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A modified version of MIT's xv6 OS.

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.cvsignore
.cvsignore
 
 
.dir-locals.el
.dir-locals.el
 
 
.gdbinit.tmpl
.gdbinit.tmpl
 
 
.gitignore
.gitignore
 
 
BUGS
BUGS
 
 
LICENSE
LICENSE
 
 
Makefile
Makefile
 
 
Notes
Notes
 
 
README
README
 
 
README.md
README.md
 
 
TRICKS
TRICKS
 
 
asm.h
asm.h
 
 
bio.c
bio.c
 
 
bootasm.S
bootasm.S
 
 
bootmain.c
bootmain.c
 
 
buf.h
buf.h
 
 
cat.c
cat.c
 
 
console.c
console.c
 
 
cuth
cuth
 
 
date.h
date.h
 
 
defs.h
defs.h
 
 
dot-bochsrc
dot-bochsrc
 
 
dummy.c
dummy.c
 
 
dummy1.c
dummy1.c
 
 
echo.c
echo.c
 
 
elf.h
elf.h
 
 
entry.S
entry.S
 
 
entryother.S
entryother.S
 
 
exec.c
exec.c
 
 
fcntl.h
fcntl.h
 
 
file.c
file.c
 
 
file.h
file.h
 
 
forktest.c
forktest.c
 
 
fs.c
fs.c
 
 
fs.h
fs.h
 
 
gdbutil
gdbutil
 
 
grep.c
grep.c
 
 
ide.c
ide.c
 
 
init.c
init.c
 
 
initcode.S
initcode.S
 
 
ioapic.c
ioapic.c
 
 
kalloc.c
kalloc.c
 
 
kbd.c
kbd.c
 
 
kbd.h
kbd.h
 
 
kernel.ld
kernel.ld
 
 
kill.c
kill.c
 
 
lapic.c
lapic.c
 
 
ln.c
ln.c
 
 
log.c
log.c
 
 
ls.c
ls.c
 
 
main.c
main.c
 
 
memide.c
memide.c
 
 
memlayout.h
memlayout.h
 
 
mkdir.c
mkdir.c
 
 
mkfs.c
mkfs.c
 
 
mmu.h
mmu.h
 
 
mp.c
mp.c
 
 
mp.h
mp.h
 
 
param.h
param.h
 
 
picirq.c
picirq.c
 
 
pinfo.c
pinfo.c
 
 
pipe.c
pipe.c
 
 
pr.pl
pr.pl
 
 
printf.c
printf.c
 
 
printpcs
printpcs
 
 
proc.c
proc.c
 
 
proc.h
proc.h
 
 
procStat.h
procStat.h
 
 
ps.c
ps.c
 
 
rm.c
rm.c
 
 
runoff
runoff
 
 
runoff.list
runoff.list
 
 
runoff.spec
runoff.spec
 
 
runoff1
runoff1
 
 
setPriority.c
setPriority.c
 
 
sh.c
sh.c
 
 
show1
show1
 
 
sign.pl
sign.pl
 
 
sleep1.p
sleep1.p
 
 
sleeplock.c
sleeplock.c
 
 
sleeplock.h
sleeplock.h
 
 
spinlock.c
spinlock.c
 
 
spinlock.h
spinlock.h
 
 
spinp
spinp
 
 
stat.h
stat.h
 
 
stressfs.c
stressfs.c
 
 
string.c
string.c
 
 
swtch.S
swtch.S
 
 
syscall.c
syscall.c
 
 
syscall.h
syscall.h
 
 
sysfile.c
sysfile.c
 
 
sysproc.c
sysproc.c
 
 
time.c
time.c
 
 
toc.ftr
toc.ftr
 
 
toc.hdr
toc.hdr
 
 
trap.c
trap.c
 
 
trapasm.S
trapasm.S
 
 
traps.h
traps.h
 
 
types.h
types.h
 
 
uart.c
uart.c
 
 

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Modified xv6

Implemented FCFS, PBS and MLFQ scheduling algorithms in MIT-xv6 OS.

Features

  • waitx system call.
  • getpinfo system call.
  • FCFS, PBS and MLFQ scheduling algorithms.

How to run

  • make clean
  • make qemu SCHEDPOL=<FLAG>.

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A modified version of MIT's xv6 OS.

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  • C 80.6%
  • C++ 4.6%
  • Assembly 3.8%
  • Makefile 3.4%
  • Shell 2.3%
  • Perl 2.1%
  • Other 3.2%