measuring itil

SYN5605 multi-channel time interval measuring instrumentAt present, the time interval measurement method used at home and abroad has the direct counting method, the simulation interpolation method, the cursor method and so on. The direct counting method is generally used counter to count the input pulses from the time base, so that the opening time of the main gate equals the interval between the start pulse and the Stop pulse, so the number of pulses

Test tool Apache Ab/webbentchThe 1.Apache AB command simulates multi-threaded concurrent requests, tests server load pressures, and can also test the pressure of Nginx, Lighthttp, IIS and other Web servers. The AB command is very low on the computer that emits the load, does not consume a lot of CPU, and does not consume too much memory, but it can cause a huge load on the target server. AB is the most commonly used tool for measuring pressure.

For customers to develop a set of Keane TM-3000 measuring instrument supporting management system, good feedback. If anyone needs a custom development, you can contact me, [email protected]First introduce the Keyence company's TM-3000 laser measuring instrument, the official product homepage is: http://china.keyence.com/products/measure/micrometer/tm-3000/index.jspThis system product uses the transmission p

Original article address:Baking tips: kitchen scales and measuring spoons. Are you ready? Author:Junzhi On weekdays, my mom taught me how to cook and pay attention to how much oil, salt, soy sauce, and vinegar I feel. Therefore, even if the process steps are completely the same, they often have their own tastes. However, if you have experience, you may have a scale in your mind. But the West Point is different. Accurate weighing is the basic prereq

Http_load principle Analysis of web pressure measuring toolFirst, prefaceHttp_load is an open source tool for testing Web server performance and can be downloaded to the latest version of Http_load from the following URLs:http://www.acme.com/software/http_load/(the page is simply too shabby ...). ）Thankfully, the software has been kept up to date (unlike Webbench, which has been a relic of the past decade.) Webbench Source Code Analysis Please refer t

using the pressure measuring tool (ab/webbench, etc.) to achieve the page pressure measurement, the need to adjust the Apache operating mode to compare the final performance. configuration file location:/etc/httpd/conf/httpd.confIf the module is loaded, implement the configuration, a conditional module loadStartservers 8// service starts several sub-processes by default at startupMinspareservers 5// minimum number of idle processesMaxspareservers// ma

tools). When we have this data, the root cause of the problem can be found and processed as early as possible.The number of questions can be a standard for measuring development quality, but it must be used with caution. If you overemphasize the number of bugs, then the key to development and testing will be very tense. In an efficient company, all employees should be in harmony.In order to better evaluate the quality of the code. Bugs can be divided

Tags: style blog http io ar color OS sp forChoosing a good InnoDB log file size is key to InnoDB write performance. This can is done by measuring the amount of writes in the redo logs. You can find a detailed explanation the this post.To sum up, here is the main points: The redo logs should is large enough to store at a hour of logs at Peak-time You can either use the LSN in the SHOW ENGINE INNODB status OUTPUT or the Innodb_os_log_writte

This article introduces a simple network program roundtrip, which is used to measure the network latency between two machines, that is, "roundtrip time/round trip Time/rtt". This article mainly examines the tcp_nodelay of the fixed-length TCP message and the function of the packet. The code for this article is shown in http://code.google.com/p/muduo/source/browse/trunk/examples/roundtrip/roundtrip.cc The method of measuring RTT is simple: Host A se

choose to optimize the content-file combination, multimedia optimization, caching, and compressing files-but there is also a need to optimize the server. One of the best indicators is the load time of the first byte, and the first byte load time represents the time taken from the link creation to the first byte of the successful conversion. This time also includes the time the server performs various protocols and calculations.Typically, the server side encounters problems related to the first

Version: MEMS2_0212_01Size: 4.35 MBRelease date: 2002/12/15System Platform: Windows98/Me/2000/XP [Intended audience]Chemical, pharmaceutical, mechanical, electronic, and other industrial enterprises, hospitals, and other units that require measuring instruments management. [Function overview]● Metering Instruments Account ManagementComplete basic billing management for measuring instruments. Including in-us

, click on the "Open XX program" when the call to OpenFile this method, all need to open the different. Therefore, we may need to create a computer-corresponding program Address table. For example:Computer nameProgram AddressDelit. CN01C:\Program Files\qq\bin\qq.exeDelit. CN02D:\Program Files\qq\bin\qq.exeDelit. CN03C:\Tencent\QQ.exeDelit. CN04E:\Program Files\qq\bin\qq.exeWell, we can open the file under which address, by using the person who is the computer.Dim computer_name = System.Environme

measuring tube has the large penetration rate, usually may use in the small pouring pile, in the large-scale pouring pile application should be cautious, because the big diameter pile needs to pour the massive concrete, the cement's hydration heat is not easy to diverge: In view of plastic thermal expansion coefficient and concrete difference, After the solidification of the concrete tube due to the temperature drop of the radial and longitudinal con

Directwrite.This article will show you how to use directwrite to measure the size of direct2d text.Second, the solutionThe following is a function I implemented for measuring the width and height of text, which is preceded by code:Use IDWriteTextLayout to get the text size HRESULT gettextsize (const wchar* text, idwritetextformat* Ptextformat, d2d1_size_f Size) { HRESULT hr = S_OK; idwritetextlayout* ptextlayout = NULL; Create a t

a group of forces to complete, each group to complete a plot of the area, in the integration into a large map when the changes can be based on the calculation of the software automatic modification is very convenient. For example, two graph contour intersection, if you can click on two contours to automatically modify.These are some of my feelings and suggestions for using CASS7.0, perhaps a lot of immature places, but I still put forward my proposal, I hope you can express your views.About

characters transmitted by a device per second. If the internal transmission rate of a hard disk is 240 Mbit/s, the number of characters transmitted by the device per second is 240 Mbit, if it is converted to Byte (Byte)/s (second), it is equivalent to 240Mbit Bytes 8 = 30 MByte/s (Abbreviation: 30 MB/s ). Dpi (points/per inch) Dpi is an important parameter for measuring the resolution of a printer. When purchasing a printer, we usually notice that th

lot with the data center directors and found that although companies attach great importance to server performance, they also pay close attention to factors other than server performance. In fact, 80% of enterprise data centers face problems such as heat dissipation, energy consumption, and space occupied ." Mr Raju Penumatcha, vice president of Sun, said: "The 'SWAp value' shows a clear image for the data center directors, it can measure the space usage, power consumption, and performance of t

completed in time. And a democratic vote that does not vote for itself will force everyone to focus on the status of each part of the team while focusing on their own tasks, which is beneficial to everyone's understanding of the project.I think the above method may not be completely fair to the software engineering, but the reward and punishment system instead of the simple scoring system is advantageous to the team project advancement and finally completes, in the task assignment may not be fa

microsecond delay function parameter: No return value: No ********** *************************/void Delay5us (){Uchar I; i--; i--; i--; i--; i--; i--; }void delayms (UINT ms){uint x, y; for (x=ms;x>0;x--)for (y=110;y>0;y--); }void Init (){tmod=0x21;SCON = 0x50;Ea=1;Es=1;Et0=1;Et1=1;TH1=0XFD;TL1=0XFD;Tr1=1;}void Send (UINT dat){Sbuf= (dat/100) + 48; Send hundredswhile (! TI);ti=0;sbuf= (DAT%100/10) +48; Send 10-bitwhile (! TI); ti=0;sbuf= (dat%10) +48; Send Bitswhile (! TI); ti=0;}UINT Conut (vo

: www.bjkji.comAddress: Beijing Haidian District Science and Technology Park, No. 158th CourtyardMain items: Oxygen index tester/Horizontal vertical burner/building materials Flammability test furnace/building materials non-combustible test furnace/building material smoke density tester/Large board method fire Retardant coating tester/initial drying crack resistance test device/Electronic universal testing machine/high and low temperature test chamber/cryogenic freeze-thaw test chamber/constant