There are two storage areas involved: the stack and the heap. The stack is where the current state of a method call is kept (ie local variables and references), and the heap is where objects are stored. The Hotspot documentation says that on Linux 64…

By default, TensorFlow maps nearly all of the GPU memory of all GPUs (subject to CUDA_VISIBLE_DEVICES) visible to the process. This is done to more efficiently use the relatively precious GPU memory resources on the devices by reducing memory fragmen…

Symptom You have questions related to the SAP HANA memory. You experience a high memory utilization or out of memory dumps. Environment SAP HANA Cause 1. Which indications exist for SAP HANA memory problems?2. How can I collect information about the…

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…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

2.5 – Garbage Collection  自动垃圾回收 Lua 5.3 Reference Manual http://www.lua.org/manual/5.3/manual.html#2.1 2.5 – Garbage Collection Lua performs automatic memory management. This means that you do not have to worry about allocating memory for new object…

https://blogs.msdn.microsoft.com/debugdiag/ https://blogs.msdn.microsoft.com/debuggingtoolbox/2012/10/04/tools-for-your-debugging-toolbox/ TOOLS –        Performance Monitor – PAL –        Process Monitor –        Process Explorer –        MPSReport…

man ipc [root@server1 proc]# man ipcIPC(2)                     Linux Programmer’s Manual                    IPC(2) NAME       ipc - System V IPC system calls SYNOPSIS       int ipc(unsigned int call, int first, int second, int third,               vo…

Concurrency and Its Management Race condition can often lead to system crashes, memory leak,corrupted data,or security problem as well avoid the use of global variables The Linux Semaphore Implementation Semaphore #include <linux/semaphore.h> void s…

Go 1.2 Release Notes Introduction to Go 1.2 Changes to the language Use of nil Three-index slices Changes to the implementations and tools Pre-emption in the scheduler Limit on the number of threads Stack size Cgo and C++ Godoc and vet moved to the g…