PDF-NUMA aware heap memory manager

By Patryk Kaminski PatrykKaminskiamdcom Introduction Writing software for multiprocessor systems is not an easy task In an ideal scenario as the total number of processors increase in a syste. Dr. Andrew Wallace PhD . BEng. (hons) . EurIng. andrew.wallace@cs.umu.se. Overview. Priority Queue. Priority Queue Examples. Heap. Heap Implementation. Building a Heap. Heap Operations. Variations of Heap . NET Applications. Vance Morrison. Performance Architect. Microsoft Corporation. When Should Care about Memory?. Theory. Memory Usage Breakdown of a process. The Garbage Collected Heap. Characteristics of the GC . Problem Description. Types of Unbounded Heap Growth. Reference Lost (Leak). Reference lost to memory without freeing it. Well studied, wide variety of tools that identify leaks. Reference Retained. But no longer . Richard Johnson. richardj@microsoft.com. switech@microsoft.com. The memory manager is responsible for tracking a program’s dynamic data storage. . Unlike stacks which work based upon a simple FIFO/LIFO concepts, heaps require management routines to track the location of free and allocated memory chunks . CSCI 3110 Nan Chen. Priority Queue. Data structure that stores items and restricts accesses to the highest priority item. STL (Max heap) example. DeleteMax. 3, 88 2 , 6 ,7 . ?. Applications of priority queue. Prof. Michael Neary. Quick note about email. Use a meaningful subject!. CMSC 341 section #XX . [ISSUE]. I get a lot of email, so I’ll see your message faster if you take advantage of my filters.. Overview. 1. Jeff Woolsey. Windows Server & Cloud. Microsoft Corporation. VIR308. Session Objectives and Takeaways. What’s New In Windows Server 2012 Hyper-V Part 1. Scale Up Workloads. Platform Resiliency. Thomas Kejser. Senior Program Manager. Microsoft. Agenda. Windows Server 2008R2 and SQL Server 2008R2 improvements. Scale architecture. Customer Requirements. Hardware setup. Transaction log essentials. Phil Pennington. philpenn@microsoft.com. Microsoft. WSV317. . What will you look for?. Overall Solution Scalability. Agenda. Windows Server 2008 . R2. New NUMA APIs. New User-Mode Scheduling APIs. New C++ Concurrency Runtime. Claude TADONKI. MINES ParisTech – PSL Research University. Paris - France. Universidade. Federal . Flumin. ense. . (Niteroi - . Brasil. ) – May 15, 2019. Major Concerns with Manycores. N. on. . Non - • Memory access between processor core to main memory is not uniform. • Memory resides in separate regions called “NUMA domains͘” • For highest performance, cores should only acces Heap is a collection of variable-size memory chunks allocated by the program. e.g., . malloc. (), free() in C,. creating a new object in Java. . creating a new object in Java script. In a NUMA machine, data placement and thread binding will have impact on the performance of an application. OpenMP. data allocation. OpenMP. thread affinity. NUMA . Shared memory architecture. Current SMP systems adopt mostly NUMA shared memory architecture.. Code Injection Attacks. Paruj Ratanaworabhan, Cornell University . Ben Livshits and Ben Zorn, Microsoft Research. (Redmond, WA). Heap Spraying is a Problem. Firefox 3.5. July 14, 2009. http://www.web2secure.com/2009/07/mozilla-firefox-35-heap-spray.html.