'Write fd' presentation slideshows

Advanced UNIX

Advanced UNIX. 240-491 Special Topics in Comp. Eng. 2 Semester 2, 2000-2001. Objectives look at low-level operations for handling files. 16. Low-level File I/O. Overview. 1. Basic Operations 2. Why use Low-level Operations? 3. A Simple Example 4. File Descriptors

635 views • 51 slides

I/O

I/O. Hakim Weatherspoon CS 3410, Spring 2013 Computer Science Cornell University. See: P&H Chapter 6.5-6. Goals for Today. Computer System Organization How does a processor interact with its environment? I/O Overview How to talk to device? Programmed I/O or Memory-Mapped I/O

604 views • 44 slides

Client/Server Distributed Systems

Client/Server Distributed Systems. 240-322, Semester 1, 2005-2006. Objectives look at low-level operations for handling files. 4. Low-level File I/O. Overview. 1. Basic Operations 2. Why use Low-level Operations? 3. A Simple Example 4. File Descriptors 5. File Permissions Again

435 views • 37 slides

Mining Specifications

Mining Specifications. Glenn Ammons , Dept. Computer Science University of Wisconsin Rastislav Bodik , Computer Science Division University of California, Berkeley James R. Larus , Microsoft Research POPL 2002. Motivation. Formal verification is a promising alternative to software testing

384 views • 28 slides

NFS & Distributed Systems Issues

NFS & Distributed Systems Issues. Vivek Pai Dec 12, 2002. The Next Project. Behavioral spec Implementation up to you Can assume max of 32 procs/threads Use a simple counter to implement simple counts I may release a tool to test easier But feel to use ApacheBench, etc. Behavioral Spec.

290 views • 21 slides

Scaling Up Parallel I/O on the SP David Skinner, NERSC Division, Berkeley Lab

Scaling Up Parallel I/O on the SP David Skinner, NERSC Division, Berkeley Lab. Motivation. NERSC uses GPFS for $HOME and $SCRATCH Local disk filesystems on seaborg (/tmp) are tiny Growing data sizes and concurrencies often outpace I/O methodologies. Seaborg.nersc.gov.

298 views • 21 slides

Single Process, Concurrent, Connection-Oriented Servers (TCP)

Single Process, Concurrent, Connection-Oriented Servers (TCP). (Chapter 12). INTRODUCTION. Last time: Concurrent Connection-Oriented server - echo server - that supports multiple clients at the same time using multiple processes Today: similar echo server but uses only one single process.

539 views • 20 slides

Linux Pipes and FIFOs

Linux Pipes and FIFOs. David Ferry, Chris Gill, Brian Kocoloski CSE 522S - Advanced Operating Systems Washington University in St. Louis St. Louis, MO 63130. IPC in Linux. Say I want to implement a client/server program with one process for each. How might these processes communicate?

154 views • 15 slides

Operating Systems 12 - files

Operating Systems 12 - files. PIETER HARTEL. Files. Properties Long term existence of data Sharable between processes Access control Operations Create/Delete Open/Close Read/Write/Seek Structure Bytes/Records. Directories. Path name Current directory Parent directory

161 views • 11 slides

Operating Systems 12 - files

Operating Systems 12 - files. PIETER HARTEL. Files. Properties Long term existence of data Sharable between processes Access control Operations Create/Delete Open/Close Read/Write/Seek Structure Bytes/Records. Directories. Path name Current directory Parent directory

186 views • 11 slides

Linux Pipes and FIFOs

297 views • 8 slides