Wihau

Exploiting parallel execution Use threads to deal with I/O delays Multi-core/Hyperthre...

Producer-Consumer Problem Common synchronization pattern Producer waits for empty slot...

Threads Memory Model Conceptual model Multiple threads run within the context of a sin...

I/O Unix I/O RIO (robust I/O) package Metadata, sharing, and redirection Standard I/O ...

Classical problem classes of concurrent programs Races: outcome depends on arbitrary s...

Socket Address Structures Generic socket address For address arguments to connect, bin...

A Client-Server Transaction Most network applications are based on the client-server m...

Explicit Free Lists Logically Physically blocks can be in any order Maintain list(s) o...

Can use a balanced tree (e.g. First-fit, next-fit, best-fit, etc....

execve allocates virtual pages for .text and .data sections & creates PTEs marked as i...

ECF Exists at All Levels of a System Exceptions Hardware and operating system kernel s...

An exception is a transfer of control to the OS kernel in response to some event (i.e....

e.g.Merges separate code and data sections into single sectionsRelocates symbols from ...

Read-only memory (ROM): programmed during productionProgrammable ROM (PROM): can be pr...

A superscalar processor can issue and execute multiple instructions in one cycle. The ...

Runtime stack (8MB limit)E.g.Statistically allocated dataE.g....