postgres performance monitoring

After running the topas command: # Topas The most comprehensive and dynamic operating system, and the convenient performance view is the topas command. The following uses the topas output as an example to briefly describe the performance monitoring of the AIX system, for the reference of O M engineers and system administrators. In addition, 1. view the erro

When monitoring the internal performance of zabbix, we usually use the following metric to measure the service performance: Nvps, queue, update percent, process busy, pending sync data, cache.By adding corresponding monitoring, zabbix performance problems can be effectively

Before you start About this series Writing code for an application is just the first phase of a lengthy process required to deliver a robust product quality program. The code must be tested to verify its operation and accuracy. It is also often necessary to analyze the code to eliminate performance bottlenecks and resource waste (especially memory). Code must also be monitored to locate faults, identify usage patterns, look for opportunities for fur

the amount of memory that this process is actually consuming. The SHR identifies the memory and library sizes that can be shared with other processes.8, performance monitoring SAR commandSar-u output displays CPU information. The-u option is the default option for SAR. This output shows the CPU usage as a percentageCpuCPU number%userThe time it takes to run a process in user mode%niceThe time it took to ru

1. Performance Monitoring Introduction Performance optimization is the process of finding bottlenecks in the system and optimizing the operating system to eliminate these bottlenecks. Many system administrators think that performance tuning can be easily solved by reading cook book and setting some kernel parameters,

milliseconds) per device I/O operation. Delta (use)/delta (RIO+WIO) %util: CPU usage time per second for IO operations. That is, the amount of time in a second for I/O operations, or how much time in a second I/O queue is non-empty, calculation method: (r/s+w/s) * (svctm/1000) %util indicates how busy the disk is. 100% indicates that the disk is busy and 0% indicates that the disk is idle. Note, however, that disk busy does not represent high disk (bandwidth) utilization Can only reflect

= "Wkiom1aqfscsmpyjaahckpstn2a303.jpg"/>3, if the server opened iptables, need to release traffic[Email protected]/]# iptables-a input-i eth1-p udp-s 60.195.252.107--dport 161-j accept[[email protected]/]# IPTA Bles-a input-i eth1-p udp-s 60.195.252.110--dport 161-j ACCEPT4, you can also use the monitoring of the SNMP remote testing to test your SNMP service is availableVisit http://www.jiankongbao.com/labs/snmp650) this.width=650; "src=" http://s1.51

://github.com/nicolargo/glances/blob/master/docs/glances-doc.rstIf you want to store the data for use by other services, it can be saved as csv,html or saved in Influxdb and STATSD, or as a reference:Https://github.com/nicolargo/glances/blob/master/docs/glances-doc.rst#gateway-to-others-servicesIn general, this tool is very lightweight and very useful and will be integrated into my personal project.This project is using the LGPL protocol.Reference:Http://www.vpsee.com/2013/07/a-new-system-

chart icon content.Log on ServerAgent side:INFO 2016-02-18 11:02:14.197 [KG.APC.P] (): Accepting new TCP connectioninfo 2016-02-18 11:02:14.243 [KG.APC.P] (): Yep, we received the ' test ' commandinfo 2016-02-18 11:02:14.246 [KG.APC.P] (): Starting Measures:cpu:INFO client Disconnected b When the jmeter is running, the connection is then disconnected immediately and the data we want is not available. Conjecture requires a time-controlled component that enables it to acqu

507004 65.42 137400 150764View Memory usage $free-M--sh -h is humanized display S is the size of the recursive entire directory to view the sorted size of all folders under this directory for in do du-sh $i; | -sh ' ls 'integrated applications when SAR is not available in the system, the following tools can be used instead: Linux has vmstat, UNIX systems have Prstateg: View CPU, Memory, usage: vmstat N m (n is the monitoring frequency

configured Admin/admin, and all Web apps under Tomcat can be seen after successful login Select Probe.war, then click Deploy, and the app will be included in Tomcat's management scope: You can now enter the probe page (for example: Http://127.0.0.1:8080/probe, if you need a password, or admin/admin) Third, monitor Tomcat performance with probe 1. Monitor Application Status Tap into each app to see more detailed