1. Autonomic Resource Provisioning for
Cloud-Based Software
Pooyan Jamshidi
Supervisor: Dr. Claus Pahl
In collaboration with: Aakash Ahmad
IC4- Irish Centre for Cloud Computing and Commerce
School of Computing, Dublin City University
Department of Computer Engineering
Shahid Beheshti University, Tehran, Iran
30th Dec, 2013

2. Measured
Service
Resource
Pooling
Elasticity
Ubiquitous
Network
Access
Self
Service

3. Actual
traffic
~50% = wasted hardware

4. ~75% = wasted hardware
Actual
traffic

5. Really like this??

6. Capacity we can provision
with RobusT2Scale

8. scale-up =
bigger VMs
scale-out = more
VMs

17. SUT
Criteria
Big spike Dual phase
Large
variations
Quickly
varying
Slowly
varying
Steep tri
phase
with
RobusT2Scale
𝑟𝑡95%
973ms
537ms
509ms
451ms
423ms
498ms
𝑣𝑚
3.2
3.8
5.1
5.3
3.7
3.9
with
overprovisioning
𝑟𝑡95%
354ms
411ms
395ms
446ms
371ms
491ms
𝑣𝑚
6
6
6
6
6
6
with under
provisioning
𝑟𝑡95%
1465ms
1832ms
1789ms
1594ms
1898ms
2194ms
𝑣𝑚
2
2
2
2
2
2
SLA with 𝒓𝒕 𝟗𝟓 = 𝟔𝟎𝟎𝒎𝒔

18. 0.1
0.08
0.06
0.04
0.02
0
alpha=0.1
alpha=0.5
alpha=0.9
alpha=1.0

19. Benefits
Limitations,
open issues
& future directions

20. ~75% = wasted hardware
Actual
traffic
0.1
0.08
0.06
0.04
0.02
0
alpha=0.1
alpha=0.5
alpha=0.9
alpha=1.0