<s>
Light	B-Operating_System
Weight	I-Operating_System
Kernel	I-Operating_System
Threads	I-Operating_System
(	O
LWKT	B-Operating_System
)	O
is	O
a	O
computer	B-General_Concept
science	I-General_Concept
term	O
and	O
from	O
DragonFly	B-Application
BSD	I-Application
in	O
particular	O
.	O
</s>
<s>
LWKTs	B-Operating_System
differ	O
from	O
normal	O
kernel	B-Operating_System
threads	I-Operating_System
in	O
that	O
they	O
can	O
preempt	B-Operating_System
normal	O
kernel	B-Operating_System
threads	I-Operating_System
.	O
</s>
<s>
According	O
to	O
Matt	O
Dillon	O
,	O
DragonFlyBSD	B-Application
creator	O
:	O
</s>
