3:18 a.m.
From: Guan Qiang <hzguanqiang(a)corp.netease.com>
This adds per-device iops and bps throttle to <blkiotune>. By
extending the existed 'domainSetBlkioParameters' interface,
read/write iops and bps throttle for per-device can be set
with blkio cgroup. The blkiotune xml entry is now looked like:
<domain ...>
<blkiotune>
<device>
<path>/path/to/block</path>
<weight>1000</weight>
<read_bps>100000</read_bps>
<write_bps>100000</write_bps>
<read_iops>100000</read_iops>
<write_iops>1000000</write_iops>
</device>
</blkiotune>
..
Elments
<weight>,<read_bps>,<write_bps>,<read_iops>,<write_iops>
are all optional, but must have one.
---
docs/formatdomain.html.in | 8 +
docs/schemas/domaincommon.rng | 28 +-
include/libvirt/libvirt.h.in | 40 ++
src/conf/domain_conf.c | 115 +++-
src/conf/domain_conf.h | 16 +-
src/libvirt_private.syms | 4 +-
src/lxc/lxc_cgroup.c | 9 +-
src/qemu/qemu_cgroup.c | 10 +-
src/qemu/qemu_driver.c | 579 ++++++++++++++++++--
src/util/vircgroup.c | 79 ++-
src/util/vircgroup.h | 8 +-
.../qemuxml2argv-blkiotune-device.xml | 4 +
12 files changed, 789 insertions(+), 111 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 8ad755b..a14c298 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -753,10 +753,18 @@
<device>
<path>/dev/sda</path>
<weight>1000</weight>
+ <read_bps>2000</read_bps>
+ <write_bps>3000</write_bps>
+ <read_iops>4000</read_iops>
+ <write_iops>5000</write_iops>
</device>
<device>
<path>/dev/sdb</path>
<weight>500</weight>
+ <read_bps>2000</read_bps>
+ <write_bps>3000</write_bps>
+ <read_iops>4000</read_iops>
+ <write_iops>5000</write_iops>
</device>
</blkiotune>
...
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 14b6700..273b94a 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -621,9 +621,31 @@
<element name="path">
<ref name="absFilePath"/>
</element>
- <element name="weight">
- <ref name="weight"/>
- </element>
+ <optional>
+ <element name="weight">
+ <ref name="weight"/>
+ </element>
+ </optional>
+ <optional>
+ <element name="read_bps">
+ <data type="unsignedLong"/>
+ </element>
+ </optional>
+ <optional>
+ <element name="write_bps">
+ <data type="unsignedLong"/>
+ </element>
+ </optional>
+ <optional>
+ <element name="read_iops">
+ <data type="unsignedLong"/>
+ </element>
+ </optional>
+ <optional>
+ <element name="write_iops">
+ <data type="unsignedLong"/>
+ </element>
+ </optional>
</interleave>
</element>
</zeroOrMore>
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 2802a46..869a3e0 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -1790,6 +1790,46 @@ char * virDomainGetSchedulerType(virDomainPtr
domain,
#define VIR_DOMAIN_BLKIO_DEVICE_WEIGHT "device_weight"
+/**
+ * VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS:
+ *
+ * Macro for the BLKIO tunable throttle.read_bps_device: it represents the read
+ * bytes per second permitted through a block device, as a string.
+ * The string is parsed as a series of /path/to/device,read_bps elements,
+ * separated by ',', with element read_bps as a ullong.
+ */
+#define VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS "device_read_bps"
+
+/**
+ * VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS:
+ *
+ * Macro for the BLKIO tunable throttle.write_bps_device: it represents the write
+ * bytes per second permitted through a block device, as a string.
+ * The string is parsed as a series of /path/to/device,write_bps elements,
+ * separated by ',', with element write_bps as a ullong.
+ */
+#define VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS "device_write_bps"
+
+/**
+ * VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS:
+ *
+ * Macro for the BLKIO tunable throttle.read_iops_device: it represents the read
+ * I/O operations per second permitted through a block device, as a string.
+ * The string is parsed as a series of /path/to/device,read_iops elements,
+ * separated by ',', with element read_iops as a ullong.
+ */
+#define VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS "device_read_iops"
+
+/**
+ * VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS:
+ *
+ * Macro for the BLKIO tunable throttle.write_iops_device: it represents the write
+ * I/O operations per second permitted through a block device, as a string.
+ * The string is parsed as a series of /path/to/device,write_iops elements,
+ * separated by ',', with element write_iops as a ullong.
+ */
+#define VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS "device_write_iops"
+
/* Set Blkio tunables for the domain*/
int virDomainSetBlkioParameters(virDomainPtr domain,
virTypedParameterPtr params,
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 562d98b..b72baac 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -881,47 +881,100 @@ virDomainXMLOptionGetNamespace(virDomainXMLOptionPtr xmlopt)
void
-virBlkioDeviceWeightArrayClear(virBlkioDeviceWeightPtr deviceWeights,
+virBlkioDeviceIoTuneInfoArrayClear(virBlkioDeviceIoTuneInfoPtr devices,
int ndevices)
{
size_t i;
for (i = 0; i < ndevices; i++)
- VIR_FREE(deviceWeights[i].path);
+ VIR_FREE(devices[i].path);
}
/**
- * virDomainBlkioDeviceWeightParseXML
+ * virDomainBlkioDeviceIoTuneInfoParseXML
*
* this function parses a XML node:
*
* <device>
* <path>/fully/qualified/device/path</path>
* <weight>weight</weight>
+ * <read_bps>read_bps</read_bps>
+ * <write_bps>write_bps</write_bps>
+ * <read_iops>read_iops</read_iops>
+ * <write_iops>write_iops</write_iops>
* </device>
*
- * and fills a virBlkioDeviceWeight struct.
+ * and fills a virBlkioDeviceIoTuneInfo struct.
*/
static int
-virDomainBlkioDeviceWeightParseXML(xmlNodePtr root,
- virBlkioDeviceWeightPtr dw)
+virDomainBlkioDeviceIoTuneInfoParseXML(xmlNodePtr root,
+ virBlkioDeviceIoTuneInfoPtr dio)
{
char *c;
xmlNodePtr node;
+ dio->read_bps = 0;
+ dio->write_bps = 0;
+ dio->read_iops = 0;
+ dio->write_iops = 0;
+
node = root->children;
while (node) {
if (node->type == XML_ELEMENT_NODE) {
- if (xmlStrEqual(node->name, BAD_CAST "path") &&
!dw->path) {
- dw->path = (char *)xmlNodeGetContent(node);
+ if (xmlStrEqual(node->name, BAD_CAST "path") &&
!dio->path) {
+ dio->path = (char *)xmlNodeGetContent(node);
} else if (xmlStrEqual(node->name, BAD_CAST "weight")) {
c = (char *)xmlNodeGetContent(node);
- if (virStrToLong_ui(c, NULL, 10, &dw->weight) < 0) {
+ if (virStrToLong_ui(c, NULL, 10, &dio->weight) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("could not parse weight %s"),
c);
VIR_FREE(c);
- VIR_FREE(dw->path);
+ VIR_FREE(dio->path);
+ return -1;
+ }
+ VIR_FREE(c);
+ } else if (xmlStrEqual(node->name, BAD_CAST "read_bps")) {
+ c = (char *)xmlNodeGetContent(node);
+ if (virStrToLong_ull(c, NULL, 10, &dio->read_bps) < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("could not parse read_bps %s"),
+ c);
+ VIR_FREE(c);
+ VIR_FREE(dio->path);
+ return -1;
+ }
+ VIR_FREE(c);
+ } else if (xmlStrEqual(node->name, BAD_CAST "write_bps")) {
+ c = (char *)xmlNodeGetContent(node);
+ if (virStrToLong_ull(c, NULL, 10, &dio->write_bps) < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("could not parse write_bps %s"),
+ c);
+ VIR_FREE(c);
+ VIR_FREE(dio->path);
+ return -1;
+ }
+ VIR_FREE(c);
+ } else if (xmlStrEqual(node->name, BAD_CAST "read_iops")) {
+ c = (char *)xmlNodeGetContent(node);
+ if (virStrToLong_ull(c, NULL, 10, &dio->read_iops) < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("could not parse read_iops %s"),
+ c);
+ VIR_FREE(c);
+ VIR_FREE(dio->path);
+ return -1;
+ }
+ VIR_FREE(c);
+ } else if (xmlStrEqual(node->name, BAD_CAST "write_iops")) {
+ c = (char *)xmlNodeGetContent(node);
+ if (virStrToLong_ull(c, NULL, 10, &dio->write_iops) < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("could not parse write_iops %s"),
+ c);
+ VIR_FREE(c);
+ VIR_FREE(dio->path);
return -1;
}
VIR_FREE(c);
@@ -929,7 +982,7 @@ virDomainBlkioDeviceWeightParseXML(xmlNodePtr root,
}
node = node->next;
}
- if (!dw->path) {
+ if (!dio->path) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("missing per-device path"));
return -1;
@@ -1989,8 +2042,8 @@ void virDomainDefFree(virDomainDefPtr def)
VIR_FREE(def->description);
VIR_FREE(def->title);
- virBlkioDeviceWeightArrayClear(def->blkio.devices,
- def->blkio.ndevices);
+ virBlkioDeviceIoTuneInfoArrayClear(def->blkio.devices,
+ def->blkio.ndevices);
VIR_FREE(def->blkio.devices);
virDomainWatchdogDefFree(def->watchdog);
@@ -11000,15 +11053,15 @@ virDomainDefParseXML(xmlDocPtr xml,
for (i = 0; i < n; i++) {
size_t j;
- if (virDomainBlkioDeviceWeightParseXML(nodes[i],
- &def->blkio.devices[i]) < 0)
+ if (virDomainBlkioDeviceIoTuneInfoParseXML(nodes[i],
+ &def->blkio.devices[i]) <
0)
goto error;
def->blkio.ndevices++;
for (j = 0; j < i; j++) {
if (STREQ(def->blkio.devices[j].path,
def->blkio.devices[i].path)) {
virReportError(VIR_ERR_XML_ERROR,
- _("duplicate device weight path '%s'"),
+ _("duplicate blkio device path '%s'"),
def->blkio.devices[i].path);
goto error;
}
@@ -16451,7 +16504,9 @@ virDomainDefFormatInternal(virDomainDefPtr def,
blkio = true;
} else {
for (n = 0; n < def->blkio.ndevices; n++) {
- if (def->blkio.devices[n].weight) {
+ if (def->blkio.devices[n].weight || def->blkio.devices[n].read_bps ||
+ def->blkio.devices[n].write_bps || def->blkio.devices[n].read_iops
||
+ def->blkio.devices[n].write_iops) {
blkio = true;
break;
}
@@ -16466,13 +16521,33 @@ virDomainDefFormatInternal(virDomainDefPtr def,
def->blkio.weight);
for (n = 0; n < def->blkio.ndevices; n++) {
- if (def->blkio.devices[n].weight == 0)
+ if (def->blkio.devices[n].weight == 0 &&
def->blkio.devices[n].read_bps == 0 &&
+ def->blkio.devices[n].write_bps == 0 &&
def->blkio.devices[n].read_iops == 0 &&
+ def->blkio.devices[n].write_iops == 0)
continue;
virBufferAddLit(buf, " <device>\n");
virBufferEscapeString(buf, " <path>%s</path>\n",
def->blkio.devices[n].path);
- virBufferAsprintf(buf, " <weight>%u</weight>\n",
- def->blkio.devices[n].weight);
+ if (def->blkio.devices[n].weight) {
+ virBufferAsprintf(buf, "
<weight>%u</weight>\n",
+ def->blkio.devices[n].weight);
+ }
+ if (def->blkio.devices[n].read_bps) {
+ virBufferAsprintf(buf, "
<read_bps>%llu</read_bps>\n",
+ def->blkio.devices[n].read_bps);
+ }
+ if (def->blkio.devices[n].write_bps) {
+ virBufferAsprintf(buf, "
<write_bps>%llu</write_bps>\n",
+ def->blkio.devices[n].write_bps);
+ }
+ if (def->blkio.devices[n].read_iops) {
+ virBufferAsprintf(buf, "
<read_iops>%llu</read_iops>\n",
+ def->blkio.devices[n].read_iops);
+ }
+ if (def->blkio.devices[n].write_iops) {
+ virBufferAsprintf(buf, "
<write_iops>%llu</write_iops>\n",
+ def->blkio.devices[n].write_iops);
+ }
virBufferAddLit(buf, " </device>\n");
}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 4520ae4..23d9df8 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1858,11 +1858,15 @@ virDomainVcpuPinDefPtr
virDomainVcpuPinFindByVcpu(virDomainVcpuPinDefPtr *def,
int nvcpupin,
int vcpu);
-typedef struct _virBlkioDeviceWeight virBlkioDeviceWeight;
-typedef virBlkioDeviceWeight *virBlkioDeviceWeightPtr;
-struct _virBlkioDeviceWeight {
+typedef struct _virBlkioDeviceIoTuneInfo virBlkioDeviceIoTuneInfo;
+typedef virBlkioDeviceIoTuneInfo *virBlkioDeviceIoTuneInfoPtr;
+struct _virBlkioDeviceIoTuneInfo {
char *path;
unsigned int weight;
+ unsigned long long read_bps;
+ unsigned long long write_bps;
+ unsigned long long read_iops;
+ unsigned long long write_iops;
};
enum virDomainRNGModel {
@@ -1909,8 +1913,8 @@ struct _virDomainIdMapDef {
};
-void virBlkioDeviceWeightArrayClear(virBlkioDeviceWeightPtr deviceWeights,
- int ndevices);
+void virBlkioDeviceIoTuneInfoArrayClear(virBlkioDeviceIoTuneInfoPtr devices,
+ int ndevices);
typedef struct _virDomainResourceDef virDomainResourceDef;
typedef virDomainResourceDef *virDomainResourceDefPtr;
@@ -1938,7 +1942,7 @@ struct _virDomainDef {
unsigned int weight;
size_t ndevices;
- virBlkioDeviceWeightPtr devices;
+ virBlkioDeviceIoTuneInfoPtr devices;
} blkio;
struct {
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index f1f817c..0a1409f 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -103,7 +103,7 @@ virDomainAuditVcpu;
# conf/domain_conf.h
-virBlkioDeviceWeightArrayClear;
+virBlkioDeviceIoTuneInfoArrayClear;
virDiskNameToBusDeviceIndex;
virDiskNameToIndex;
virDomainActualNetDefFree;
@@ -1014,7 +1014,7 @@ virCgroupNewVcpu;
virCgroupPathOfController;
virCgroupRemove;
virCgroupRemoveRecursively;
-virCgroupSetBlkioDeviceWeight;
+virCgroupSetBlkioDeviceIoTune;
virCgroupSetBlkioWeight;
virCgroupSetCpuCfsPeriod;
virCgroupSetCpuCfsQuota;
diff --git a/src/lxc/lxc_cgroup.c b/src/lxc/lxc_cgroup.c
index 275e250..a284e69 100644
--- a/src/lxc/lxc_cgroup.c
+++ b/src/lxc/lxc_cgroup.c
@@ -112,10 +112,13 @@ static int virLXCCgroupSetupBlkioTune(virDomainDefPtr def,
if (def->blkio.ndevices) {
for (i = 0; i < def->blkio.ndevices; i++) {
- virBlkioDeviceWeightPtr dw = &def->blkio.devices[i];
- if (!dw->weight)
+ virBlkioDeviceIoTuneInfoPtr dio = &def->blkio.devices[i];
+ if (!dio->weight)
continue;
- if (virCgroupSetBlkioDeviceWeight(cgroup, dw->path, dw->weight) <
0)
+ if (virCgroupSetBlkioDeviceIoTune(cgroup,
+ dio->path, dio->weight,
+ dio->read_bps, dio->write_bps,
+ dio->read_iops, dio->write_iops) <
0)
return -1;
}
}
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index ace7e35..a146b8c 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -399,11 +399,13 @@ qemuSetupBlkioCgroup(virDomainObjPtr vm)
if (vm->def->blkio.ndevices) {
for (i = 0; i < vm->def->blkio.ndevices; i++) {
- virBlkioDeviceWeightPtr dw = &vm->def->blkio.devices[i];
- if (!dw->weight)
+ virBlkioDeviceIoTuneInfoPtr dio = &vm->def->blkio.devices[i];
+ if (!dio->weight)
continue;
- if (virCgroupSetBlkioDeviceWeight(priv->cgroup, dw->path,
- dw->weight) < 0)
+ if (virCgroupSetBlkioDeviceIoTune(priv->cgroup,
+ dio->path, dio->weight,
+ dio->read_bps, dio->write_bps,
+ dio->read_iops, dio->write_iops) <
0)
return -1;
}
}
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index c613967..026223a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -131,7 +131,7 @@
# define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */
#endif
-#define QEMU_NB_BLKIO_PARAM 2
+#define QEMU_NB_BLKIO_PARAM 6
#define QEMU_NB_BANDWIDTH_PARAM 6
@@ -7412,26 +7412,26 @@ cleanup:
return ret;
}
-/* deviceWeightStr in the form of /device/path,weight,/device/path,weight
+/* deviceIoTuneStr in the form of /device/path,ioTuneValue,/device/path,ioTuneValue or
* for example, /dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0,800
+ * deviceIoTuneFiled represents the ioTune type to tune, including device weight,
+ * device read bps, device write bps, device read iops and device write iops.
*/
static int
-qemuDomainParseDeviceWeightStr(char *deviceWeightStr,
- virBlkioDeviceWeightPtr *dw, size_t *size)
+qemuDomainParseDeviceIoTuneInfoStr(char *deviceIoTuneStr,
+ const char *deviceIoTuneFiled,
+ virBlkioDeviceIoTuneInfoPtr *dio, size_t *size)
{
char *temp;
int ndevices = 0;
int nsep = 0;
- size_t i;
- virBlkioDeviceWeightPtr result = NULL;
-
- *dw = NULL;
- *size = 0;
+ size_t i, j, k;
+ virBlkioDeviceIoTuneInfoPtr result = NULL;
- if (STREQ(deviceWeightStr, ""))
+ if (STREQ(deviceIoTuneStr, ""))
return 0;
- temp = deviceWeightStr;
+ temp = deviceIoTuneStr;
while (temp) {
temp = strchr(temp, ',');
if (temp) {
@@ -7450,8 +7450,11 @@ qemuDomainParseDeviceWeightStr(char *deviceWeightStr,
if (VIR_ALLOC_N(result, ndevices) < 0)
return -1;
+ for (i = 0; i < ndevices; i++)
+ memset(&result[i], 0, sizeof(result[i]));
+
i = 0;
- temp = deviceWeightStr;
+ temp = deviceIoTuneStr;
while (temp) {
char *p = temp;
@@ -7463,11 +7466,25 @@ qemuDomainParseDeviceWeightStr(char *deviceWeightStr,
if (VIR_STRNDUP(result[i].path, temp, p - temp) < 0)
goto cleanup;
- /* weight */
+ /* device ioTune value */
temp = p + 1;
- if (virStrToLong_ui(temp, &p, 10, &result[i].weight) < 0)
- goto error;
+ if (STREQ(deviceIoTuneFiled, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT)) {
+ if (virStrToLong_ui(temp, &p, 10, &result[i].weight) < 0)
+ goto error;
+ } else if (STREQ(deviceIoTuneFiled, VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS))
{
+ if (virStrToLong_ull(temp, &p, 10, &result[i].read_bps) < 0)
+ goto error;
+ } else if (STREQ(deviceIoTuneFiled, VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS))
{
+ if (virStrToLong_ull(temp, &p, 10, &result[i].write_bps) < 0)
+ goto error;
+ } else if (STREQ(deviceIoTuneFiled, VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS))
{
+ if (virStrToLong_ull(temp, &p, 10, &result[i].read_iops) < 0)
+ goto error;
+ } else if (STREQ(deviceIoTuneFiled, VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS))
{
+ if (virStrToLong_ull(temp, &p, 10, &result[i].write_iops) < 0)
+ goto error;
+ }
i++;
@@ -7481,30 +7498,68 @@ qemuDomainParseDeviceWeightStr(char *deviceWeightStr,
if (!i)
VIR_FREE(result);
- *dw = result;
- *size = i;
+ for (j = 0; j < i; j++) {
+ bool found = false;
+ virBlkioDeviceIoTuneInfoPtr old, new;
+
+ new = &result[j];
+ for (k = 0; k < *size; k++) {
+ old = &(*dio)[k];
+ if (STREQ(new->path, old->path)) {
+ found = true;
+ if (STREQ(deviceIoTuneFiled, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT))
+ old->weight = new->weight;
+ else if (STREQ(deviceIoTuneFiled,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS))
+ old->read_bps = new->read_bps;
+ else if (STREQ(deviceIoTuneFiled,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS))
+ old->write_bps = new->write_bps;
+ else if (STREQ(deviceIoTuneFiled,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS))
+ old->read_iops = new->read_iops;
+ else if (STREQ(deviceIoTuneFiled,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS))
+ old->write_iops = new->write_iops;
+ break;
+ }
+ }
+ if (!found) {
+ if (!new->weight && !new->read_bps &&
!new->write_bps &&
+ !new->read_iops && !new->write_iops)
+ continue;
+ if (VIR_EXPAND_N(*dio, *size, 1) < 0)
+ goto cleanup;
+ old = &(*dio)[*size -1];
+ if (VIR_STRDUP(old->path, new->path) < 0)
+ goto cleanup;
+ old->weight = new->weight;
+ old->read_bps = new->read_bps;
+ old->write_bps = new->write_bps;
+ old->read_iops = new->read_iops;
+ old->write_iops = new->write_iops;
+ }
+ }
+ virBlkioDeviceIoTuneInfoArrayClear(result, ndevices);
+ VIR_FREE(result);
return 0;
error:
virReportError(VIR_ERR_INVALID_ARG,
- _("unable to parse device weight '%s'"),
deviceWeightStr);
+ _("unable to parse device ioTune '%s'"),
deviceIoTuneStr);
cleanup:
- virBlkioDeviceWeightArrayClear(result, ndevices);
+ virBlkioDeviceIoTuneInfoArrayClear(result, ndevices);
VIR_FREE(result);
return -1;
}
-/* Modify dest_array to reflect all device weight changes described in
+/* Modify dest_array to reflect all device Iotune info changes described in
* src_array. */
static int
-qemuDomainMergeDeviceWeights(virBlkioDeviceWeightPtr *dest_array,
- size_t *dest_size,
- virBlkioDeviceWeightPtr src_array,
- size_t src_size)
+qemuDomainMergeDeviceIoTuneInfos(virBlkioDeviceIoTuneInfoPtr *dest_array,
+ size_t *dest_size,
+ virBlkioDeviceIoTuneInfoPtr src_array,
+ size_t src_size)
{
size_t i, j;
- virBlkioDeviceWeightPtr dest, src;
+ virBlkioDeviceIoTuneInfoPtr dest, src;
for (i = 0; i < src_size; i++) {
bool found = false;
@@ -7515,18 +7570,27 @@ qemuDomainMergeDeviceWeights(virBlkioDeviceWeightPtr *dest_array,
if (STREQ(src->path, dest->path)) {
found = true;
dest->weight = src->weight;
+ dest->read_bps = src->read_bps;
+ dest->write_bps = src->write_bps;
+ dest->read_iops = src->read_iops;
+ dest->write_iops = src->write_iops;
break;
}
}
if (!found) {
- if (!src->weight)
+ if (!src->weight && !src->read_bps &&
!src->write_bps &&
+ !src->read_iops && !src->write_iops)
continue;
if (VIR_EXPAND_N(*dest_array, *dest_size, 1) < 0)
return -1;
dest = &(*dest_array)[*dest_size - 1];
- dest->path = src->path;
+ if (VIR_STRDUP(dest->path, src->path) < 0)
+ return -1;
dest->weight = src->weight;
- src->path = NULL;
+ dest->read_bps = src->read_bps;
+ dest->write_bps = src->write_bps;
+ dest->read_iops = src->read_iops;
+ dest->write_iops = src->write_iops;
}
}
@@ -7555,6 +7619,14 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
VIR_TYPED_PARAM_STRING,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS,
+ VIR_TYPED_PARAM_STRING,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS,
+ VIR_TYPED_PARAM_STRING,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS,
+ VIR_TYPED_PARAM_STRING,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS,
+ VIR_TYPED_PARAM_STRING,
NULL) < 0)
return -1;
@@ -7586,44 +7658,114 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = ¶ms[i];
+ size_t ndevices = 0;
+ virBlkioDeviceIoTuneInfoPtr devices = NULL;
+ size_t j;
+
+ if (qemuDomainMergeDeviceIoTuneInfos(&devices, &ndevices,
+ vm->def->blkio.devices,
+ vm->def->blkio.ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
if (STREQ(param->field, VIR_DOMAIN_BLKIO_WEIGHT)) {
if (params[i].value.ui > 1000 || params[i].value.ui < 100) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("out of blkio weight range."));
ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
continue;
}
if (virCgroupSetBlkioWeight(priv->cgroup, params[i].value.ui) < 0)
ret = -1;
} else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT)) {
- size_t ndevices;
- virBlkioDeviceWeightPtr devices = NULL;
- size_t j;
-
- if (qemuDomainParseDeviceWeightStr(params[i].value.s,
- &devices,
- &ndevices) < 0) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+ VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
+ &devices,
+ &ndevices) < 0) {
ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
continue;
}
- for (j = 0; j < ndevices; j++) {
- if (virCgroupSetBlkioDeviceWeight(priv->cgroup,
- devices[j].path,
- devices[j].weight) < 0) {
- ret = -1;
- break;
+ } else if (STREQ(param->field,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS)) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
}
+ continue;
}
- if (j != ndevices ||
- qemuDomainMergeDeviceWeights(&vm->def->blkio.devices,
- &vm->def->blkio.ndevices,
- devices, ndevices) < 0)
+ } else if (STREQ(param->field,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS)) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
+ } else if (STREQ(param->field, VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS))
{
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
+ } else if (STREQ(param->field,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS)) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
+ }
+
+ for (j = 0; j < ndevices; j++) {
+ if (virCgroupSetBlkioDeviceIoTune(priv->cgroup,
+ devices[j].path, devices[j].weight,
+ devices[j].read_bps,
devices[j].write_bps,
+ devices[j].read_iops,
devices[j].write_iops) < 0) {
ret = -1;
- virBlkioDeviceWeightArrayClear(devices, ndevices);
- VIR_FREE(devices);
+ break;
+ }
}
+ if (j != ndevices ||
+ qemuDomainMergeDeviceIoTuneInfos(&vm->def->blkio.devices,
+ &vm->def->blkio.ndevices,
+ devices, ndevices) < 0)
+ ret = -1;
+
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
}
}
if (ret < 0)
@@ -7634,33 +7776,102 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = ¶ms[i];
+ virBlkioDeviceIoTuneInfoPtr devices = NULL;
+ size_t ndevices = 0;
+
+ if (qemuDomainMergeDeviceIoTuneInfos(&devices, &ndevices,
+ persistentDef->blkio.devices,
+ persistentDef->blkio.ndevices) <
0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
if (STREQ(param->field, VIR_DOMAIN_BLKIO_WEIGHT)) {
if (params[i].value.ui > 1000 || params[i].value.ui < 100) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("out of blkio weight range."));
ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
continue;
}
persistentDef->blkio.weight = params[i].value.ui;
} else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT)) {
- virBlkioDeviceWeightPtr devices = NULL;
- size_t ndevices;
-
- if (qemuDomainParseDeviceWeightStr(params[i].value.s,
- &devices,
- &ndevices) < 0) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+ VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
+ &devices,
+ &ndevices) < 0) {
ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
continue;
}
- if (qemuDomainMergeDeviceWeights(&persistentDef->blkio.devices,
- &persistentDef->blkio.ndevices,
- devices, ndevices) < 0)
+ } else if (STREQ(param->field,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS)) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS,
+ &devices,
+ &ndevices) < 0) {
ret = -1;
- virBlkioDeviceWeightArrayClear(devices, ndevices);
- VIR_FREE(devices);
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
+ } else if (STREQ(param->field,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS)) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
+ } else if (STREQ(param->field, VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS))
{
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
+ } else if (STREQ(param->field,
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS)) {
+ if (qemuDomainParseDeviceIoTuneInfoStr(params[i].value.s,
+
VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS,
+ &devices,
+ &ndevices) < 0) {
+ ret = -1;
+ if (ndevices) {
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
+ }
+ continue;
+ }
}
+
+ if (qemuDomainMergeDeviceIoTuneInfos(&persistentDef->blkio.devices,
+ &persistentDef->blkio.ndevices,
+ devices, ndevices) < 0)
+ ret = -1;
+
+ virBlkioDeviceIoTuneInfoArrayClear(devices, ndevices);
+ VIR_FREE(devices);
}
if (virDomainSaveConfig(cfg->configDir, persistentDef) < 0)
@@ -7771,6 +7982,122 @@ qemuDomainGetBlkioParameters(virDomainPtr dom,
goto cleanup;
break;
+ case 2: /* blkiotune.throttle.device_read_bps */
+ if (vm->def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < vm->def->blkio.ndevices; j++) {
+ if (!vm->def->blkio.devices[j].read_bps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ vm->def->blkio.devices[j].path,
+ vm->def->blkio.devices[j].read_bps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 3: /* blkiotune.throttle.device_write_bps */
+ if (vm->def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < vm->def->blkio.ndevices; j++) {
+ if (!vm->def->blkio.devices[j].write_bps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ vm->def->blkio.devices[j].path,
+ vm->def->blkio.devices[j].write_bps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 4: /* blkiotune.throttle.device_read_iops */
+ if (vm->def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < vm->def->blkio.ndevices; j++) {
+ if (!vm->def->blkio.devices[j].read_iops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ vm->def->blkio.devices[j].path,
+ vm->def->blkio.devices[j].read_iops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 5: /* blkiotune.throttle.device_write_iops */
+ if (vm->def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < vm->def->blkio.ndevices; j++) {
+ if (!vm->def->blkio.devices[j].write_iops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ vm->def->blkio.devices[j].path,
+ vm->def->blkio.devices[j].write_iops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
default:
break;
/* should not hit here */
@@ -7828,6 +8155,142 @@ qemuDomainGetBlkioParameters(virDomainPtr dom,
}
break;
+ case 2: /* blkiotune.device_read_bps */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].read_bps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].read_bps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s,
"") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS) == NULL)
{
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_BPS);
+ goto cleanup;
+ }
+ break;
+
+ case 3: /* blkiotune.device_write_bps */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].write_bps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].write_bps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s,
"") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS) == NULL)
{
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_BPS);
+ goto cleanup;
+ }
+ break;
+
+ case 4: /* blkiotune.device_read_iops */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].read_iops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].read_iops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s,
"") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS) == NULL)
{
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_READ_IOPS);
+ goto cleanup;
+ }
+ break;
+
+ case 5: /* blkiotune.device_write_iops */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].write_iops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ persistentDef->blkio.devices[j].path,
+
persistentDef->blkio.devices[j].write_iops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s,
"") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS) == NULL)
{
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_THROTTLE_DEVICE_WRITE_IOPS);
+ goto cleanup;
+ }
+ break;
+
default:
break;
/* should not hit here */
diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index 5c43e10..70954de 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -1826,24 +1826,37 @@ virCgroupGetBlkioWeight(virCgroupPtr group, unsigned int *weight)
/**
- * virCgroupSetBlkioDeviceWeight:
+ * virCgroupSetBlkioDeviceIoTune:
*
- * @group: The cgroup to change io device weight device for
+ * @group: The cgroup to change io device iotune device for
* @path: The device with a weight to alter
* @weight: The new device weight (100-1000),
* (10-1000) after kernel 2.6.39, or 0 to clear
+ * @read_bps: The new read bps throttle, or 0 to clear
+ * @write_bps: The new write bps throttle, or 0 to clear
+ * @read_iops: The new read iops throttle, or 0 to clear
+ * @write_iops: The new write iops throttle, or 0 to clear
*
- * device_weight is treated as a write-only parameter, so
- * there isn't a getter counterpart.
+ * paramters like device_weight, device_read_bps, device_write_bps,
+ * device_read_iops and device_write_iops are treated as write-only,
+ * so there isn't a getter counterpart.
*
* Returns: 0 on success, -1 on error
*/
int
-virCgroupSetBlkioDeviceWeight(virCgroupPtr group,
+virCgroupSetBlkioDeviceIoTune(virCgroupPtr group,
const char *path,
- unsigned int weight)
-{
- char *str;
+ unsigned int weight,
+ unsigned long long read_bps,
+ unsigned long long write_bps,
+ unsigned long long read_iops,
+ unsigned long long write_iops)
+{
+ char *weight_str;
+ char *read_bps_str;
+ char *write_bps_str;
+ char *read_iops_str;
+ char *write_iops_str;
struct stat sb;
int ret;
@@ -1861,15 +1874,51 @@ virCgroupSetBlkioDeviceWeight(virCgroupPtr group,
return -1;
}
- if (virAsprintf(&str, "%d:%d %d", major(sb.st_rdev),
minor(sb.st_rdev),
+ if (virAsprintf(&weight_str, "%d:%d %d", major(sb.st_rdev),
minor(sb.st_rdev),
weight) < 0)
return -1;
+ if (virAsprintf(&read_bps_str, "%d:%d %llu", major(sb.st_rdev),
minor(sb.st_rdev),
+ read_bps) < 0)
+ return -1;
+
+ if (virAsprintf(&write_bps_str, "%d:%d %llu", major(sb.st_rdev),
minor(sb.st_rdev),
+ write_bps) < 0)
+ return -1;
+
+ if (virAsprintf(&read_iops_str, "%d:%d %llu", major(sb.st_rdev),
minor(sb.st_rdev),
+ read_iops) < 0)
+ return -1;
+
+ if (virAsprintf(&write_iops_str, "%d:%d %llu", major(sb.st_rdev),
minor(sb.st_rdev),
+ write_iops) < 0)
+ return -1;
+
ret = virCgroupSetValueStr(group,
VIR_CGROUP_CONTROLLER_BLKIO,
"blkio.weight_device",
- str);
- VIR_FREE(str);
+ weight_str);
+ ret = virCgroupSetValueStr(group,
+ VIR_CGROUP_CONTROLLER_BLKIO,
+ "blkio.throttle.read_bps_device",
+ read_bps_str);
+ ret = virCgroupSetValueStr(group,
+ VIR_CGROUP_CONTROLLER_BLKIO,
+ "blkio.throttle.write_bps_device",
+ write_bps_str);
+ ret = virCgroupSetValueStr(group,
+ VIR_CGROUP_CONTROLLER_BLKIO,
+ "blkio.throttle.read_iops_device",
+ read_iops_str);
+ ret = virCgroupSetValueStr(group,
+ VIR_CGROUP_CONTROLLER_BLKIO,
+ "blkio.throttle.write_iops_device",
+ write_iops_str);
+ VIR_FREE(weight_str);
+ VIR_FREE(read_bps_str);
+ VIR_FREE(write_bps_str);
+ VIR_FREE(read_iops_str);
+ VIR_FREE(write_iops_str);
return ret;
}
@@ -3282,9 +3331,13 @@ virCgroupGetBlkioWeight(virCgroupPtr group ATTRIBUTE_UNUSED,
int
-virCgroupSetBlkioDeviceWeight(virCgroupPtr group ATTRIBUTE_UNUSED,
+virCgroupSetBlkioDeviceIoTune(virCgroupPtr group ATTRIBUTE_UNUSED,
const char *path ATTRIBUTE_UNUSED,
- unsigned int weight ATTRIBUTE_UNUSED)
+ unsigned int weight ATTRIBUTE_UNUSED,
+ unsigned long long read_bps ATTRIBUTE_UNUSED,
+ unsigned long long write_bps ATTRIBUTE_UNUSED,
+ unsigned long long read_iops ATTRIBUTE_UNUSED,
+ unsigned long long write_iops ATTRIBUTE_UNUSED)
{
virReportSystemError(ENOSYS, "%s",
_("Control groups not supported on this platform"));
diff --git a/src/util/vircgroup.h b/src/util/vircgroup.h
index 835eb30..21980da 100644
--- a/src/util/vircgroup.h
+++ b/src/util/vircgroup.h
@@ -122,9 +122,13 @@ int virCgroupMoveTask(virCgroupPtr src_group,
int virCgroupSetBlkioWeight(virCgroupPtr group, unsigned int weight);
int virCgroupGetBlkioWeight(virCgroupPtr group, unsigned int *weight);
-int virCgroupSetBlkioDeviceWeight(virCgroupPtr group,
+int virCgroupSetBlkioDeviceIoTune(virCgroupPtr group,
const char *path,
- unsigned int weight);
+ unsigned int weight,
+ unsigned long long read_bps,
+ unsigned long long write_bps,
+ unsigned long long read_iops,
+ unsigned long long write_iops);
int virCgroupSetMemory(virCgroupPtr group, unsigned long long kb);
int virCgroupGetMemoryUsage(virCgroupPtr group, unsigned long *kb);
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-blkiotune-device.xml
b/tests/qemuxml2argvdata/qemuxml2argv-blkiotune-device.xml
index 743cf29..9d8ced8 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-blkiotune-device.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-blkiotune-device.xml
@@ -8,6 +8,10 @@
<device>
<path>/dev/sda</path>
<weight>400</weight>
+ <read_bps>100000</read_bps>
+ <write_bps>100000</write_bps>
+ <read_iops>100000</read_iops>
+ <write_iops>1000000</write_iops>
</device>
<device>
<path>/dev/sdb</path>
--
1.7.9.5