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android - what is message queue native poll once in android?

由 人盡茶涼 提交于 2020-01-12 03:10:01
问题 I know that threads have a message queue and handlers are able to push runnables or messages to them, but when I profile my android application using Android Studio tools, there is an strange process: android.os.MessageQueue.nativePollOnce It uses the CPU more than all other processes. What is it and how can I reduce the time that the CPU spends on that? You can find the profiler result in the below. 回答1: Short answer: The nativePollOnce method is used to "wait" till the next Message becomes

使用ASP.NET2.0 Profile存储用户信息

由 笑着哭i 提交于 2020-01-08 17:56:29
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 作者: Stephen Walther 原文地址：http://msdn.microsoft.com/asp.net/default.aspx?pull=/library/en-us/dnvs05/html/UserProfiles.asp 译者： Tony Qu 概要：许多ASP.NET应用程序需要跨访问的用户属性跟踪功能，在ASP.NET1.1中，我们只能人工实现这一功能。但如今，使用 ASP.NET 2.0的Profile对象，这个过程变得异常简单。Stephen Walther将验证该对象，并向你展示如何使用Profile来跟踪用户属性、创建一个购物篮，及其他一些例子。 总目录 介绍 User Profile总揽 定义User Profile 使用Profile组 使用复杂的Profile属性 继承一个Profile 迁移匿名Profile设置 配置Profile Provider 管理Profiles并生成Profile报告 总结 相关书籍 Microsoft ASP.NET 2.0支持被称为Profile的新对象，它可以自动在多个Web应用程序的访问之间存储用户信息。一个User Profile中可以存储各种类型的信息，这些信息既可以是简单的string和integer类型，也可以是复杂的自定义类型

How can I measure the duration of each phase(map, shuffle/sort, reduce) in Hadoop?

由 雨燕双飞 提交于 2020-01-05 13:27:20
问题 Hadoop execute map, shuffle/sort and reduce phase. I want to know the duration of each phase. I mean, how long do they take? I have searched lots of documents but I couldn't find any clear solution. For example, I set the configure file and enable the profiler in order to use Hadoop profiler. But the result file "java.hprof.txt" is not generated. Furthermore, I'm not sure the result file includes the information what I want. Can you help me? 回答1: One way of tracking your job's progress is

.gcda files don't merge on multiple runs

由 眉间皱痕 提交于 2020-01-05 04:21:31
问题 I have two main functions that use a common C++ class. File1: main.cpp #include <iostream> #include "HelloAnother.h" int main() { HelloAnother::sayHello1(); return 0; } File2: main2.cpp #include <iostream> #include "HelloAnother.h" int main() { HelloAnother::sayHello2(); return 0; } File3: HelloAnother.h #pragma once class HelloAnother { public: static void sayHello1(); static void sayHello2(); }; File4: HelloAnother.cpp #include <iostream> #include "HelloAnother.h" void HelloAnother:

Is there any supported Bluetooth profile which is used in iOS except 6 profiles(HFP, PBAP, A2DP, AVRCP, PAN, HID)?

由 為{幸葍}努か 提交于 2020-01-04 04:43:09
问题 Is there any supported Bluetooth profile which is used in iOS5 except 6 profiles(HFP, PBAP, A2DP, AVRCP, PAN, HID)? Can I use SPP(Serial-Port profile) as developing iPhone app? 回答1: If you want to use Serial Port Profile(SPP),either you need to apply for MFi or use MFi certified devices to communicate with iOS. Here is the MFi link https://developer.apple.com/programs/mfi/ In addition to the above Profiles MAP is supported from iOS6. You can find the supported profile under this link http:/

Symfony 3 - profiling performance

由 家住魔仙堡 提交于 2020-01-04 04:19:06
问题 Is it possible to get more/deeper data about the Symfony speed/slowness than seen at the image below? As you see it says that the "controller" process takes around 8s (in dev mode), but I would like to know more about it - what actually Symfony does in this 8 seconds. Obviously the form on the screen is a bit heavy and it takes almost 2s to render it, but that's still less than ~25% of time. This case is among the better ones, it can go to 15-20s, but I've just caught this one on screen. I've

Create Local User with Custom User Folder in Powershell

由 我的未来我决定 提交于 2020-01-02 13:26:09
问题 I am trying to create a new Win 2008 server local user and assign the user a different profile path. I don't want Windows to generate all the files under C:\Users\newUser, instead, I'd like to have it do that in D:\customDir\newUser. Does anyone know of a way to do this? So far this is what I have: $users= @("U1","U2","U3") $computer = [ADSI]"WinNT://$env:COMPUTERNAME,computer" $group = [ADSI]"WinNT://$env:COMPUTERNAME/MyCustomGroup,group" $users | foreach { $userName = $_ $userPath = "D:

In Maven, how to run a plugin based on a specific profile

由 此生再无相见时 提交于 2020-01-01 07:46:10
问题 I have a Maven project that has 3 modules. These are built by the parent pom.xml I now have a requirement that I need to run one plugin from inside one of the sub modules' pom.xml files based on the profile selected. How can I specify that this plugin should only run when a certain profile is used in build? 回答1: Please read the documentation on build profiles here: http://maven.apache.org/guides/introduction/introduction-to-profiles.html You basically need to define a profile in your sub

What are _Unwind_SjLj_Unregister and _Unwind_SjLj_Register?

由 天涯浪子 提交于 2020-01-01 05:40:29
问题 What are _Unwind_SjLj_Unregister and _Unwind_SjLj_Register? I get them as my top processor time users in my gprof report. google only returns links to people complaining about errors with these two. heres the only part of my report that has times != 0: Flat profile: Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls ms/call ms/call name 33.33 0.03 0.03 _Unwind_SjLj_Unregister 22.22 0.05 0.02 _Unwind_SjLj_Register 11.11 0.06 0.01 13886 0.00 0.00 toint

iPhone Distribution: No profiles currently match

由 …衆ロ難τιáo~ 提交于 2019-12-31 14:29:43
问题 I am about to upload an app to iTunes Connect. I am not Team Agent, nor does it seem the Team Agent can make me a Team Agent. So he logged onto Member Center and downloaded a Distribution Certificate, which is in my Keychain along with the WWDR Certificate. The bundle identifier is set to se."companyname"."appname". When I set the Code signing identity to Distribution, it says no profiles match. Can only the Team Agent build the final apps for upload? How do I make XCode "use the right set of
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