How to display `top` results sorted by memory usage in real time?

If you're using the top that comes with Ubuntu (top -v = procps-ng version 3.3.10), then you can use these interactive keyboard shortcuts to change the sorting. Note that these are all capital letters, so either use shift or caps lock. M %MEM N PID P…

5 commands to check memory usage on Linux

Memory Usage On linux, there are commands for almost everything, because the gui might not be always available. When working on servers only shell access is available and everything has to be done from these commands. So today we shall be checking th…

SHELL:Find Memory Usage In Linux (统计每个程序内存使用情况)

转载一个shell统计linux系统中每个程序的内存使用情况,因为内存结构非常复杂,不一定100%精确,此shell可以在Ghub上下载. [root@db231 ~]# ./memstat.sh Private + Shared = RAM used Program 540.78 mb + 175.56 mb = 716.35 mb oracle(25) 24.50 mb + 327.00 kb = 24.82 mb iscsiuio 15.37 mb + 341.00 kb = 15.70…

GPU Memory Usage占满而GPU-Util却为0的调试

最近使用github上的一个开源项目训练基于CNN的翻译模型,使用THEANO_FLAGS='floatX=float32,device=gpu2,lib.cnmem=1' python run_nnet.py -w data/exp1/,运行时报错,打印"The image and the kernel must have the same type. inputs(float64), kerns(float32)"的错误,然后使用THEANO_FLAGS='floatX=float…

【转】C++ Incorrect Memory Usage and Corrupted Memory(模拟C++程序内存使用崩溃问题)

http://www.bogotobogo.com/cplusplus/CppCrashDebuggingMemoryLeak.php Incorrect Memory Usage and Corrupted Memory Here are the primary sources of the memory related problems. Using memory not initialized Using memory that we do not own Using more memor…

Shell script for logging cpu and memory usage of a Linux process

Shell script for logging cpu and memory usage of a Linux process http://www.unix.com/shell-programming-and-scripting/223177-shell-script-logging-cpu-memory-usage-linux-process.html…

Why does the memory usage increase when I redeploy a web application?

That is because your web application has a memory leak. A common issue are "PermGen" memory leaks. They happen because the Classloader (and the Class objects it loaded) cannot be recycled unless some requirements are met (*). They are stored in…

Reducing and Profiling GPU Memory Usage in Keras with TensorFlow Backend

keras 自适应分配显存 & 清理不用的变量释放 GPU 显存 Intro Are you running out of GPU memory when using keras or tensorflow deep learning models, but only some of the time? Are you curious about exactly how much GPU memory your tensorflow model uses during training? Are…

Memory usage of a Java process java Xms Xmx Xmn

http://www.oracle.com/technetwork/java/javase/memleaks-137499.html 3.1 Meaning of OutOfMemoryError One common indication of a memory leak is the java.lang.OutOfMemoryError error. This error is thrown when there is insufficient space to allocate an ob…

Redis: Reducing Memory Usage

High Level Tips for Redis Most of Stream-Framework's users start out with Redis and eventually move to Cassandra because Redis becomes too expensive to host. Stream, our hosted API for building scalable newsfeeds & activity streams is also based on C…

detect data races The cost of race detection varies by program, but for a typical program, memory usage may increase by 5-10x and execution time by 2-20x.

小结: 1. conflicting access 2.性能危害优化 The cost of race detection varies by program, but for a typical program, memory usage may increase by 5-10x and execution time by 2-20x. 3.典型案例与修复 Accidentally shared variable // ParallelWrite writes data to file1…

Find out C++ Memory Usage in Code

You can use Microsoft Platform SDK functions to get the heap size at a specific point. If get the heap size at point A in your code, and then again at point B, you can see how much it has grown. This might help you isolate here memory growth occurs.…

oraagent.bin High Memory Usage as Dependent Listener was Removed/Renamed

Grid Infrastructure oraagent.bin process using huge amount of memory and forking huge number of threads. <GI_HOME>/log/<node>/agent/crsd/oraagent_grid/oraagent_grid.log 2014-02-12 08:08:10.132: [ USRTHRD][417280]{0:13:2} checkCrsStat 2 CLSCRS…

Debugging memory usage with kbmMW

kbmMW的更高版本包含越来越多的功能,可用于通常的日志记录,审计,运行期发生异常时的堆栈跟踪以及现在的内存使用调试.这些功能实际上可用于任何应用程序,不仅限于基于kbmMW开发的多层应用系统.我已经在kbmMW上写了一些关于日志记录和审计系统的文章,其中还介绍了如何在处理异常时的堆栈跟踪,最近新增加的功能是能够实时跟踪应用程序的每个内存分配.你可能会问,FastMM已经内置了内存泄漏检测,为什么还用kbmMW的内存调试器呢?FastMM仅跟踪通过常规GetMem等完成的内存分配,它不跟踪通过W…

Memory Usage Performance Guidelines

https://developer.apple.com/library/content/documentation/Performance/Conceptual/ManagingMemory/Articles/MallocDebug.html#//apple_ref/doc/uid/20001884-104718…

1137. N-th Tribonacci Number(Memory Usage: 13.9 MB, less than 100.00% of Python3)

其实思路很简单,套用一下普通斐波那契数列的非递归做法即可,不过这个成绩我一定要纪念一下,哈哈哈哈哈代码在这儿: class Solution: def tribonacci(self, n: int) -> int: a, b, c =0, 1, 1 if n is 0: return 0 if n is 1: return 1 if n is 2: return 1 for i in range(2, n): a, b ,c = b, c, a+b+c return c…

刷题23. Merge k Sorted Lists

一.题目说明这个题目是23. Merge k Sorted Lists,归并k个有序列表生成一个列表.难度为Hard,实际上并不难,我一次提交就对了. 二.我的解答就是k路归并,思路很简单,实现也不难. #include<iostream> #include<vector> using namespace std; struct ListNode { int val; ListNode *next; ListNode(int x) : val(x), next(NULL) {}…

LC 955. Delete Columns to Make Sorted II

We are given an array A of N lowercase letter strings, all of the same length. Now, we may choose any set of deletion indices, and for each string, we delete all the characters in those indices. For example, if we have an array A = ["abcdef",&qu…

LeetCode 第四题 Median of Two Sorted Arrays 二人渣渣选手乱七八糟分析发现基本回到思路1

题目 There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). You may assume nums1 and nums2 cannot be both empty. Example 1: nums1 = [1,…

刷题21. Merge Two Sorted Lists

一.题目说明这个题目是21. Merge Two Sorted Lists,归并2个已排序的列表.难度是Easy! 二.我的解答既然是简单的题目,应该一次搞定.确实1次就搞定了,但是性能太差: Runtime: 20 ms, faster than 8.74% of C++ online submissions for Merge Two Sorted Lists. Memory Usage: 9.4 MB, less than 5.74% of C++ online submissions…

刷题34. Find First and Last Position of Element in Sorted Array

一.题目说明题目是34. Find First and Last Position of Element in Sorted Array,查找一个给定值的起止位置,时间复杂度要求是Olog(n).题目的难度是Medium! 二.我的解答这个题目还是二分查找(折半查找),稍微变化一下.target==nums[mid]后,需要找前面.后面的值是否=target. 一次写出来,bug free,熟能生巧!怎一个爽字了得! #include<iostream> #include<vecto…

conky 配置变量表

转自conky 配置变量表项目主页:http://conky.sourceforge.net/ 文档说明:http://conky.sourceforge.net/docs.html Variable Arguments () = optional Explanation acpiacadapter (adapter) ACPI ac adapter state. On linux, the adapter option specifies the subfolder of /sys/clas…

[Erlang21]Erlang性能分析工具eprof fporf的应用

前段时间项目改代码突然cpu波动很大,排查了好久都没有找到原因,只能求助于性能测试工具 : <<Erlang程序设计>>----Joe Armstorng[哈哈,登月第一人也叫Armstrong] P416 cprof测试每个函数被调用了多少次,这个工具为轻量在运行系统上使用这个工具会给系统带来5%~10%的额外负载 fprof显示函数调用和被调用的埋单,并将结果输出到一个文件中,这个工具比较适合于在实验环境或模拟环境中对进行大规模的性能前一段,它会带来非常显著的系统负载. e…

circus 架构

转自官方文档:https://circus.readthedocs.io/en/latest/design/architecture/ Overall architecture Circus is composed of a main process called circusd which takes care of running all the processes. Each process managed by Circus is a child process of circusd.…

[Swift]LeetCode807. 保持城市天际线 | Max Increase to Keep City Skyline

In a 2 dimensional array grid, each value grid[i][j]represents the height of a building located there. We are allowed to increase the height of any number of buildings, by any amount (the amounts can be different for different buildings). Height 0 is…

Leetcode Note

算法刷题笔记 Leetcode-11. Container With Most Water Method: (对撞指针)每次保留两指针中最大的那个即可求得最大的面积 Runtime: 16 ms, faster than 95.65% of C++ online submissions for Container With Most Water. Memory Usage: 9.9 MB, less than 43.30% of C++ online submissions for Contai…