref name="cpuperiod"/>
+ </element>
+ </optional>
+ <optional>
<element name="period">
<ref name="cpuperiod"/>
</element>
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index d26faa5..cb30313 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -312,6 +312,14 @@ typedef enum {
# define VIR_DOMAIN_SCHEDULER_CPU_SHARES "cpu_shares"
/**
+ * VIR_DOMAIN_SCHEDULER_GLOBAL_PERIOD:
+ *
+ * Macro represents the enforcement period for a quota, in microseconds,
+ * for whole domain, when using the posix scheduler, as a ullong.
+ */
+# define VIR_DOMAIN_SCHEDULER_GLOBAL_PERIOD "global_period"
+
+/**
* VIR_DOMAIN_SCHEDULER_VCPU_PERIOD:
*
* Macro represents the enforcement period for a quota, in microseconds,
@@ -3318,6 +3326,14 @@ typedef void
(*virConnectDomainEventDeviceAddedCallback)(virConnectPtr conn,
# define VIR_DOMAIN_TUNABLE_CPU_CPU_SHARES "cputune.cpu_shares"
/**
+ * VIR_DOMAIN_TUNABLE_CPU_GLOBAL_PERIOD:
+ *
+ * Macro represents the enforcement period for a quota, in microseconds,
+ * for whole domain, when using the posix scheduler, as VIR_TYPED_PARAM_ULLONG.
+ */
+# define VIR_DOMAIN_TUNABLE_CPU_GLOBAL_PERIOD "cputune.global_period"
+
+/**
* VIR_DOMAIN_TUNABLE_CPU_VCPU_PERIOD:
*
* Macro represents the enforcement period for a quota, in microseconds,
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a9706b0..5ee53c2 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -15059,6 +15059,21 @@ virDomainDefParseXML(xmlDocPtr xml,
goto error;
}
+ if (virXPathULongLong("string(./cputune/global_period[1])", ctxt,
+ &def->cputune.global_period) < -1) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("can't parse cputune global period value"));
+ goto error;
+ }
+
+ if (def->cputune.global_period > 0 &&
+ (def->cputune.global_period < 1000 || def->cputune.global_period >
1000000)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("Value of cputune global period must be in range "
+ "[1000, 1000000]"));
+ goto error;
+ }
+
if (virXPathULongLong("string(./cputune/emulator_period[1])", ctxt,
&def->cputune.emulator_period) < -1) {
virReportError(VIR_ERR_XML_ERROR, "%s",
@@ -21818,6 +21833,9 @@ virDomainDefFormatInternal(virDomainDefPtr def,
if (def->cputune.quota)
virBufferAsprintf(&childrenBuf,
"<quota>%lld</quota>\n",
def->cputune.quota);
+ if (def->cputune.global_period)
+ virBufferAsprintf(&childrenBuf,
"<global_period>%llu</global_period>\n",
+ def->cputune.global_period);
if (def->cputune.emulator_period)
virBufferAsprintf(&childrenBuf, "<emulator_period>%llu"
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 0141009..7c43e7d 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2135,6 +2135,7 @@ struct _virDomainCputune {
bool sharesSpecified;
unsigned long long period;
long long quota;
+ unsigned long long global_period;
unsigned long long emulator_period;
long long emulator_quota;
size_t nvcpupin;
--
1.8.3.1