Solaris Operating System Performance Counters

Solaris is a Unix-based operating system developed by Sun Microsystems and now owned by Oracle. It is designed for use on SPARC, x86, and IA-64 architectures. Solaris is used as a server operating system in many large enterprise environments and cloud computing solutions. It provides a wide range of features, including virtualization, clustering, high availability, scalability, and security. Solaris is also well-known for its reliability and robustness. Solaris is often used as a development platform as well, with support for languages such as Java, C, C++, and Python.

Performance Counters of Solaris Operating System

System

  1. CPU User: Time spent running non-kernel code (user time, including nice time). Percentage of total CPU time.
  2. CPU System: Time spent running kernel code (system time). Percentage of total CPU time.
  3. CPU Idle: CPU idle time. Breakdown of percentage usage of CPU time.
  4. Interruptions Count: The number of interrupts per second, including the clock.
  5. Context Switch Count: The number of context switches per second.
  6. Context Switch Count per CPU: Number of context switches per second per CPU.
  7. Processes Runnable: The number of processes waiting for run time.
  8. Processes Runnable per CPU: The number of processes waiting for run time per CPU.
  9. Processes Sleeping: The number of processes in uninterrupted sleep.
  10. Processes Swapped: The number of processes swapped out but otherwise runnable. This field is calculated; however, Linux never desperation swaps.

Memory

  1. Swap Space Available: Amount of swap space currently available (Kbytes).
  2. Free List Size: Size of the free list (Kbytes).
  3. Page Reclaims Per Second: Report information about page faults: page reclaims per second.Minor
  4. Faults Per Second: Report information about page faults: minor faults.
  5. Paged In Per Second: Kilobytes paged in per second.
  6. Paged Out Per Second: Kilobytes paged out per second.
  7. Freed Per Second: Kilobytes freed per second.
  8. Anticipated Short-term Memory Shortfall: Anticipated short-term memory shortfall (Kbytes) per second.
  9. Pages Scanned by Clock Algorithm: Pages scanned by clock algorithm per second.

Disk (per device)

  1. Disk Read: The number of read requests merged per second issued to the device.
  2. Disk Write: The number of write requests merged per second issued to the device.
  3. Disk Read (KB): The number of Kilobytes read per second.
  4. Disk Write (KB): The number of Kilobytes written per second.
  5. Transaction waiting for service: Average number of transactions waiting for service (queue length).
  6. Average number of transaction: Average number of transactions actively being serviced (removed from the queue but not yet completed).
  7. Average response time: Average response time of transactions, in milliseconds (the time that transactions are in the queue and the time that transactions are being serviced)
  8. Percent time waiting: Percent of the time there are transactions waiting for service (queue non-empty).
  9. Percent time busy: Percent of time the disk is busy (transactions in progress).

Processes

The processes section counters are available per process. Select the process identifier in the counter definition pane. A process identifier picker is available using the selection button.

  1. Process Memory Usage: Resident size (kb). The non-swapped physical memory a task has used.
  2. Process CPU Time: The task share of the elapsed CPU time since the last update, expressed as a percentage of total CPU time.

Network (per interface)

The network section counters are available per interface. Outside the wizard, select the interface name in the counter definition pane. A network interface picker is available through the Populate button.

  1. Incoming bytes/s: The number of bytes received by the network interface per second.
  2. Incoming packets/s: The number of packets received by the network interface per second.
  3. Incoming packet errors/s: The number of broken packets received by the network interface per second.
  4. % Incoming packet errors: Percentage of broken packets received by the network interface (% Incoming packet errors = Incoming packet errors / Incoming packets *100).
  5. Outgoing bytes/s: The number of bytes issued by the network interface per second.
  6. Outgoing packets/s: The number of packets issued by the network interface per second.
  7. Outgoing packets errors/s: The number of broken packets issued by the network interface per second.
  8. % Outgoing packet errors: Percentage of packets issued by the network interface and considered broken (% Outgoing packet errors = Outgoing packet errors / Outgoing packets *100).
  9. Packet collisions: The number of packet collisions discovered by the network interface.

TCP

  1. Incoming segments/s: The number of TCP segments received per second.
  2. Segments completely duplicated/s: The number of duplicated segments received per second. A segment is duplicated when it is received many times after one or more retransmissions.
  3. % Segments duplicated: Percentage of duplicated segments received (% Segments duplicated = Segments completely duplicated / Incoming segments * 100).
  4. Outgoing segments/s: The number of TCP segments transmitted per second.
  5. Segments retransmitted/s: The number of TCP segments retransmitted per second.
  6. % Segments retransmitted: Percentage of retransmitted segments (% Segments retransmitted = Segments retransmitted / Outgoing segments *100).
  7. Retransmit timeouts: The number of timeout triggers for segment retransmissions.

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