asl

再见了NSLog

半城伤御伤魂 提交于 2020-02-15 05:44:39
本文原文发表自我的【 自建博客 】,cnblogs同步发表,格式未经调整,内容以原博客为准 我是前言 打Log是我们debug时最简单朴素的方法, NSLog 对于objc开发就像 printf 对于c一样重要。但在使用 NSLog 打印大量Log,尤其是在游戏开发时(如每一帧都打印数据), NSLog 会明显的拖慢程序的运行速度(游戏帧速严重下滑)。本文探究了一下 NSLog 如此之慢的原因,尝试使用lldb断点调试器解决DebugLog问题。 小测试 测试下分别使用 NSLog 和 printf 打印10000次耗费的时间。 CFAbsoluteTimeGetCurrent() 函数可以打印出当前的时间戳,精度还是很高的,于是乎测试代码如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 CFAbsoluteTime startNSLog = CFAbsoluteTimeGetCurrent(); for (int i = 0; i < 10000; i++) { NSLog(@"%d", i); } CFAbsoluteTime endNSLog = CFAbsoluteTimeGetCurrent(); CFAbsoluteTime startPrintf = CFAbsoluteTimeGetCurrent(); for (int i = 0; i <

Cross compilation (magic 7F45 error)

瘦欲@ 提交于 2019-12-25 12:55:12
问题 I want to use the Android Screenshot Library. In order to start the native service, i have to execute the run.ps1 file via Windows PowerShell, as it's written here: https://code.google.com/p/android-screenshot-library/wiki/UserGuide I got the "..asl-native : not executable : magic 7F45" error, and i read that i have to make a cross-compilation to make it work; but i have no clue how to do that? what compilers should I use? 回答1: Magic number 7F45 specifies the Executable and Linkable Format

Read logs using the new swift os_log api

落花浮王杯 提交于 2019-12-20 09:38:23
问题 Deprecated in iOS 10.0: os_log(3) has replaced asl(3) So iOS 10.0 apparently deprecates the asl (Apple System Log) api and replaces it with the very limited os_log api. I use something similar to the code snippet below to read out log writes for the running app to show in a uitextview in app - and now it is full of deprecation warnings. Does anyone know of a way to read the printed log using the new os_log api? Because I only see an api for writing (https://developer.apple.com/reference/os

数据结构——查找和排序部分整理

雨燕双飞 提交于 2019-12-18 02:34:31
查找 查找:静态查找、动态查找、哈希查找 静态查找:顺序查找、折半查找(二分查找)、索引顺序查找(分块查找) 顺序查找:ASL=1/2(n+1)平均查找长度 折半查找:ASL可以将所给序列画成类似完全二叉树,根据每层点个数*所在层数之和。 索引查找:块间有序,块内无序ASL=1/2(b+1)+1/2(s+1). 动态查找:二叉排序树(二叉查找树)、B-/B+树 二叉排序树:动态查找高效, 同一组关键字构造的二叉排序树,形态不一定相同,ASL也不一定相同(给定顺序了,就唯一了) 它的ASL画图计算 B-树:多路查找树 一颗m阶B-树是m叉平衡二叉树,树中每个节点最多m棵子树。 哈希表:构造方法、处理冲突方法 处理冲突方法:1、开放定址法:线性探测再散列(d= 1,2,3…m-1)、二次探测再散列(d=1,-1,4,-4,9,-9)、伪随机探测再散列(其中有一种双散列探测)2、再哈希 3、链地址法 哈希函数好坏取决于:哈希函数、处理冲突方式、装填因子a(a=填入记录长度/哈希表长度) 排序 排序:插入排序、“交换”排序、选择排序、归并排序 插入排序:直接插入、希尔排序(间距d) “交换”排序:冒泡排序、快速排序 选择排序:简单选择排序、堆排序 来源: CSDN 作者: weixin_44040169 链接: https://blog.csdn.net/weixin_44040169

解决此报错:Cannot create Woodstox XMLInputFactory: java.lang.NoClassDefFoundError: com/ctc/wstx/stax/WstxInput

浪子不回头ぞ 提交于 2019-12-06 16:30:18
最近在研究webservice服务的技术,可是写完webservice例子后,项目正常启动,但是在输入url地址后报如下的错误: Cannot create Woodstox XMLInputFactory: java.lang.NoClassDefFoundError: com/ctc/wstx/stax/WstxInput .................................... 具体报错信息我就不帖上去了。 原因:缺少woodstox-core-asl-4.4.1.jar和stax2-api-3.1.4.jar包。引入以后还报错说明这个jar包可能没有被有效加载,也许跟其他jar包有冲突。 如果还是有报错,看项目中是否存在冲突包,并删除之。 删除项目中的冲突的wstx-asl-3.2.1.jar包 来源: https://www.cnblogs.com/zhangliang88/p/11994512.html

Why would Spark executors be removed (with “ExecutorAllocationManager: Request to remove executorIds” in the logs)?

匿名 (未验证) 提交于 2019-12-03 01:34:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Im trying to execute a spark job in an AWS cluster of 6 c4.2xlarge nodes and I don't know why Spark is killing the executors... Any help will be appreciated Here the spark submit command: . /usr/ bin / spark - submit -- packages = "com.databricks:spark-avro_2.11:3.2.0" -- jars RedshiftJDBC42 - 1.2 . 1.1001 . jar -- deploy - mode client -- master yarn -- num - executors 12 -- executor - cores 3 -- executor - memory 7G -- driver - memory 7g -- py - files dependencies . zip iface_extractions . py 2016 - 10 - 01 > output . log At line

编写dll程序遇到的一些问题

匿名 (未验证) 提交于 2019-12-03 00:22:01
首先是这些东西必须要有 #ifndef _JN_ASYNC_SOCKET_CMN_H_ #define _JN_ASYNC_SOCKET_CMN_H_ //--------------------------------------------------------- #ifdef WIN32 // Windows #ifdef JNASYNCSOCKETLIB_EXPORTS #ifndef JN_ASL_API // 防止重复定义开始 #define JN_ASL_API __declspec(dllexport) #endif // 防止重复定义结束 #else #ifndef JN_ASL_API // 防止重复定义开始 #define JN_ASL_API __declspec(dllimport) #endif // 防止重复定义结束 #endif #ifndef JN_ASL_CALL // 防止重复定义开始 #define JN_ASL_CALL __stdcall #endif // 防止重复定义结束 #else // linux编译时,该宏定义为空 #ifndef JN_ASL_API // 防止重复定义开始 #define JN_ASL_API #endif // 防止重复定义结束 #ifndef JN_ASL_CALL // 防止重复定义开始

How to compile ASL (boost based Adobe C++ gui library) on linux?

我与影子孤独终老i 提交于 2019-11-28 00:35:50
问题 Intro So we spent some days with all our team that consists of 2 individuals including me (meaning that our efforts were not as professional as yours could be) at CloudObserver triing to make it out with ASL. We have found out how to compile ASL on windows and Mac OS. We have created some visual/graphical GUI simple tutorials on ASL that worked perfectly with Mac OS X and Windows, so we have seen that Adobe Source Libraries work for creation of at least simple UI's and dialogs. Than we

how to compile ASL (boost based Adobe C++ gui library) on windows 7?

醉酒当歌 提交于 2019-11-27 07:17:31
问题 So I am triing to compile ASL on windows 7. I got Adobe C++ Library files, docs and examples from here to %ASL% I have downloaded and compiled boost (in some other folder %boost% ) So now I have compiled Boost (all libs), bjam, VS 2008 installed (I have it in %ProgramFiles(x86)% ) Now I try to run %ASL%/tools/build.bat but I get some strange lines like Found compiler at C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\ Setting environment for using Microsoft Visual Studio 2008 x86 tools.