this goal is achieved. A common error is benchmarking in the development environment. In fact, you must perform a benchmark test in the production environment. (Actual production environment or simulated production environment, which can be easily implemented in SaaS.Many products are used for benchmarking, including AB, siege, and JMeter. I personally prefer the JMeter feature set, but AB and siege are ea
identify whether the improvement is caused by the overall rising factors of the industry, whether it is affected by ERP, or whether it is affected by innovative product sales, it also increases the enthusiasm of employees.
V. benchmarking. The questionnaire scoring method is self-evaluation and self-comparison. You can view yourself by yourself. However, the competition is not a matter of self-improvement. You think you have increased by 30%, but it
0.015 0.015
. Net built-in cache test code httpruntime. CacheProtected void page_load (Object sender, eventargs E){Int start = 200;Int runs = 10000;
String keybase = \ "testkey \";String OBJ = \ "this is a test of an object blah es, serialization does not seem to slow things down so much. the gzip compression is horrible performance, so we only use it for very large objects. I have not done any heavy benchmarking recently \";
Long begin = datetime. N
a variety of file operations. iozone is useful for faster Ming broad filesystem Analysis of a vendor's computer platform. it can also be used for NFS performance testing and the latest version now supports cluster testing as well. iozone had been ported to numerous UNIX OSes and Windows NT. read more about it and download the source by clicking on the link above.
Xforward-new!
Xforwardedis a comprehensive benchmarking solution for Mac OS x. In ad
I have written some articles about the automation functions of popular testing software. For example, segue's silkperformer (now Borland), Mercury Interactive's quick test Professional (qtp), And segue's silkteset. Recently, many csdn bosses have recommended these tools. I think it is necessary to repeat the old words. After all, we have a better choice. So I have rewritten those articles and posted them here. Today we will talk about silkperformer. In the previous article, we talked about the r
Benchmark Testing errors:
Use a subset of real data instead of a complete set.
Does not match real user behavior.
No check error. ----------- Check the error log when unexpected results are encountered during the test. The basic requirements are as follows.
Ignore the system warm-up process-after the system is restarted, there is no data in the cache. In this case, the test is not in line with the actual situation. In fact, it is likely that there is already a lot of data in the cache.
Th
Performance test comparison between Apache and Nginx in CentOSAfter apache2.4.1 is released, it is said that the performance target is directly directed to nginx. Therefore, you have compiled and installed two versions for stress testing on static pages.The test server has two CPUs of 2 GB memory.Compilation options:Apache:./Configure-prefix =/usr/local/apache-enable-proxy-http-enable-proxy-fcgi-enable-proxy-Enable-proxy-connect-enable-proxy-ftp-with-apr =/usr/local/apr-with-apr-util =/usr/local
delay; http://www.brendangregg.com/activebenchmarking.htmlActive benchmarking (Dynamic benchmark) for accurate and effective benchmark analysis.
The following is a summary of some objections that I do not suggest.
1. deny others (opposed)
Try to find a system or environment component, but it has nothing to do with you.
Suppose the problem lies in this component.
Push the problem to the team that is really related to the component.
If you find
1. I recently started to use Apache big data for Data Optimization. Let's talk about the AB stress testing tool in Apache.
The program "AB" has not been installed. You can use the following command to install:
apt-get install apache2-utils
The following are AB -- Help
SAGE: AB [Options] [http [s]: //] hostname [: Port]/pathoptions are: -N requests number of requests to perform-C concurrency number of multiple requests to make at a time-T timelimit seconds to Max. to spend on
used for the accessories or sub-accessories from the stock.
Backlog -- Incomplete order
All customer orders that have been received but not yet delivered. This is also called an unpaid order.
Back scheduling-reverse plan
A Method for Calculating the start date and completion date. The Production Plan is calculated in reverse order starting from the contract's delivery date to determine the completion date of each process.
Back order -- overdue order
Balance-on-hand inventory-existing inventory
I,
Tool AB attached to Apache
The full name of AB is apachemark. It is a small tool attached to Apache. It is specially used for the HTTP server's Benchmark Testing and can simulate multiple concurrent requests at the same time.
At the beginning of this example, I executed such a command AB-N 10-C 10 http://www.google.com /. This command is used to start AB, send 10 requests (-N 10) to www.google.com, and send 10 requests (-C 10) Each time-that is, all requests are sent.
Apache AB does a good jo
benefit from small memory consumption, thread safety, full access to various functions on the server.Official website: http://libmemcached.org/libMemcached.htmlInstallationCd/tmpwget HTTPS://LAUNCHPAD.NET/LIBMEMCACHED/1.0/1.0.18/+DOWNLOAD/LIBMEMCACHED-1.0.18.TAR.GZTAR-ZXVF LIBMEMCACHED-1.0.18.TAR.GZCD libmemcached-1.0.18mkdir-p/usr/local/libmemcached./configure--prefix=/usr/local/ libmemcached--with-memcachedmakemake InstallExecutable fileOnce installed, it also provides a variety of command-li
AB is a very useful test tool for Apache, and when you're done with Apache, you can find AB below the bin.
1 We can simulate 100 concurrent users, send 1000 requests to a page
./ab-n1000-c100 http://vm1.jianfeng.com/a.html
Where-n represents the number of requests,-C represents the number of concurrent
return Result:
# #首先是apache的版本信息This is Apachebench, Version 2.3 Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/Licensed to the Apache Software Foundation, http
-source test Web Service performance and Extensibility tool that runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning. Pylot generates concurrent loads (HTTP requests), verifies server responses, and produces reports with metrics. Execute and monitor test suites via GUI or shell/console.Web Capacity Analysis tool (WCAT) – A lightweight load generation utility that reproduces script HTTP requests to a
-source test Web Service performance and Extensibility tool that runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning. Pylot generates concurrent loads (HTTP requests), verifies server responses, and produces reports with metrics. Execute and monitor test suites via GUI or shell/console.Web Capacity Analysis tool (WCAT) – A lightweight load generation utility that reproduces script HTTP requests to a
fixed CPU for the number of instructions, and it does not finish in a relatively fixed time, it means that my measurements are affected by some external factors. If the test result is a large exception, it means that I have to find the external impact and then solve it.
Although these exceptions will be magnified in a small benchmark test, it will not affect a large scale benchmarking test. For large-scale bench
heap size of the virtual machine determines the time and frequency at which the virtual machine spends collecting garbage. The rate at which garbage collection can be accepted is related to the application and should be adjusted by analyzing the actual time and frequency of garbage collection. If the heap is large, the total garbage collection will be slow, but the frequency will be reduced. If you match the size of the heap with the need for memory, the collection will be complete quickly, but
:
Latency, how much time throughput is required to respond to a request, how many request system utilization per second can be processed, and when a large number of requests need to be processed, does your system run at full capacity? Resource overhead, the cost of each request determines the performance parameters to be measured, and we need automated benchmarking (benchmark) tools to help us perform performance comparisons before and after optimizat
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