rails performance monitoring

Performance monitoring ToolsPerf KVMIn order to use Perf KVM in the host, you must access/Proc/modules and/proc/kallsyms file. "Copy/proc files from guest virtual machine to host" to transfer files to the host and run reports on the files.Attention:If you copy the required files directly (for example, using SCP), you will only copy the zero fileLength. This procedure describes how to first save the files in

disk space, as a memory space, used to store cached data files, called as cache files (Paging file), the path name is C \ Pagefile.sys, the default is hidden. The operating system transparently uses paging file to store data, and application is unable to control and perceive whether the data is stored in physical memory or in virtual memory, that is, the operating system decides to use physical memory, or paging file to store cached data. In general, monitor the use of memory resources at the W

In Web site performance optimization, we often have to check the various indicators of the server in order to quickly find the black sheep. In most cases, we use monitoring software such as cacti, Nagois, or Zabbix, but this kind of software is cumbersome to install, and in a small server we want to find out as quickly as possible, or use some of the commands that Linux provides. 1. Memory Check: free-m N

The simplest ASP. NET performance monitoring tool is the performance counter: Run, enter perfmon, you can open the system's built-in Performance Monitor, you can add performance counters. Performance object

indicates the number of requests that have been processed, waiting for the end of the timeout. Status: Descriptionclosed: No connection is activeListen: The server is waiting to enter the callSYN_RECV: A connection request has arrived, waiting for confirmationsyn_sent: Application has started, open a connectionestablished: Normal data transfer statusfin_wait1: Application says it's doneFin_wait2: The other side has agreed to releaseitmed_wait: Waiting for all packets to dieclosing: Both sid

For real-time monitoring Introduction: Learn why application monitoring is important in performance testing and how to use IBM Rational performance Tester for application monitoring. This article is part 2nd of a three-part series that describes how to use IBM Rational

backend, configuration-->hosts groups--> Click "Create Host Group"--Select Template tab, select Templates " Templateapp mysql,templdate OS Linux ", Last click on update　　2, building the hoststemplate is provided by Zabbix system, enter Zabbix Web background,configuration-->hosts--> Click on your host name--> select template selection tab, select Templates "Template App MySQL", then click on the "Add" button on the left, then click the "Update" button3, moni