Cs350 F19 Lecture 13

Review, multi-level paging formulas, TLBs.

Midterm Review.

Review of virtual memory so far. Single level paging. Intro to multi-level paging.

Scheduling.

Virtual memory. Dynamic relocation, segmentation, segment tables. Please note: due to various technical issues on the day of ...

A2b walkthrough. Continuation of OS/161 virtual memory.

A1 advice. Review of semaphores and condition variables. In-class handout. Memory models, volatile, deadlock.

Processes, process management calls, fork, waitpid, getpid, execv, _exit.

Multiprocessing example with preemption and system calls. IPC. A2a guide.

Kernel memory, on-demand paging.

A3 guide. Devices and I/O example.

A1Q1 locks.

Single and Multi-Level Paging.

File systems. Logical, virtual.

Physical file systems, chaining, virtual machines.

Device registers, port vs. memory mapping, intro to device drivers and how a disk works.

Process management recap, system calls.

Physical file systems, inodes, indirect blocks, path resolution.

Wrapup, final in-class problem, some review.