1. Detailed Analysis of MiBench benchmark suite
Lin Tang, Shweta Mokashi
EEL 5764 Computer Architecture

2. Overview Motivation MiBench benchmark suite Simulation Methodology
Simulation Results
Future work

3. Motivation Majority of microprocessors employed in embedded domain
Features like instruction distribution, memory behavior and available parallelism distinguish embedded applications from other applications
Most widely used SPEC benchmarks characterize workload for general purpose computers
Wide range of applications makes it difficult to characterize the embedded domain

4. MiBench Suite All programs are freely available as standard C code
Benchmarks are divided into six suites - each suite targets a specific area of embedded market
Benchmarks
Automotive and Industrial Control: Processors require performance in basic math abilities, bit manipulation, data input/output and simple data organization
Network: Require processors involving shortest path calculations, tree and table lookups and data input and output

5. MiBench Suite (contd.)
Security: Includes algorithms for data encryption, decryption and hashing
Consumer Devices: Multimedia applications which include jpeg encoding/decoding, image color format conversion, image dithering, color palette reduction, MP3 encode/decoding, and HTML typesetting
Office Automation: Text manipulation algorithms representing office machinery like printers, fax machines and word processors
Telecommunications: Benchmarks consist of voice encoding and decoding algorithms, frequency analysis and a checksum algorithm

6. MiBench Benchmarks Auto/ Industrial Network Security Consumer Devices
Office Automation
TeleComm
Basicmath
Djikstra
Blowfish encode
Jpeg
Rsynth
Crc
Bitcount
Patricia
Blowfish decode
Lame
stringsearch
Fft
Qsort
Rjindael decode
mad
ifft
Susan
(edges)
Sha
sha
tiff2rgba
Susan (corners)
Blowfish
tiffdither
Susan (smoothing)
tiffmedian

7. Simulation Methodology
Simulation Tool:
SimpleScalar ARM
Branch prediction schemes:
Bimodal
Comb
Gshare
Notaken
Taken
Cache Miss Rate as a function of …
Cache size
N-way set associative
ARM Configuration

8. Instruction count

9. Instruction Mix

10. Cache Miss Rates

11. Branch Prediction results

12. ARM Configurations

13. Instructions per cycle

14. Future work Power Analysis using Sim-panalyzer
Estimate power consumption in different components that model distinct parts of computer – cache power, datapath and execution power, clock tree power and I/O) power

15. Questions???