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Get program execution time in the shell
...] PIPELINE
Execute PIPELINE and print a summary of the real time, user CPU time,
and system CPU time spent executing PIPELINE when it terminates.
The return status is the return status of PIPELINE. The `-p' option
prints the timing summary in a slightly different format. This uses
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What killed my process and why?
...r get invoked?
Say you have 512 RAM + 1GB Swap memory. So in theory, your CPU has access to total of 1.5GB of virtual memory.
Now, for some time everything is running fine within 1.5GB of total memory. But all of sudden (or gradually) your system has started consuming more and more memory and it r...
Simple proof that GUID is not unique [closed]
...s licensed under the following terms: you must pay me $0.0001 per hour per CPU core you run it on. Fees are payable at the end of each calendar month. Please contact me for my paypal account details at your earliest convenience.
using System;
using System.Collections.Generic;
using System.Linq;
na...
了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...于处理文件系统操作的库,这一直是 C++ 语言存在的一个问题。过去,程序员必须使用本机 API 来解决此问题。通过本文您将了解一个提供安全、可移植且易用的 C++ 接口来促进文件系统操作的库:Boost Filesystem Library。
创建与...
fastest (low latency) method for Inter Process Communication between Java and C/C++
...e send/received,
2 Java processes just spawned, without assigning specific CPU cores with taskset:
TCP - 25 microseconds
Named pipes - 15 microseconds
Now explicitly specifying core masks, like taskset 1 java Srv or taskset 2 java Cli:
TCP, same cores: 30 microsecond...
据说这是一个程序员的手机......... - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...坏在半路上了。于是两位工程师和一位经理就如何修车的问题展开了讨论。硬件工程师说:“我可以用随身携带的瑞士军刀把车坏的部分拆下来,找出原因,排除故障。”项目经理说:“根据经营管理学,应该召开会议,根据问...
VS Debug调试模式下内存泄露检测原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
...前已经释放过了,或者根本就没分配过,可能存在潜在的问题)。程序退出的时候,如果链表还有数据,说明存在内存泄露,输出链表中的数据。
MS CRT已支持内存泄露的检测,使用MFC向导生成的工程,在DEBUG模式下,默认会...
解决:vs2010调试程序时出现: “当前不会命中断点。源代码与原始版本不同...
...
二、新建解决方案,新建测试项目均不会出现此问题。则问题应该出现在出问题的解决方案设置或项目设置上,怀疑调试时候,修改的程序集没有重新编译。,
查看程序的“配置管理器”,将 “生成” 勾选,再试,问...
如何跟程序员谈一场没有Bug的恋爱 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...,原因无他:呆萌又多金。但如何和程序员相处一直是个问题,这篇文章就教你如何优(xin)雅(j 现在越来越多的妹子把恋爱目标锁定在程序员上,原因无他:呆萌又多金。但如何和程序员相处一直是个问题,这篇文章就教...
一次「Too many open files」故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...务不可用故障,于是我惯性的判断应该还是 ES_HEAP_SIZE 的问题,不过登录服务器后发现日志里显示大量的「Too many open files」错误信息。
那么 ElasticSearch 设置的最大文件数到底是多少呢?可以通过 proc 确认:
shell> cat /proc/<PID>/l...
