提交 585ad00b 编写于 作者: J John Ferlan

docs: Adjust formatting for virConnectGetAllDomainStats output

Adjust the spacing a bit in order to generate 'cleaner' looking output.
This matches what virDomainMemoryStats does and it creates text/code boxes
in order to list each of the stats for each category.
上级 55bddd5e
......@@ -11108,111 +11108,127 @@ virConnectGetDomainCapabilities(virConnectPtr conn,
* binary-OR of enum virDomainStatsTypes. The following groups are available
* (although not necessarily implemented for each hypervisor):
*
* VIR_DOMAIN_STATS_STATE: Return domain state and reason for entering that
* state. The typed parameter keys are in this format:
* "state.state" - state of the VM, returned as int from virDomainState enum
* "state.reason" - reason for entering given state, returned as int from
* virDomain*Reason enum corresponding to given state.
*
* VIR_DOMAIN_STATS_CPU_TOTAL: Return CPU statistics and usage information.
* The typed parameter keys are in this format:
* "cpu.time" - total cpu time spent for this domain in nanoseconds
* as unsigned long long.
* "cpu.user" - user cpu time spent in nanoseconds as unsigned long long.
* "cpu.system" - system cpu time spent in nanoseconds as unsigned long long.
*
* VIR_DOMAIN_STATS_BALLOON: Return memory balloon device information.
* The typed parameter keys are in this format:
* "balloon.current" - the memory in kiB currently used
* as unsigned long long.
* "balloon.maximum" - the maximum memory in kiB allowed
* as unsigned long long.
*
* VIR_DOMAIN_STATS_VCPU: Return virtual CPU statistics.
* Due to VCPU hotplug, the vcpu.<num>.* array could be sparse.
* The actual size of the array corresponds to "vcpu.current".
* The array size will never exceed "vcpu.maximum".
* The typed parameter keys are in this format:
* "vcpu.current" - current number of online virtual CPUs as unsigned int.
* "vcpu.maximum" - maximum number of online virtual CPUs as unsigned int.
* "vcpu.<num>.state" - state of the virtual CPU <num>, as int
* from virVcpuState enum.
* "vcpu.<num>.time" - virtual cpu time spent by virtual CPU <num>
* as unsigned long long.
*
* VIR_DOMAIN_STATS_INTERFACE: Return network interface statistics.
* The typed parameter keys are in this format:
* "net.count" - number of network interfaces on this domain
* as unsigned int.
* "net.<num>.name" - name of the interface <num> as string.
* "net.<num>.rx.bytes" - bytes received as unsigned long long.
* "net.<num>.rx.pkts" - packets received as unsigned long long.
* "net.<num>.rx.errs" - receive errors as unsigned long long.
* "net.<num>.rx.drop" - receive packets dropped as unsigned long long.
* "net.<num>.tx.bytes" - bytes transmitted as unsigned long long.
* "net.<num>.tx.pkts" - packets transmitted as unsigned long long.
* "net.<num>.tx.errs" - transmission errors as unsigned long long.
* "net.<num>.tx.drop" - transmit packets dropped as unsigned long long.
*
* VIR_DOMAIN_STATS_BLOCK: Return block devices statistics. By default,
* this information is limited to the active layer of each <disk> of the
* domain (where block.count is equal to the number of disks), but adding
* VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING to @flags will expand the
* array to cover backing chains (block.count corresponds to the number
* of host resources used together to provide the guest disks).
* The typed parameter keys are in this format:
* "block.count" - number of block devices in the subsequent list,
* as unsigned int.
* "block.<num>.name" - name of the block device <num> as string.
* matches the target name (vda/sda/hda) of the
* block device. If the backing chain is listed,
* this name is the same for all host resources tied
* to the same guest device.
* "block.<num>.backingIndex" - unsigned int giving the <backingStore> index,
* only used when backing images are listed.
* "block.<num>.path" - string describing the source of block device <num>,
* if it is a file or block device (omitted for network
* sources and drives with no media inserted).
* "block.<num>.rd.reqs" - number of read requests as unsigned long long.
* "block.<num>.rd.bytes" - number of read bytes as unsigned long long.
* "block.<num>.rd.times" - total time (ns) spent on reads as
* unsigned long long.
* "block.<num>.wr.reqs" - number of write requests as unsigned long long.
* "block.<num>.wr.bytes" - number of written bytes as unsigned long long.
* "block.<num>.wr.times" - total time (ns) spent on writes as
* unsigned long long.
* "block.<num>.fl.reqs" - total flush requests as unsigned long long.
* "block.<num>.fl.times" - total time (ns) spent on cache flushing as
* unsigned long long.
* "block.<num>.errors" - Xen only: the 'oo_req' value as
* unsigned long long.
* "block.<num>.allocation" - offset of the highest written sector
* as unsigned long long.
* "block.<num>.capacity" - logical size in bytes of the block device backing
* image as unsigned long long.
* "block.<num>.physical" - physical size in bytes of the container of the
* backing image as unsigned long long.
*
* VIR_DOMAIN_STATS_PERF: Return perf event statistics.
* The typed parameter keys are in this format:
* "perf.cmt" - the usage of l3 cache (bytes) by applications running on the
* platform as unsigned long long. It is produced by cmt perf
* event.
* "perf.mbmt" - the total system bandwidth (bytes/s) from one level of cache
* to another as unsigned long long. It is produced by mbmt perf
* event.
* "perf.mbml" - the amount of data (bytes/s) sent through the memory controller
* on the socket as unsigned long long. It is produced by mbml
* perf event.
* "perf.cache_misses" - the count of cache misses as unsigned long long.
* VIR_DOMAIN_STATS_STATE:
* Return domain state and reason for entering that state. The typed
* parameter keys are in this format:
*
* "state.state" - state of the VM, returned as int from virDomainState enum
* "state.reason" - reason for entering given state, returned as int from
* virDomain*Reason enum corresponding to given state.
*
* VIR_DOMAIN_STATS_CPU_TOTAL:
* Return CPU statistics and usage information. The typed parameter keys
* are in this format:
*
* "cpu.time" - total cpu time spent for this domain in nanoseconds
* as unsigned long long.
* "cpu.user" - user cpu time spent in nanoseconds as unsigned long long.
* "cpu.system" - system cpu time spent in nanoseconds as unsigned long
* long.
*
* VIR_DOMAIN_STATS_BALLOON:
* Return memory balloon device information.
* The typed parameter keys are in this format:
*
* "balloon.current" - the memory in kiB currently used
* as unsigned long long.
* "balloon.maximum" - the maximum memory in kiB allowed
* as unsigned long long.
*
* VIR_DOMAIN_STATS_VCPU:
* Return virtual CPU statistics.
* Due to VCPU hotplug, the vcpu.<num>.* array could be sparse.
* The actual size of the array corresponds to "vcpu.current".
* The array size will never exceed "vcpu.maximum".
* The typed parameter keys are in this format:
*
* "vcpu.current" - current number of online virtual CPUs as unsigned int.
* "vcpu.maximum" - maximum number of online virtual CPUs as unsigned int.
* "vcpu.<num>.state" - state of the virtual CPU <num>, as int
* from virVcpuState enum.
* "vcpu.<num>.time" - virtual cpu time spent by virtual CPU <num>
* as unsigned long long.
*
* VIR_DOMAIN_STATS_INTERFACE:
* Return network interface statistics.
* The typed parameter keys are in this format:
*
* "net.count" - number of network interfaces on this domain
* as unsigned int.
* "net.<num>.name" - name of the interface <num> as string.
* "net.<num>.rx.bytes" - bytes received as unsigned long long.
* "net.<num>.rx.pkts" - packets received as unsigned long long.
* "net.<num>.rx.errs" - receive errors as unsigned long long.
* "net.<num>.rx.drop" - receive packets dropped as unsigned long long.
* "net.<num>.tx.bytes" - bytes transmitted as unsigned long long.
* "net.<num>.tx.pkts" - packets transmitted as unsigned long long.
* "net.<num>.tx.errs" - transmission errors as unsigned long long.
* "net.<num>.tx.drop" - transmit packets dropped as unsigned long long.
*
* VIR_DOMAIN_STATS_BLOCK:
* Return block devices statistics. By default,
* this information is limited to the active layer of each <disk> of the
* domain (where block.count is equal to the number of disks), but adding
* VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING to @flags will expand the
* array to cover backing chains (block.count corresponds to the number
* of host resources used together to provide the guest disks).
* The typed parameter keys are in this format:
*
* "block.count" - number of block devices in the subsequent list,
* as unsigned int.
* "block.<num>.name" - name of the block device <num> as string.
* matches the target name (vda/sda/hda) of the
* block device. If the backing chain is listed,
* this name is the same for all host resources tied
* to the same guest device.
* "block.<num>.backingIndex" - unsigned int giving the <backingStore>
* index, only used when backing images
* are listed.
* "block.<num>.path" - string describing the source of block device <num>,
* if it is a file or block device (omitted for network
* sources and drives with no media inserted).
* "block.<num>.rd.reqs" - number of read requests as unsigned long long.
* "block.<num>.rd.bytes" - number of read bytes as unsigned long long.
* "block.<num>.rd.times" - total time (ns) spent on reads as
* unsigned long long.
* "block.<num>.wr.reqs" - number of write requests as unsigned long long.
* "block.<num>.wr.bytes" - number of written bytes as unsigned long long.
* "block.<num>.wr.times" - total time (ns) spent on writes as
* unsigned long long.
* "block.<num>.fl.reqs" - total flush requests as unsigned long long.
* "block.<num>.fl.times" - total time (ns) spent on cache flushing as
* unsigned long long.
* "block.<num>.errors" - Xen only: the 'oo_req' value as
* unsigned long long.
* "block.<num>.allocation" - offset of the highest written sector
* as unsigned long long.
* "block.<num>.capacity" - logical size in bytes of the block device
* backing image as unsigned long long.
* "block.<num>.physical" - physical size in bytes of the container of the
* backing image as unsigned long long.
*
* VIR_DOMAIN_STATS_PERF:
* Return perf event statistics.
* The typed parameter keys are in this format:
*
* "perf.cmt" - the usage of l3 cache (bytes) by applications running on
* the platform as unsigned long long. It is produced by cmt
* perf event.
* "perf.mbmt" - the total system bandwidth (bytes/s) from one level of
* cache to another as unsigned long long. It is produced
* by mbmt perf event.
* "perf.mbml" - the amount of data (bytes/s) sent through the memory
* controller on the socket as unsigned long long. It is
* produced by mbml perf event.
* "perf.cache_misses" - the count of cache misses as unsigned long long.
* It is produced by cache_misses perf event.
* "perf.cache_references" - the count of cache hits as unsigned long long.
* It is produced by cache_references perf event.
* "perf.instructions" - The count of instructions as unsigned long long.
* "perf.cache_references" - the count of cache hits as unsigned long long.
* It is produced by cache_references perf event.
* "perf.instructions" - The count of instructions as unsigned long long.
* It is produced by instructions perf event.
* "perf.cpu_cycles" - The count of cpu cycles (total/elapsed) as an
* unsigned long long. It is produced by cpu_cycles
* perf event.
* "perf.cpu_cycles" - The count of cpu cycles (total/elapsed) as an
* unsigned long long. It is produced by cpu_cycles
* perf event.
*
* Note that entire stats groups or individual stat fields may be missing from
* the output in case they are not supported by the given hypervisor, are not
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