Information Technology Reference
In-Depth Information
3 7 3 3 1 3 3 6 7 9 1 9
Q
0
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
7
Q
8
Q
9
Serve the longest queue first.
2
4
5
Media title 8 completed
4-
Streams
Media Server
FIFO Queues
Figure 17.3
Maximal queue length batching
t
0
t
a
t
p
t
q
. . .
On-going multicast stream:
A
B
Patching stream:
A
w
time
Client Playback:
. . .
A
B
. . .
Buffered Data:
t
0
t
a
w
t
p
t
q
: Time when the multicast media stream begins.
: Client arrival time
: Waiting time for an available patching stream.
: Time when a patching stream is started, also playback begins.
: Time when the patching stream is terminated (
t
q
=
t
p
+
w
)
Figure 17.4
Operation of the patching technique
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