warm-up

What really is to “warm up” threads on multithreading processing?

由 僤鯓⒐⒋嵵緔 提交于 2021-01-27 12:44:40
问题 I’m dealing with multithreading in Java and, as someone pointed out to me, I noticed that threads warm up, it is, they get faster as they are repeatedly executed. I would like to understand why this happens and if it is related to Java itself or whether it is a common behavior of every multithreaded program. The code (by Peter Lawrey) that exemplifies it is the following: for (int i = 0; i < 20; i++) { ExecutorService es = Executors.newFixedThreadPool(1); final double[] d = new double[4 *

Cannot warm up pages using applicationInitialization in webconfig

由 那年仲夏 提交于 2020-01-03 09:23:49
问题 I have a simple Umbraco 7.7.2 application and I'm hosting it on Azure (app-service). When I restart the server it takes 20-40 seconds for first time requesting a page which is really annoying specially when the load is high and you are Scaling out to reduce the response times. I've tried this setting in my webconnfig, but it doesn't seem to work. <system.webServer> <applicationInitialization> <add initializationPage="/page1/?warmup=1" hostName="mydomain.com" /> <add initializationPage="/page1

Why does Matlab run faster after a script is “warmed up”?

由 醉酒当歌 提交于 2019-12-17 16:04:16
问题 I have noticed that the first time I run a script, it takes considerably more time than the second and third time 1 . The "warm-up" is mentioned in this question without an explanation. Why does the code run faster after it is "warmed up"? I don't clear all between calls 2 , but the input parameters change for every function call. Does anyone know why this is? 1. I have my license locally, so it's not a problem related to license checking. 2. Actually, the behavior doesn't change if I clear

How to exclude warmup time from JMeter summary?

由 家住魔仙堡 提交于 2019-12-14 04:25:37
问题 I have a simple JMeter throughput test that spawns 20 threads and each thread executes a simple SQL query against a database. I have set a ramp up time of 10 seconds and a total test time of 70 seconds. When I execute the test in non-GUI mode I see the following summary output: summary + 1 in 0.1s = 7.4/s Avg: 135 Min: 135 Max: 135 Err: 0 (0.00%) Active: 1 Started: 1 Finished: 0 summary + 137501 in 28.5s = 4831.0/s Avg: 3 Min: 1 Max: 614 Err: 0 (0.00%) Active: 20 Started: 20 Finished: 0

How do I confirm whether Application Warm-Up plugin works?

由 我们两清 提交于 2019-12-11 20:34:46
问题 I have a web application that's consuming a WCF service. Both are slow on warmup after IIS reset or app pool recycle. So, as a possiible solution I installed Application Warm-Up for IIS 7.5 and set it up for both web site and wcf service. My concern is, it doesn't seem to make any difference - first time I hit the site it still takes long time to bring it up. I checked event logs, there are no errors. So I'm wondering if anything special needs to be done for that module to work. 回答1: In IIS

Do external references slow down my ASP.NET application? (VS: Add Reference dialog)

由 十年热恋 提交于 2019-12-11 06:44:42
问题 I've noticed as my website gets bigger and bigger, the time my laptop takes to display my page is much longer then say a new projects with minimal references. I think there are two variables at play that affect ASP.NET warm-up time: The quantity of external references The time it takes for a worker process to new() up each instance per worker process Additional time for the WCF objects as the ServiceHost may be in an external DLL First, are those the correct variables to take into account

How to run Google app engine endpoint methods from the backend

由 送分小仙女□ 提交于 2019-12-06 14:15:34
问题 I have followed all the configuration steps for my WarmupServlet in my app engine project and I see it run at startup, but still I see my first endpoint call as a loading request which takes up to 25 seconds which is absolutely unacceptable. I need to be able to warm up each endpoint individually so that there will be no loading requests. (Apparently just setting up a warmp-up servlet is not enough.) So, my question is, how can I call a method in endpoints so that the endpoint is properly

Returning a custom response code for for serving static html when using IIS ApplicationInitialization remapManagedRequestsTo feature?

由 此生再无相见时 提交于 2019-12-06 05:57:57
问题 I'm currently using the ApplicationInitialization feature of IIS to warm up my ASP.NET application. I've set the attribute remapManagedRequestsTo to "warmup.html" . <applicationInitialization remapManagedRequestsTo="warmup.html" skipManagedModules="true" doAppInitAfterRestart="true" > <add initializationPage="/home" /> <add initializationPage="/about-us" /> </applicationInitialization> It's working well but I would like to return a custom status code when the content for Warmup.html is

How to run Google app engine endpoint methods from the backend

由 核能气质少年 提交于 2019-12-04 18:51:42
I have followed all the configuration steps for my WarmupServlet in my app engine project and I see it run at startup, but still I see my first endpoint call as a loading request which takes up to 25 seconds which is absolutely unacceptable. I need to be able to warm up each endpoint individually so that there will be no loading requests. (Apparently just setting up a warmp-up servlet is not enough.) So, my question is, how can I call a method in endpoints so that the endpoint is properly warmed up to serve from my WarmupServlet? I tried below with no success: MyEndpoint me = new MyEndpoint();

IIS 7.5 Application Initialization for ASP.NET web service (warmup) without remapping requests

由 末鹿安然 提交于 2019-12-03 19:10:55
问题 I'm trying to use the IIS 7.5 Application Initialization extension to configure a warmup process for my web application. This is an approach I am taking to minimize slow downs caused by application pool recycling, which is a problem explained well in other questions on Stack Overflow. What I would like , is to gain the benefits of application initialization, without remapping requests anywhere else. What I've done so far I followed the IIS 8 instructions for the basic use case, and it works
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