<s>
Least	O
slack	O
time	O
(	O
LST	O
)	O
scheduling	O
is	O
an	O
algorithm	O
for	O
dynamic	B-Algorithm
priority	I-Algorithm
scheduling	I-Algorithm
.	O
</s>
<s>
Its	O
most	O
common	O
use	O
is	O
in	O
embedded	B-Architecture
systems	I-Architecture
,	O
especially	O
those	O
with	O
multiple	O
processors	O
.	O
</s>
<s>
It	O
imposes	O
the	O
simple	O
constraint	O
that	O
each	O
process	O
on	O
each	O
available	O
processor	O
possesses	O
the	O
same	O
run	O
time	O
,	O
and	O
that	O
individual	O
processes	O
do	O
not	O
have	B-Operating_System
an	I-Operating_System
affinity	I-Operating_System
to	I-Operating_System
a	O
certain	O
processor	O
.	O
</s>
<s>
This	O
is	O
what	O
lends	O
it	O
a	O
suitability	O
to	O
embedded	B-Architecture
systems	I-Architecture
.	O
</s>
<s>
However	O
,	O
like	O
earliest	B-Operating_System
deadline	I-Operating_System
first	I-Operating_System
,	O
and	O
unlike	O
rate	B-Operating_System
monotonic	I-Operating_System
scheduling	I-Operating_System
,	O
this	O
algorithm	O
can	O
be	O
used	O
for	O
processor	O
utilization	O
up	O
to	O
100%	O
.	O
</s>
