GitHub - RobKokochak/Unix-MLFQ-Scheduler-Refactor: Refactoring the Round-Robin scheduler in xv6 into a Multi-Level Feedback Queue.

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Refactoring the Round-Robin scheduler in xv6 into a Multi-Level Feedback Queue.

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Name		Name	Last commit message	Last commit date
Latest commit History 8 Commits
BUGS		BUGS
LICENSE		LICENSE
Makefile		Makefile
Notes		Notes
README		README
TRICKS		TRICKS
_cat		_cat
_echo		_echo
_forktest		_forktest
_grep		_grep
_init		_init
_kill		_kill
_ln		_ln
_ls		_ls
_mkdir		_mkdir
_rm		_rm
_sh		_sh
_spin		_spin
_stressfs		_stressfs
_usertests		_usertests
_wc		_wc
_zombie		_zombie
asm.h		asm.h
bio.c		bio.c
bio.d		bio.d
bio.o		bio.o
bootasm.S		bootasm.S
bootasm.d		bootasm.d
bootasm.o		bootasm.o
bootblock		bootblock
bootblock.asm		bootblock.asm
bootblock.o		bootblock.o
bootblockother.o		bootblockother.o
bootmain.c		bootmain.c
bootmain.d		bootmain.d
bootmain.o		bootmain.o
buf.h		buf.h
cat.asm		cat.asm
cat.c		cat.c
cat.d		cat.d
cat.o		cat.o
cat.sym		cat.sym
console.c		console.c
console.d		console.d
console.o		console.o
cuth		cuth
date.h		date.h
defs.h		defs.h
dot-bochsrc		dot-bochsrc
echo.asm		echo.asm
echo.c		echo.c
echo.d		echo.d
echo.o		echo.o
echo.sym		echo.sym
elf.h		elf.h
entry.S		entry.S
entry.o		entry.o
entryother		entryother
entryother.S		entryother.S
entryother.asm		entryother.asm
entryother.d		entryother.d
entryother.o		entryother.o
exec.c		exec.c
exec.d		exec.d
exec.o		exec.o
fcntl.h		fcntl.h
file.c		file.c
file.d		file.d
file.h		file.h
file.o		file.o
forktest.asm		forktest.asm
forktest.c		forktest.c
forktest.d		forktest.d
forktest.o		forktest.o
fs.c		fs.c
fs.d		fs.d
fs.h		fs.h
fs.img		fs.img
fs.o		fs.o
gdbutil		gdbutil
grep.asm		grep.asm
grep.c		grep.c
grep.d		grep.d
grep.o		grep.o
grep.sym		grep.sym
ide.c		ide.c
ide.d		ide.d
ide.o		ide.o
init.asm		init.asm
init.c		init.c
init.d		init.d
init.o		init.o
init.sym		init.sym
initcode		initcode
initcode.S		initcode.S
initcode.asm		initcode.asm
initcode.d		initcode.d
initcode.o		initcode.o
initcode.out		initcode.out
ioapic.c		ioapic.c

Repository files navigation

xv6 is a re-implementation of Dennis Ritchie's and Ken Thompson's Unix
Version 6 (v6).  xv6 loosely follows the structure and style of v6,
but is implemented for a modern x86-based multiprocessor using ANSI C.

ACKNOWLEDGMENTS

xv6 is inspired by John Lions's Commentary on UNIX 6th Edition (Peer
to Peer Communications; ISBN: 1-57398-013-7; 1st edition (June 14,
2000)). See also http://pdos.csail.mit.edu/6.828/2014/xv6.html, which
provides pointers to on-line resources for v6.

xv6 borrows code from the following sources:
    JOS (asm.h, elf.h, mmu.h, bootasm.S, ide.c, console.c, and others)
    Plan 9 (entryother.S, mp.h, mp.c, lapic.c)
    FreeBSD (ioapic.c)
    NetBSD (console.c)

The following people have made contributions:
    Russ Cox (context switching, locking)
    Cliff Frey (MP)
    Xiao Yu (MP)
    Nickolai Zeldovich
    Austin Clements

In addition, we are grateful for the bug reports and patches contributed by
Silas Boyd-Wickizer, Peter Froehlich, Shivam Handa, Anders Kaseorg, Eddie
Kohler, Yandong Mao, Hitoshi Mitake, Carmi Merimovich, Joel Nider, Greg Price,
Eldar Sehayek, Yongming Shen, Stephen Tu, and Zouchangwei.

The code in the files that constitute xv6 is
Copyright 2006-2014 Frans Kaashoek, Robert Morris, and Russ Cox.

ERROR REPORTS

If you spot errors or have suggestions for improvement, please send
email to Frans Kaashoek and Robert Morris (kaashoek,rtm@csail.mit.edu). 

BUILDING AND RUNNING XV6

To build xv6 on an x86 ELF machine (like Linux or FreeBSD), run "make".
On non-x86 or non-ELF machines (like OS X, even on x86), you will
need to install a cross-compiler gcc suite capable of producing x86 ELF
binaries.  See http://pdos.csail.mit.edu/6.828/2014/tools.html.
Then run "make TOOLPREFIX=i386-jos-elf-".

To run xv6, install the QEMU PC simulators.  To run in QEMU, run "make qemu".

To create a typeset version of the code, run "make xv6.pdf".  This
requires the "mpage" utility.  See http://www.mesa.nl/pub/mpage/.