const int loops = 1000; public void DatabaseThreadSafetyTest() { var backgroundThread = new Thread(new System.Threading.ThreadStart(() => { for (int i = 1; i <= loops; i++) { Console.WriteLine("Background thread loop " + i); using (var db…

问 I have a xml file that needs to be read from many many times. I am trying to use the Parallel.ForEach to speed this processes up since none of that data being read in is relevant as to what order it is being read in. The data is just being used to…

Creating a Manager for Multiple Threads 1.You should also read Processes and Threads The previous lesson showed how to define a task that executes on a separate thread. If you only want to run the task once, this may be all you need. If you want to r…

本文首发于个人博客https://kezunlin.me/post/8d877e63/,欢迎阅读! cpp caffe net run in multiple threads Guide set_mode Caffe fails to use GPU in a new thread ??? see here the `Caffe::mode_` variable that controls this is thread-local, so ensure you're calling `caffe…

https://code.google.com/p/deep-learning-faces/source/browse/trunk/cuda_ut/include/bsxfun.h?r=7&spec=svn7 /* Copyright (C) 2013 Yichuan Tang. contact: tang at cs.toronto.edu http://www.cs.toronto.edu/~tang This program is free software: you can redist…

暂时也没准确定位到问题 https://support.microsoft.com/zh-cn/help/2803754/hotfix-rollup-2803754-is-available-for-the-.net-framework-4.5-in-windows-7,-windows-server-2008,-windows-server-2008-r2,-and-windows-vistahttps://support.microsoft.com/en-us/help/2576011/fi…

临界区 在同步的程序设计中,临界区段(Critical section)指的是一个访问共享资源(例如:共享设备或是共享存储器)的程序片段,而这些共享资源有无法同时被多个线程访问的特性. 当有线程进入临界区段时,其他线程或是行程必须等待(例如:bounded waiting 等待法),有一些同步的机制必须在临界区段的进入点与离开点实现,以确保这些共享资源是被异或的使用,例如:semaphore. 只能被单一线程访问的设备,例如:打印机. 一个最简单的实现方法就是当线程(Thread)进入临界区段时…

BACKGROUND Many processors include a time stamp count (TSC) counter which is typically implemented as a counter that increments at a fixed rate. Some known TSC counters are clocked at a bus clock rate and a multiplier value is added each bus clock cy…

本文来自于腾讯bugly开发者社区,非经作者同意,请勿转载,原文地址:http://dev.qq.com/topic/57b58022433221be01499480 作者:张三华 前言 随着微信iOS客户端业务的增长,在数据库上遇到的性能瓶颈也逐渐凸显.在微信的卡顿监控系统上,数据库相关的卡顿不断上升.而在用户侧也逐渐能感知到这种卡顿,尤其是有大量群聊.联系人和消息收发的重度用户. 我们在对SQLite进行优化的过程中发现,靠单纯地修改SQLite的参数配置,已经不能彻底解决问题.因此从6.3…

/****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite ** version 3.14.1. By combining all the individual C code files into this ** single large file…