Collecting additional metrics using the Azure Monitor agent
Microsoft Azure provides a set of guest OS metrics for Azure virtual machines. Guest OS metrics are not available by default. You can use the Azure Monitor agent to collect metrics of your guest virtual machines. The metrics are useful for investigating the capacity-related issues that might occur in your Azure environment. When you run the Microsoft Azure API ETL, these metrics are imported into Capacity Optimization.
- Install the Azure Monitor agent.
- Configure and run the ETL. For more information, see Microsoft Azure - Azure API Extractor.
- Verify that the metrics are displayed in the Workspace.
Performance metrics for Linux virtual machines
The following tables list the metrics that are available when the Azure Monitor agent is installed on your Linux virtual machines:
BMC Helix Continuous Optimization metric | Azure Metric | Formula |
|---|---|---|
| CPU_UTIL_GUEST | cpu/usage_active | (cpu/usage_active)/100 |
| CPU_UTIL_IDLE | cpu/usage_idle | (cpu/usage_idle)/100 |
| CPU_UTIL_USER | cpu/usage_user | (cpu/usage_user)/100 |
| CPU_UTIL_SYSTEM | cpu/usage_system | (cpu/usage_system)/100 |
| CPU_UTIL_WAIT | cpu/usage_iowait | (cpu/usage_iowait)/100 |
| MEM_FREE | mem/available | Not applicable |
| MEM_CONSUMED | mem/used | Not applicable |
| MEM_UTIL | mem/used_percent | (mem/used_percent)/100 |
| MEM_PAGE_RATE | kernel_vmstat/total_pages | (kernel_vmstat/total_pages)/period |
| MEM_PAGE_IN_RATE | kernel_vmstat/pgpgin | (kernel_vmstat/pgpgin)/period |
| MEM_PAGE_OUT_RATE | kernel_vmstat/pgpgout | (kernel_vmstat/pgpgout)/period |
| SWAP_SPACE_FREE | swap/free | Not applicable |
| SWAP_SPACE_USED | swap/used | Not applicable |
| SWAP_SPACE_UTIL | swap/used_percent | (swap/used_percent)/100 |
| DISK_IO_RATE_GUEST | diskio/total_transfers | (diskio/total_transfers)/period |
| DISK_IO_READ_RATE_GUEST | diskio/reads | (diskio/reads)/period |
| DISK_IO_WRITE_RATE_GUEST | diskio/writes | (diskio/writes)/period |
| DISK_TRANSFER_RATE_GUEST | diskio/total_bytes | (diskio/total_bytes)/period |
| DISK_WRITE_RATE_GUEST | diskio/write_bytes | (diskio/write_bytes)/period |
| NET_OUT_BYTE_RATE_GUEST | net/bytes_sent | (net/bytes_sent)/period |
| NET_IN_BYTE_RATE_GUEST | net/bytes_recv | (net/bytes_recv)/period |
| NET_BYTE_RATE_GUEST | net/bytes_total | (net/bytes_total)/period |
| NET_OUT_PKT_RATE | net/packets_sent | (net/packets_sent)/period |
| NET_IN_PKT_RATE | net/packets_recv | (net/packets_recv)/period |
| NET_PKT_RATE | net/packets_sent net/packets_recv | (net/packets_recv + net/packets_sent)/period |
| NET_IN_ERROR_RATE | net/err_in | (net/err_in)/period |
| NET_OUT_ERROR_RATE | net/err_out | (net/err_out)/period |
| NET_ERROR_RATE | net/drop_total | (net/drop_total)/period |
DISK_READ_RATE_GUEST | diskio/read_bytes | (diskio/read_bytes)/period |
| TOTAL_FS_UTIL | disk/used_percent | (disk/used_percent)/100 |
Performance metrics for Windows virtual machines
The following tables list the metrics that are available when the Azure Monitor agent is installed on your Windows virtual machines:
BMC Helix Continuous Optimization metric | Azure metric | Formula |
|---|---|---|
| CPU_UTIL_GUEST | \Processor(_Total)\% Processor Time | PERCENT_PROCESSOR_TIME/100 |
| CPU_UTIL_SYSTEM | \Processor(_Total)\% Privileged Time | PERCENT_PRIVILEGED_TIME/100 |
CPU_UTIL_USER | \Processor(_Total)\% User Time | PERCENT_USER_TIME/100 |
| MEM_VIRTUAL_USED_PCT | \Memory\% Committed Bytes In Use | PERCENT_COMMITTED_BYTES_IN_USE/100 |
| MEM_FREE | \Memory\Available Bytes | Not applicable |
| MEM_UTIL | \Memory\Available Bytes | (TOTAL_REAL_MEM - AVAILABLE_BYTES) /TOTAL_REAL_MEM |
| MEM_VIRTUAL_ACTIVE | \Memory\Committed Bytes | Not applicable |
| MEM_VIRTUAL_TOTAL1 | \Memory\Commit Limit | Not applicable |
| MEM_VIRTUAL_FREE | \Memory\Commit Limit - \Memory\Committed Bytes | COMMIT_LIMIT - COMMITTED_BYTES |
| MEM_CACHE_FAULTS1 | \Memory\Cache Faults/sec | Not applicable |
| MEM_PAGE_FAULT_RATE | \Memory\Page Faults/sec | Not applicable |
| MEM_PAGE_IN_RATE1 | \Memory\Page Reads/sec | Not applicable |
| MEM_PAGE_RATE | \Memory\Pages/sec | Not applicable |
| MEM_PAGE_OUT_RATE | Derived | PAGES_PER_SEC - PAGE_READS_PER_SEC |
| MEM_POOL_PAGED | \Memory\Pool Paged Bytes | Not applicable |
| MEM_NONPOOL_PAGED | \Memory\Pool Nonpaged Bytes | Not applicable |
| MEM_TRANSITION_FAULTS1 | \Memory\Transition Faults/sec | Not applicable |
| DISK_IO_RATE_GUEST1 | \PhysicalDisk\TransfersPerSecond | Not applicable |
| DISK_IO_READ_RATE_GUEST1 | \PhysicalDisk(_Total)\Disk Reads/sec | Not applicable |
| DISK_IO_WRITE_RATE_GUEST1 | \PhysicalDisk(_Total)\Disk Writes/sec | Not applicable |
| DISK_TRANSFER_RATE_GUEST1 | \PhysicalDisk(_Total)\Disk Bytes/sec | Not applicable |
| DISK_READ_RATE_GUEST1 | \PhysicalDisk(_Total)\Disk Read Bytes/sec | Not applicable |
| DISK_WRITE_RATE_GUEST1 | \PhysicalDisk(_Total)\Disk Write Bytes/sec | Not applicable |
| LDISK_FREE | \LogicalDisk(_Total)\Free Megabytes | FREE_MEGABYTES*1024*1024 |
| TOTAL_LDISK_USED | \LogicalDisk(_Total)\Free Megabytes | ((FREE_MEGABYTES*1024*1024)*100/ LDISK_PERCENT_FREE_SPACE)- (FREE_MEGABYTES*1024*1024) |
| TOTAL_LDISK_UTIL | \LogicalDisk(_Total)\% Free Space | (100-LDISK_PERCENT_FREE_SPACE)/100 |
1 - To view these metrics in BMC Helix Continuous Optimization, perform the following steps:
- Log in to the Azure portal.
- In the left pane, select Monitor.
- In the Settings tab, click Data Collection Rule.
A list of your data collection rules is displayed. - Select the data collection rule for which you want to get additional metrics.
- In the left pane of the Data Collection Rule, click Data sources.
- From the Data source type dropdown, select Performance counters.
- From Configure Performance Counters, choose the Custom option.
- Type the name of the performance counter, and click Add.
Repeat this step for each performance counter and then click Save.
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