The HP-UX operating system is a server-based operating system developed and marketed by Hewlett-Packard (HP). It is a Unix-based operating system designed for the Hewlett-Packard 9000 series of servers. HP-UX is a robust, secure, and stable operating system that is widely used in corporate data centers. It is well suited for mission-critical applications, such as enterprise resource planning (ERP) systems, customer relationship management (CRM) systems, and data warehousing. HP-UX is also used for web and application servers, as well as for high-performance computing (HPC) clusters. It is optimized for HP’s server hardware and has advanced features such as system partitioning, high availability clustering, and secure networking. HP-UX is a reliable and secure platform for mission-critical applications, and its scalability ensures that it can meet the needs of any size organization.
Performance Counters of HP-UX Operating System
- CPU User: User time for normal and low-priority processes. Breakdown of percentage usage of CPU time.
- CPU System: Time spent running kernel code (system time). Percentage of total CPU time.
- CPU Idle: CPU idle time. Breakdown of percentage usage of CPU time.
- Interruptions Count: Device interrupts per second (non-clock).
- Context Switch Count: The number of context switches per second.
- Context Switch Count per CPU: Number of context switches per second per CPU.
- Processes Runnable: The number of processes waiting for run time.
- Processes Runnable per CPU: The number of processes waiting for run time per CPU.
- Processes Sleeping: The number of processes in uninterrupted sleep.
- Processes Swapped: The numbers of processes runnable or short sleeper (< 20 seconds) but swapped.
- Active virtual pages: Active virtual pages. Virtual pages are considered active if they have been accessed.
- Free List Size: Size of the free list.
- Pages Reclaims Per Second: Report information about page faults: page reclaims per second. (average each five second).
- Address translation faults: Report information about page faults: Address translation faults per second. (average each five second).
- Processes swapped in: Processes swapped in per second. (average each five second).
- Processes swapped out: Processes swapped out per second. (average each five second).
- Pages paged in: Pages paged in per second. (average each five second).
- Pages paged out: Pages paged out per second. (average each five second).
- Pages freed per second: Pages freed per second. (average each five second).
- Anticipated short term memory shortfall: Anticipated short-term memory shortfall. (average each five second).
- Pages scanned by clock algorithm. Pages scanned by clock algorithm per second. (average each five second).
Disk (per device)
- Kilobytes transferred per second: The number of kilobytes transferred per second.
- Seeks per second: The number of seeks per second.
- Millisecond per average seek: The number of milliseconds per average seek.
- Process CPU Time: The task share of the elapsed CPU time since the last update, expressed as a percentage of total CPU time.
- Process Memory Usage: Resident size (kb). The non-swapped physical memory a task has used.
Network (per interface)
- Incoming bytes/s: The number of bytes received by the network interface per second.
- Incoming packets/s: The number of packets received by the network interface per second.
- Incoming segments/s: The number of TCP segments received per second.
- 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.
- % Segments duplicated: Percentage of duplicated segments received (% Segments duplicated = Segments completely duplicated / Incoming segments * 100).
- Outgoing segments/s: The number of TCP segments transmitted per second.
- Segments retransmitted/s: The number of TCP segments retransmitted per second.
- % Segments retransmitted: Percentage of retransmitted segments (% Segments retransmitted = Segments retransmitted / Outgoing segments *100).
- Retransmit timeouts: The number of timeout triggers for segment retransmissions.
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