Real-time Data Compression Algorithms' Benchmarks

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George A. Reznik

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Dec 29, 1994, 3:22:43 PM12/29/94
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Real-time Data Compression Algorithms' Benchmarks
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
(C) 1993-94 by George A. Reznik <g...@UA.NET>
Release 1.3 12-29-94

This message contains comparative analysis of the most popular disk compres-
sion systems for DOS and Windows. The data presented could help potential
users to choose the best system. Also, they can be useful for some researchers
of real-time compressors.

It should be stressed, that the testing itself is quite painstaking, because
it is necessary to assess compression/decompression algorithms, excluding
effects of DOS integration schema, referencing to additional data structures,
internal buffers, and other detail of implementation. That is why I had to
pluck pieces of code from the systems to obtain reliable characteristics.

The fragments of Stacker 3.0..3.12, Stacker 4, JAM 1.2, SuperStor 1.07..2.05,
MS-DOS 6.2' DoubleSpace, MS-DOS 6.22' DriveSpace, PC-DOS 6.3' SuperStor/DS,
and XtraDrive 1.0 were wrapped into some adjusting code to have a uniform
interface and "implanted" into my program called COMPTEST.
Some results of COMPTEST's work are given below.

The tests were carried out on I486DX/33MHz (NU8/SysInfo CPU index: 71.2) PC
with the files from Calgary Text Compression Corpus (ftp.cpsc.ucalgary.ca:
[136.159.7.18] /pub/text.compression.corpus/text.compression.corpus.tar.Z)
as experimental patterns.

Notes: 1. The data presented are parts of my articles published
in the IndexPro magazine (V.3 and V.6, 1994). So that
ANY RE-PRINTS of the data presented should contain reference
to the source (means me).

2. Source code of the COMPTEST program (.C,.ASM files)
EXCLUDING plucked pieces of code could be obtained upon
request (see below).

3. Upon SPECIAL REQUEST of firms, whose code were "implanted",
I can present their reconstructions (with or without
recommendations on enhancement :-)

4. I intend to continue my tests, and add to them the
assessments of new real-time compression algorithms
as they will appear.

Any questions and/or comments concerning this posting should be
sent to:
George A. Reznik Internet: g...@UA.NET (the best way)
Vasilkovskaya str.8, apt.139 g...@jam.kiev.ua
252040 Kiev, UKRAINE g...@farm.cs.kiev.ua

Phone: +7 (044) 266-6547 FAX: +7 (044) 266-4091

============================================================================

Algorithms:

S3/1..S3/9 - algorithms from Stacker(*) 3.0 /P=1..9
notes: algorithm /P=1 is very similar to Stacker 2.0' one
Stacker 3.1 and Stacker 3.12 (built-in Novell DOS 7)
use the same algorithms

S4/1..S4/9 - algorithms from Stacker 4.0 /P=1..9
note: Stacker 4 always keeps in memory two different data
compression methods: new algorithm (which I marked
as S4/1..9) and Stacker 3.x compatible one (see S3/1..9).

JAM0..JAM2 - algorithms from the JAM 1.20 shareware disk compressor
(ftp: garbo.uwasa.fi:/pc/arcers/jam120sw.zip)
note: JAM0 means algorithm built in device driver,
JAM1,2 -- algorithms built it JAM defragmenter (JMAX).

SSTR - algorithm from SuperStor Data Compression Driver, Version 2.05
note: the same algorithm was used in earlier releases 1.03..2.04

SSDS - algorithm from PC-DOS 6.3 data compression driver - SuperStor/DS.

DSP - algorithm from MS-DOS 6.2 compression driver - DBLSPACE.BIN.
(MS-DOS 6.0 DoubleSpace uses completely the same algorithm)

DRSP - algorithm from MS-DOS 6.22 DRVSPACE.BIN module

XTRA - algorithm from XtraDrive device driver Version 1.0

(*) All products are trademarks of their respective companies.
----------------------------------------------------------------------------

Terms:

BLOCK_SIZE - maximum length of portion of plaintext to compress.
Usually, real-time data comressors split all data on disk on
series of independently compressed blocks. In DOS terminology
these blocks (usually 512..8K bytes chunks of logical disk space)
called Allocation Units or Clusters.

Length of original file (in bytes) L
Compression ratio = --------------------------------------, or C = --- (*)
Length of compressed file (in bytes) Lc

note: usually, real-time data compressors use another way
to express compression ratio:

(Size of original file (in blocks)) * BLOCK_SIZE
= -------------------------------------------------------------
(Size of compressed file (in disk sectors)) * disk sector size

which is less accurate estimation of algorithm's performance.
Here we will use formalae (*) for compression ratio.

Length of original file (in bytes) L
Compression rate = -------------------------------------, or Vc = --- (**)
Compression time (in seconds) Tc

Critical disk write rate = Compression rate * (1 - 1/Compression ratio),

or V^w = Vc * (1 - 1/C) (***)

note: the Critical Disk Read/Write Rate parameters were
introduced by author in article: "Performance of real-time
data compression systems", IndexPRO v6, EuroIndex, Kiev, 1994.

The V^w parameter means the disk write rate when the time
required to compress and store data on disk in compressed
form is equal to the time required to store it in original
(uncompressed) form. If actual disk write rate (Vw) is less
that V^w, then on-the-fly compression will SPEED-UP access
to the disk (Vcw):

L L Vw
Vcw = ------- = --------------- = -----------
Tc + Tw L/Vc + L/(C*Vw) Vw/Vc + 1/C

i.e. Vcw > Vw <=> Vw/Vc + 1/C < 1
||
\/
Vw < (1 - 1/C) * Vc, or Vm < V^w.

Length of original file (in bytes) L
Decompression rate = -------------------------------------, or Vd = --- (****)
Compression time (in seconds) Td

Critical disk read rate = Decompression rate * (1 - 1/Compression ratio),

or V^r = Vd * (1 - 1/C) (*****)

The V^r parameter means the disk read rate when the time
required to read compressed data and decompress (using given
algorithm) it is equal to the time required to read it in
original (uncompressed) form.

----------------------------------------------------------------------------

**** BLOCK_SIZE = 8Kbytes (16 sectors) ****

1. Compression ratio [x.yy:1]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.53 1.79 1.90 2.04 2.13 2.18 1.60 2.12 2.17 1.53 1.40 1.48 1.63 1.61
book1 1.42 1.66 1.73 1.88 1.97 1.99 1.44 1.86 1.89 1.35 1.32 1.34 1.46 1.46
book2 1.47 1.70 1.76 2.00 2.06 2.09 1.49 1.94 1.99 1.43 1.35 1.38 1.50 1.53
geo 1.21 1.29 1.30 1.43 1.44 1.45 1.22 1.34 1.37 1.08 1.20 1.16 1.20 1.18
news 1.58 1.78 1.83 2.02 2.08 2.11 1.62 1.99 2.03 1.53 1.49 1.52 1.61 1.64
obj1 1.81 1.89 1.92 1.96 1.99 2.01 1.79 1.95 1.98 1.67 1.72 1.76 1.71 1.81
obj2 2.08 2.29 2.37 2.39 2.46 2.52 2.05 2.52 2.57 1.95 1.96 2.01 2.05 2.11
paper1 1.62 1.92 2.01 2.12 2.23 2.27 1.63 2.20 2.24 1.59 1.42 1.52 1.69 1.68
paper2 1.55 1.84 1.94 2.06 2.16 2.20 1.56 2.11 2.14 1.51 1.42 1.45 1.61 1.60
paper3 1.51 1.78 1.87 2.00 2.09 2.13 1.51 2.03 2.06 1.45 1.33 1.41 1.57 1.56
paper4 1.60 1.86 1.94 2.05 2.15 2.19 1.58 2.06 2.10 1.53 1.23 1.48 1.63 1.64
paper5 1.63 1.90 1.97 2.05 2.15 2.19 1.60 2.09 2.12 1.56 1.28 1.50 1.63 1.68
paper6 1.69 1.97 2.06 2.17 2.28 2.33 1.69 2.26 2.31 1.63 1.40 1.57 1.75 1.75
pic 5.94 6.25 6.35 8.00 8.10 8.38 6.17 7.84 8.09 5.53 5.43 5.96 6.03 3.83
progc 1.86 2.08 2.15 2.25 2.36 2.41 1.82 2.35 2.40 1.74 1.47 1.72 1.86 1.89
progl 2.40 2.72 2.89 3.07 3.23 3.36 2.35 3.35 3.41 2.34 1.96 2.23 2.51 2.48
progp 2.43 2.72 2.85 2.98 3.10 3.23 2.52 3.41 3.46 2.40 2.33 2.37 2.56 2.52
trans 2.07 2.30 2.40 2.62 2.72 2.80 2.21 2.87 2.92 2.08 1.93 2.07 2.22 2.12
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.97 2.21 2.29 2.50 2.59 2.66 1.99 2.57 2.63 1.88 1.76 1.88 2.01 1.89
! !!! !!

2. Compression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.51 0.30 0.19 0.42 0.35 0.30 0.94 0.21 0.15 0.62 0.43 0.54 0.29 0.41
book1 0.45 0.24 0.15 0.36 0.29 0.25 0.85 0.18 0.12 0.52 0.40 0.47 0.27 0.37
book2 0.48 0.28 0.20 0.41 0.34 0.30 0.89 0.25 0.18 0.59 0.42 0.49 0.25 0.39
geo 0.41 0.23 0.12 0.27 0.24 0.22 0.74 0.13 0.03 0.49 0.36 0.44 0.18 0.33
news 0.52 0.31 0.23 0.42 0.35 0.31 0.94 0.26 0.19 0.63 0.46 0.54 0.27 0.42
obj1 0.60 0.39 0.23 0.35 0.33 0.25 0.99 0.17 0.05 0.70 0.52 0.63 0.25 0.48
obj2 0.67 0.41 0.22 0.39 0.37 0.26 1.09 0.22 0.13 0.75 0.58 0.71 0.35 0.51
paper1 0.52 0.29 0.19 0.41 0.34 0.29 0.94 0.24 0.17 0.61 0.45 0.53 0.32 0.42
paper2 0.49 0.26 0.17 0.39 0.32 0.27 0.91 0.20 0.14 0.57 0.43 0.50 0.30 0.39
paper3 0.48 0.26 0.17 0.39 0.32 0.27 0.89 0.21 0.15 0.56 0.42 0.49 0.29 0.39
paper4 0.51 0.28 0.18 0.38 0.32 0.27 0.91 0.23 0.16 0.59 0.43 0.52 0.30 0.40
paper5 0.52 0.30 0.20 0.39 0.33 0.27 0.92 0.26 0.18 0.61 0.43 0.52 0.28 0.41
paper6 0.54 0.31 0.20 0.41 0.35 0.28 0.96 0.25 0.17 0.62 0.46 0.55 0.32 0.43
pic 1.54 1.05 0.50 0.71 0.77 0.28 1.51 0.07 0.03 1.90 1.33 1.55 1.02 1.14
progc 0.59 0.34 0.22 0.42 0.36 0.27 1.03 0.25 0.18 0.67 0.50 0.61 0.33 0.46
progl 0.73 0.43 0.25 0.52 0.45 0.31 1.16 0.25 0.17 0.85 0.63 0.76 0.45 0.55
progp 0.74 0.44 0.25 0.49 0.44 0.27 1.21 0.26 0.16 0.86 0.67 0.80 0.48 0.56
trans 0.66 0.41 0.25 0.48 0.43 0.32 1.12 0.28 0.20 0.81 0.59 0.71 0.38 0.51
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.61 0.36 0.22 0.42 0.37 0.28 1.00 0.22 0.14 0.72 0.53 0.63 0.35 0.48
!!! !! !

3. Critical disk write rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.18 0.13 0.09 0.21 0.19 0.16 0.35 0.11 0.08 0.21 0.12 0.18 0.11 0.16
book1 0.13 0.10 0.06 0.17 0.14 0.12 0.26 0.08 0.06 0.13 0.10 0.12 0.09 0.12
book2 0.15 0.12 0.09 0.20 0.17 0.16 0.29 0.12 0.09 0.18 0.11 0.13 0.08 0.14
geo 0.07 0.05 0.03 0.08 0.07 0.07 0.13 0.03 0.01 0.04 0.06 0.06 0.03 0.05
news 0.19 0.14 0.10 0.21 0.18 0.16 0.36 0.13 0.10 0.22 0.15 0.18 0.10 0.16
obj1 0.27 0.18 0.11 0.17 0.16 0.13 0.44 0.08 0.02 0.28 0.22 0.27 0.10 0.21
obj2 0.35 0.23 0.13 0.23 0.22 0.16 0.56 0.13 0.08 0.37 0.28 0.36 0.18 0.27
paper1 0.20 0.14 0.10 0.22 0.19 0.16 0.36 0.13 0.09 0.23 0.13 0.18 0.13 0.17
paper2 0.17 0.12 0.08 0.20 0.17 0.15 0.33 0.11 0.07 0.19 0.13 0.16 0.11 0.15
paper3 0.16 0.11 0.08 0.19 0.17 0.14 0.30 0.11 0.08 0.17 0.10 0.14 0.11 0.14
paper4 0.19 0.13 0.09 0.19 0.17 0.15 0.33 0.12 0.08 0.20 0.08 0.17 0.12 0.16
paper5 0.20 0.14 0.10 0.20 0.18 0.15 0.35 0.14 0.10 0.22 0.09 0.17 0.11 0.17
paper6 0.22 0.15 0.10 0.22 0.20 0.16 0.39 0.14 0.10 0.24 0.13 0.20 0.14 0.18
pic 1.28 0.88 0.42 0.62 0.67 0.25 1.27 0.06 0.03 1.56 1.09 1.29 0.85 0.84
progc 0.27 0.18 0.12 0.23 0.21 0.16 0.46 0.14 0.11 0.28 0.16 0.26 0.15 0.22
progl 0.43 0.27 0.16 0.35 0.31 0.22 0.67 0.18 0.12 0.49 0.31 0.42 0.27 0.33
progp 0.44 0.28 0.16 0.33 0.30 0.19 0.73 0.18 0.11 0.50 0.38 0.46 0.29 0.34
trans 0.34 0.23 0.15 0.30 0.27 0.21 0.61 0.18 0.13 0.42 0.28 0.37 0.21 0.27
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.29 0.20 0.12 0.24 0.22 0.16 0.46 0.12 0.08 0.33 0.22 0.28 0.18 0.23
! !!! !!

4. Decompression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.70 1.85 1.91 1.62 1.64 1.66 1.16 1.49 1.61 1.70 0.91 1.30 1.91 1.37
book1 1.57 1.73 1.79 1.49 1.50 1.51 1.02 1.30 1.40 1.37 0.81 1.16 1.66 1.19
book2 1.64 1.77 1.81 1.57 1.59 1.60 1.10 1.39 1.49 1.69 0.86 1.24 1.88 1.29
geo 1.49 1.56 1.58 1.28 1.27 1.28 1.13 1.19 1.26 1.70 0.80 1.09 1.60 1.11
news 1.74 1.85 1.89 1.63 1.64 1.65 1.21 1.46 1.56 1.80 0.92 1.34 1.97 1.39
obj1 2.03 2.08 2.11 1.60 1.62 1.63 1.62 1.72 1.81 2.14 1.05 1.54 2.11 1.68
obj2 2.10 2.21 2.25 1.75 1.76 1.79 1.61 1.93 2.03 1.98 1.10 1.66 2.16 1.82
paper1 1.72 1.90 1.95 1.60 1.62 1.64 1.17 1.53 1.63 1.59 0.93 1.30 1.86 1.39
paper2 1.65 1.82 1.89 1.54 1.57 1.59 1.10 1.44 1.53 1.46 0.84 1.23 1.75 1.30
paper3 1.63 1.80 1.86 1.53 1.55 1.56 1.08 1.40 1.50 1.47 0.94 1.21 1.75 1.28
paper4 1.70 1.85 1.90 1.52 1.55 1.56 1.12 1.44 1.54 1.54 1.32 1.27 1.79 1.34
paper5 1.73 1.88 1.92 1.52 1.53 1.55 1.17 1.48 1.58 1.60 1.22 1.29 1.85 1.39
paper6 1.77 1.92 1.97 1.61 1.64 1.66 1.21 1.57 1.67 1.62 1.01 1.33 1.90 1.43
pic 4.08 4.16 4.15 4.02 3.94 4.08 3.81 4.58 4.89 4.27 2.62 3.72 8.07 4.17
progc 1.88 1.98 2.02 1.67 1.70 1.72 1.34 1.66 1.76 1.75 1.11 1.44 1.99 1.58
progl 2.19 2.32 2.39 2.01 2.03 2.08 1.60 2.17 2.28 2.11 1.23 1.75 2.37 1.93
progp 2.19 2.30 2.35 1.93 1.94 1.99 1.72 2.21 2.30 2.11 1.19 1.83 2.39 1.99
trans 2.05 2.15 2.20 1.89 1.90 1.94 1.59 1.99 2.11 2.15 1.16 1.69 2.37 1.76
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.94 2.06 2.11 1.77 1.78 1.80 1.43 1.78 1.89 1.89 1.11 1.52 2.30 1.63
!żż !!ż żż !!!

5. Critical disk read rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.59 0.82 0.90 0.83 0.87 0.90 0.44 0.79 0.87 0.59 0.26 0.42 0.74 0.52
book1 0.46 0.69 0.76 0.70 0.74 0.75 0.31 0.60 0.66 0.36 0.20 0.29 0.52 0.37
book2 0.52 0.73 0.78 0.79 0.82 0.83 0.36 0.67 0.74 0.51 0.22 0.34 0.63 0.45
geo 0.26 0.35 0.36 0.38 0.39 0.40 0.20 0.30 0.34 0.13 0.13 0.15 0.27 0.17
news 0.64 0.81 0.86 0.82 0.85 0.87 0.46 0.73 0.79 0.62 0.30 0.46 0.75 0.54
obj1 0.91 0.98 1.01 0.78 0.81 0.82 0.71 0.84 0.90 0.86 0.44 0.66 0.88 0.75
obj2 1.09 1.24 1.30 1.02 1.04 1.08 0.82 1.16 1.24 0.96 0.54 0.83 1.11 0.96
paper1 0.66 0.91 0.98 0.85 0.89 0.92 0.45 0.83 0.90 0.59 0.28 0.44 0.76 0.56
paper2 0.59 0.83 0.92 0.79 0.84 0.87 0.39 0.76 0.82 0.49 0.25 0.38 0.66 0.49
paper3 0.55 0.79 0.87 0.76 0.81 0.83 0.36 0.71 0.77 0.46 0.23 0.35 0.64 0.46
paper4 0.64 0.86 0.92 0.78 0.83 0.85 0.41 0.74 0.81 0.53 0.25 0.41 0.69 0.52
paper5 0.67 0.89 0.95 0.78 0.82 0.84 0.44 0.77 0.83 0.57 0.27 0.43 0.72 0.56
paper6 0.72 0.95 1.01 0.87 0.92 0.95 0.49 0.88 0.95 0.63 0.29 0.48 0.81 0.61
pic 3.39 3.49 3.50 3.52 3.45 3.59 3.19 4.00 4.29 3.50 2.14 3.10 6.73 3.08
progc 0.87 1.03 1.08 0.93 0.98 1.01 0.60 0.95 1.03 0.74 0.35 0.60 0.92 0.74
progl 1.28 1.47 1.56 1.36 1.40 1.46 0.92 1.52 1.61 1.21 0.60 0.97 1.43 1.15
progp 1.29 1.45 1.53 1.28 1.31 1.37 1.04 1.56 1.64 1.23 0.68 1.06 1.46 1.20
trans 1.06 1.22 1.28 1.17 1.20 1.25 0.87 1.30 1.39 1.12 0.56 0.87 1.30 0.93
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.90 1.08 1.14 1.02 1.05 1.09 0.69 1.06 1.14 0.84 0.44 0.68 1.17 0.78
! !! !!!

**** BLOCK_SIZE = 4Kbytes (8 sectors) ****

1. Compression ratio [x.yy:1]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.50 1.73 1.81 1.96 2.03 2.07 1.55 1.92 1.96 1.47 1.40 1.45 1.59 1.56
book1 1.41 1.61 1.67 1.84 1.91 1.92 1.42 1.75 1.78 1.31 1.31 1.32 1.45 1.44
book2 1.45 1.65 1.69 1.94 1.99 2.00 1.47 1.79 1.82 1.39 1.34 1.36 1.49 1.50
geo 1.21 1.27 1.28 1.40 1.41 1.41 1.22 1.32 1.35 1.07 1.20 1.16 1.20 1.17
news 1.55 1.72 1.76 1.95 2.00 2.02 1.58 1.85 1.88 1.48 1.46 1.49 1.59 1.59
obj1 1.79 1.86 1.89 1.92 1.95 1.96 1.78 1.93 1.95 1.65 1.71 1.74 1.72 1.79
obj2 2.03 2.21 2.28 2.27 2.33 2.37 1.99 2.38 2.41 1.87 1.90 1.94 2.02 2.04
paper1 1.60 1.85 1.93 2.06 2.14 2.17 1.61 2.04 2.07 1.54 1.40 1.50 1.68 1.65
paper2 1.53 1.78 1.85 1.99 2.07 2.10 1.54 1.95 1.98 1.45 1.41 1.43 1.58 1.57
paper3 1.49 1.72 1.79 1.93 2.01 2.03 1.49 1.88 1.91 1.40 1.37 1.39 1.54 1.53
paper4 1.57 1.78 1.84 1.98 2.06 2.09 1.55 1.92 1.95 1.47 1.39 1.45 1.59 1.59
paper5 1.62 1.85 1.91 2.01 2.09 2.12 1.59 1.98 2.02 1.52 1.28 1.49 1.64 1.66
paper6 1.66 1.89 1.96 2.08 2.17 2.20 1.64 2.06 2.09 1.56 1.48 1.54 1.71 1.69
pic 5.86 6.14 6.22 7.68 7.74 8.01 6.11 7.71 7.91 5.47 5.62 5.86 5.96 3.38
progc 1.82 2.01 2.07 2.17 2.26 2.30 1.76 2.17 2.20 1.67 1.57 1.68 1.83 1.84
progl 2.32 2.59 2.72 2.88 3.01 3.11 2.23 2.96 3.00 2.17 2.03 2.11 2.37 2.38
progp 2.32 2.56 2.67 2.77 2.88 2.98 2.29 2.89 2.91 2.17 2.15 2.19 2.36 2.38
trans 2.01 2.21 2.30 2.50 2.58 2.64 2.05 2.50 2.53 1.94 1.84 1.96 2.11 2.05
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.93 2.14 2.20 2.41 2.48 2.53 1.94 2.39 2.43 1.81 1.77 1.84 1.97 1.82
!! !!! !

2. Compression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.50 0.31 0.20 0.38 0.33 0.29 0.90 0.28 0.21 0.61 0.42 0.51 0.29 0.41
book1 0.45 0.25 0.17 0.34 0.29 0.25 0.83 0.26 0.19 0.52 0.39 0.45 0.27 0.37
book2 0.48 0.29 0.22 0.38 0.33 0.30 0.86 0.30 0.24 0.59 0.41 0.47 0.26 0.39
geo 0.40 0.23 0.13 0.25 0.22 0.21 0.73 0.19 0.06 0.49 0.36 0.43 0.19 0.33
news 0.51 0.31 0.24 0.38 0.33 0.29 0.90 0.32 0.24 0.62 0.44 0.52 0.27 0.39
obj1 0.60 0.40 0.24 0.32 0.30 0.24 0.96 0.21 0.09 0.71 0.50 0.60 0.26 0.48
obj2 0.66 0.41 0.23 0.34 0.33 0.24 1.04 0.30 0.19 0.73 0.55 0.67 0.35 0.50
paper1 0.51 0.30 0.21 0.38 0.33 0.28 0.91 0.31 0.24 0.61 0.44 0.52 0.31 0.41
paper2 0.48 0.27 0.18 0.36 0.31 0.27 0.88 0.28 0.21 0.57 0.42 0.48 0.30 0.39
paper3 0.47 0.27 0.19 0.36 0.30 0.27 0.86 0.28 0.21 0.56 0.41 0.47 0.29 0.38
paper4 0.50 0.28 0.19 0.35 0.31 0.26 0.88 0.29 0.22 0.58 0.42 0.49 0.29 0.40
paper5 0.52 0.30 0.21 0.37 0.32 0.27 0.91 0.31 0.24 0.60 0.43 0.51 0.29 0.41
paper6 0.53 0.31 0.21 0.38 0.32 0.27 0.92 0.31 0.23 0.61 0.45 0.53 0.32 0.42
pic 1.51 1.05 0.49 0.66 0.72 0.28 1.46 0.10 0.05 1.91 1.27 1.43 1.01 1.10
progc 0.58 0.34 0.24 0.38 0.33 0.26 0.98 0.33 0.25 0.66 0.49 0.58 0.33 0.45
progl 0.71 0.42 0.26 0.47 0.41 0.30 1.10 0.33 0.24 0.82 0.59 0.69 0.44 0.53
progp 0.71 0.43 0.25 0.43 0.39 0.26 1.14 0.33 0.22 0.80 0.61 0.73 0.45 0.53
trans 0.65 0.41 0.26 0.43 0.39 0.30 1.05 0.34 0.26 0.78 0.56 0.66 0.37 0.50
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.60 0.37 0.23 0.39 0.35 0.27 0.96 0.28 0.20 0.71 0.51 0.60 0.35 0.47
!!! !! !

3. Critical disk write rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.17 0.13 0.09 0.19 0.17 0.15 0.32 0.13 0.10 0.20 0.12 0.16 0.11 0.15
book1 0.13 0.09 0.07 0.16 0.14 0.12 0.25 0.11 0.08 0.12 0.09 0.11 0.08 0.11
book2 0.15 0.11 0.09 0.18 0.16 0.15 0.27 0.13 0.11 0.17 0.10 0.12 0.09 0.13
geo 0.07 0.05 0.03 0.07 0.06 0.06 0.13 0.05 0.02 0.03 0.06 0.06 0.03 0.05
news 0.18 0.13 0.10 0.19 0.17 0.15 0.33 0.15 0.11 0.20 0.14 0.17 0.10 0.14
obj1 0.26 0.18 0.11 0.15 0.15 0.12 0.42 0.10 0.04 0.28 0.21 0.26 0.11 0.21
obj2 0.33 0.22 0.13 0.19 0.19 0.14 0.52 0.17 0.11 0.34 0.26 0.32 0.18 0.25
paper1 0.19 0.14 0.10 0.20 0.18 0.15 0.34 0.16 0.12 0.21 0.13 0.17 0.13 0.16
paper2 0.17 0.12 0.08 0.18 0.16 0.14 0.31 0.14 0.10 0.18 0.12 0.14 0.11 0.14
paper3 0.15 0.11 0.08 0.17 0.15 0.14 0.28 0.13 0.10 0.16 0.11 0.13 0.10 0.13
paper4 0.18 0.12 0.09 0.17 0.16 0.14 0.31 0.14 0.11 0.19 0.12 0.15 0.11 0.15
paper5 0.20 0.14 0.10 0.19 0.17 0.14 0.34 0.15 0.12 0.21 0.09 0.17 0.11 0.16
paper6 0.21 0.15 0.10 0.20 0.17 0.15 0.36 0.16 0.12 0.22 0.15 0.19 0.13 0.17
pic 1.25 0.88 0.41 0.57 0.63 0.25 1.22 0.09 0.04 1.56 1.04 1.19 0.84 0.77
progc 0.26 0.17 0.12 0.20 0.18 0.15 0.42 0.18 0.14 0.26 0.18 0.23 0.15 0.21
progl 0.40 0.26 0.16 0.31 0.27 0.20 0.61 0.22 0.16 0.44 0.30 0.36 0.25 0.31
progp 0.40 0.26 0.16 0.27 0.25 0.17 0.64 0.22 0.14 0.43 0.33 0.40 0.26 0.31
trans 0.33 0.22 0.15 0.26 0.24 0.19 0.54 0.20 0.16 0.38 0.26 0.32 0.19 0.26
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.28 0.19 0.12 0.21 0.20 0.15 0.42 0.15 0.11 0.31 0.21 0.26 0.17 0.21
! !!! !!

4. Decompression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.71 1.84 1.90 1.44 1.45 1.46 1.13 1.39 1.49 1.75 0.87 1.28 1.89 1.35
book1 1.58 1.73 1.78 1.35 1.36 1.36 1.00 1.23 1.32 1.43 0.80 1.15 1.66 1.18
book2 1.43 1.77 1.80 1.41 1.41 1.42 1.08 1.30 1.39 1.77 0.85 1.22 1.87 1.28
geo 1.50 1.56 1.58 1.14 1.14 1.14 1.11 1.17 1.23 1.77 0.80 1.09 1.59 1.11
news 1.75 1.85 1.88 1.44 1.45 1.45 1.19 1.38 1.47 1.87 0.91 1.32 1.96 1.37
obj1 2.05 2.09 2.12 1.40 1.40 1.41 1.60 1.72 1.79 2.20 1.05 1.53 2.11 1.67
obj2 2.10 2.21 2.25 1.49 1.50 1.52 1.57 1.85 1.93 2.00 1.08 1.62 2.13 1.79
paper1 1.74 1.89 1.94 1.43 1.45 1.46 1.15 1.43 1.53 1.65 0.93 1.29 1.87 1.38
paper2 1.66 1.82 1.88 1.39 1.41 1.42 1.07 1.34 1.44 1.51 0.84 1.22 1.75 1.28
paper3 1.64 1.80 1.84 1.37 1.38 1.39 1.05 1.31 1.40 1.52 0.86 1.20 1.74 1.26
paper4 1.70 1.83 1.88 1.34 1.35 1.37 1.10 1.36 1.45 1.59 0.91 1.25 1.80 1.32
paper5 1.73 1.87 1.91 1.40 1.41 1.43 1.15 1.42 1.50 1.62 1.23 1.28 1.84 1.38
paper6 1.77 1.92 1.95 1.42 1.44 1.45 1.17 1.45 1.54 1.65 0.91 1.31 1.88 1.40
pic 4.14 4.22 4.22 3.28 3.20 3.31 3.71 4.52 4.81 4.30 2.60 3.67 4.18 4.14
progc 1.90 1.99 2.03 1.47 1.48 1.50 1.29 1.55 1.64 1.80 1.01 1.42 1.98 1.56
progl 2.18 2.32 2.38 1.72 1.74 1.77 1.51 1.96 2.06 2.09 1.15 1.68 2.31 1.88
progp 2.17 2.27 2.31 1.65 1.65 1.69 1.58 1.93 2.02 2.02 1.12 1.72 2.27 1.91
trans 2.05 2.15 2.20 1.64 1.65 1.67 1.49 1.79 1.89 2.15 1.12 1.62 2.30 1.72
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.93 2.06 2.10 1.54 1.55 1.57 1.38 1.67 1.77 1.93 1.06 1.49 2.06 1.61
! !!! !!

5. Critical disk read rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.57 0.78 0.85 0.71 0.74 0.75 0.40 0.67 0.73 0.56 0.25 0.40 0.70 0.48
book1 0.46 0.66 0.71 0.62 0.65 0.65 0.30 0.53 0.58 0.34 0.19 0.28 0.52 0.36
book2 0.44 0.70 0.73 0.68 0.70 0.71 0.35 0.57 0.63 0.50 0.22 0.32 0.61 0.43
geo 0.26 0.33 0.35 0.33 0.33 0.33 0.20 0.28 0.32 0.12 0.13 0.15 0.27 0.16
news 0.62 0.77 0.81 0.70 0.73 0.73 0.44 0.63 0.69 0.61 0.29 0.43 0.73 0.51
obj1 0.90 0.97 1.00 0.67 0.68 0.69 0.70 0.83 0.87 0.87 0.44 0.65 0.88 0.74
obj2 1.07 1.21 1.26 0.83 0.86 0.88 0.78 1.07 1.13 0.93 0.51 0.78 1.08 0.91
paper1 0.65 0.87 0.93 0.74 0.77 0.79 0.44 0.73 0.79 0.58 0.27 0.43 0.76 0.54
paper2 0.58 0.80 0.86 0.69 0.73 0.74 0.38 0.65 0.71 0.47 0.24 0.37 0.64 0.46
paper3 0.54 0.75 0.81 0.66 0.69 0.71 0.35 0.61 0.67 0.43 0.23 0.34 0.61 0.44
paper4 0.62 0.80 0.86 0.66 0.69 0.71 0.39 0.65 0.71 0.51 0.26 0.39 0.67 0.49
paper5 0.66 0.86 0.91 0.70 0.74 0.76 0.43 0.70 0.76 0.55 0.27 0.42 0.72 0.55
paper6 0.70 0.90 0.96 0.74 0.78 0.79 0.46 0.75 0.80 0.59 0.30 0.46 0.78 0.57
pic 3.43 3.53 3.54 2.85 2.79 2.90 3.10 3.93 4.20 3.51 2.14 3.04 3.48 2.92
progc 0.86 1.00 1.05 0.79 0.83 0.85 0.56 0.84 0.89 0.72 0.37 0.57 0.90 0.71
progl 1.24 1.42 1.51 1.12 1.16 1.20 0.83 1.30 1.37 1.13 0.58 0.88 1.34 1.09
progp 1.23 1.38 1.44 1.05 1.08 1.12 0.89 1.26 1.33 1.09 0.60 0.93 1.31 1.11
trans 1.03 1.18 1.24 0.98 1.01 1.04 0.76 1.07 1.14 1.04 0.51 0.79 1.21 0.88
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.88 1.05 1.10 0.86 0.89 0.91 0.65 0.95 1.02 0.81 0.43 0.65 0.95 0.74
!! !!! !

**** BLOCK_SIZE = 2Kbytes (4 sectors) ****

1. Compression ratio [x.yy:1]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.45 1.61 1.66 1.83 1.88 1.90 1.48 1.74 1.77 1.38 1.36 1.40 1.51 1.49
book1 1.38 1.53 1.56 1.76 1.81 1.82 1.39 1.63 1.65 1.25 1.29 1.30 1.39 1.39
book2 1.40 1.55 1.57 1.83 1.86 1.87 1.42 1.64 1.66 1.31 1.31 1.33 1.43 1.43
geo 1.20 1.25 1.26 1.36 1.37 1.37 1.22 1.31 1.33 1.06 1.19 1.16 1.19 1.17
news 1.47 1.59 1.61 1.81 1.84 1.85 1.48 1.67 1.69 1.37 1.39 1.41 1.49 1.49
obj1 1.73 1.79 1.81 1.82 1.84 1.85 1.73 1.86 1.87 1.60 1.66 1.68 1.70 1.73
obj2 1.94 2.08 2.12 2.08 2.12 2.15 1.89 2.19 2.21 1.76 1.81 1.84 1.92 1.93
paper1 1.54 1.73 1.77 1.92 1.98 1.99 1.54 1.84 1.86 1.44 1.40 1.45 1.57 1.57
paper2 1.49 1.68 1.72 1.89 1.95 1.97 1.49 1.80 1.82 1.38 1.38 1.39 1.51 1.51
paper3 1.45 1.62 1.66 1.83 1.89 1.90 1.45 1.73 1.75 1.33 1.33 1.36 1.47 1.47
paper4 1.53 1.69 1.72 1.89 1.95 1.97 1.51 1.80 1.82 1.40 1.36 1.43 1.53 1.54
paper5 1.57 1.73 1.77 1.91 1.97 1.99 1.55 1.84 1.86 1.45 1.34 1.45 1.58 1.58
paper6 1.60 1.78 1.81 1.96 2.02 2.04 1.59 1.89 1.91 1.47 1.44 1.50 1.62 1.62
pic 5.71 5.93 5.99 7.18 7.18 7.45 5.98 7.41 7.56 5.35 5.52 5.69 5.81 3.12
progc 1.75 1.88 1.92 2.04 2.10 2.12 1.69 1.99 2.01 1.57 1.57 1.62 1.74 1.75
progl 2.16 2.36 2.44 2.59 2.69 2.75 2.05 2.55 2.58 1.94 1.90 1.97 2.13 2.18
progp 2.18 2.35 2.42 2.52 2.60 2.66 2.10 2.54 2.55 1.96 1.99 2.01 2.14 2.20
trans 1.87 2.02 2.07 2.22 2.28 2.31 1.86 2.16 2.18 1.73 1.74 1.78 1.89 1.89
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.86 2.01 2.05 2.25 2.30 2.33 1.86 2.20 2.23 1.71 1.72 1.77 1.87 1.73
! !! !!!

2. Compression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.49 0.32 0.24 0.34 0.30 0.28 0.84 0.34 0.27 0.60 0.40 0.47 0.27 0.39
book1 0.44 0.26 0.20 0.31 0.27 0.26 0.79 0.31 0.24 0.52 0.38 0.43 0.25 0.36
book2 0.47 0.31 0.26 0.34 0.30 0.29 0.82 0.35 0.29 0.58 0.39 0.44 0.24 0.38
geo 0.40 0.25 0.14 0.22 0.21 0.20 0.71 0.23 0.09 0.50 0.35 0.41 0.19 0.33
news 0.49 0.32 0.27 0.33 0.30 0.27 0.84 0.36 0.30 0.60 0.41 0.47 0.25 0.40
obj1 0.59 0.41 0.27 0.27 0.26 0.22 0.92 0.29 0.15 0.70 0.48 0.56 0.27 0.46
obj2 0.63 0.41 0.26 0.29 0.28 0.23 0.98 0.35 0.25 0.71 0.51 0.61 0.34 0.48
paper1 0.50 0.31 0.24 0.34 0.30 0.27 0.86 0.35 0.28 0.60 0.42 0.48 0.29 0.40
paper2 0.47 0.28 0.22 0.33 0.29 0.27 0.83 0.33 0.26 0.56 0.40 0.46 0.28 0.38
paper3 0.47 0.28 0.22 0.33 0.29 0.27 0.82 0.33 0.26 0.55 0.39 0.45 0.27 0.37
paper4 0.49 0.30 0.23 0.33 0.29 0.27 0.84 0.34 0.27 0.58 0.41 0.47 0.28 0.39
paper5 0.51 0.32 0.25 0.34 0.29 0.27 0.86 0.36 0.29 0.60 0.41 0.48 0.29 0.40
paper6 0.52 0.32 0.25 0.34 0.30 0.27 0.87 0.35 0.28 0.60 0.43 0.49 0.30 0.41
pic 1.45 1.03 0.48 0.60 0.64 0.26 1.39 0.14 0.07 1.90 1.16 1.24 0.99 1.03
progc 0.57 0.36 0.27 0.33 0.30 0.26 0.92 0.38 0.30 0.65 0.46 0.53 0.31 0.44
progl 0.67 0.42 0.29 0.40 0.35 0.29 1.02 0.37 0.30 0.77 0.54 0.62 0.40 0.50
progp 0.68 0.43 0.27 0.38 0.34 0.25 1.04 0.37 0.28 0.76 0.55 0.64 0.41 0.50
trans 0.61 0.41 0.28 0.36 0.33 0.28 0.96 0.38 0.30 0.72 0.50 0.58 0.33 0.47
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.58 0.38 0.26 0.34 0.31 0.26 0.91 0.33 0.25 0.69 0.48 0.55 0.33 0.45
! !!! !!

3. Critical disk write rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.15 0.12 0.10 0.15 0.14 0.13 0.27 0.14 0.12 0.17 0.11 0.13 0.09 0.13
book1 0.12 0.09 0.07 0.13 0.12 0.12 0.22 0.12 0.09 0.10 0.09 0.10 0.07 0.10
book2 0.13 0.11 0.09 0.15 0.14 0.13 0.24 0.14 0.12 0.14 0.09 0.11 0.07 0.11
geo 0.07 0.05 0.03 0.06 0.06 0.05 0.13 0.05 0.02 0.03 0.06 0.06 0.03 0.05
news 0.16 0.12 0.10 0.15 0.14 0.12 0.27 0.14 0.12 0.16 0.12 0.14 0.08 0.13
obj1 0.25 0.18 0.12 0.12 0.12 0.10 0.39 0.13 0.07 0.26 0.19 0.23 0.11 0.19
obj2 0.31 0.21 0.14 0.15 0.15 0.12 0.46 0.19 0.14 0.31 0.23 0.28 0.16 0.23
paper1 0.18 0.13 0.10 0.16 0.15 0.13 0.30 0.16 0.13 0.18 0.12 0.15 0.11 0.15
paper2 0.15 0.11 0.09 0.16 0.14 0.13 0.27 0.15 0.12 0.15 0.11 0.13 0.09 0.13
paper3 0.15 0.11 0.09 0.15 0.14 0.13 0.25 0.14 0.11 0.14 0.10 0.12 0.09 0.12
paper4 0.17 0.12 0.10 0.16 0.14 0.13 0.28 0.15 0.12 0.17 0.11 0.14 0.10 0.14
paper5 0.19 0.14 0.11 0.16 0.14 0.13 0.31 0.16 0.13 0.19 0.10 0.15 0.11 0.15
paper6 0.19 0.14 0.11 0.17 0.15 0.14 0.32 0.16 0.13 0.19 0.13 0.16 0.11 0.16
pic 1.20 0.86 0.40 0.52 0.55 0.23 1.16 0.12 0.06 1.54 0.95 1.02 0.82 0.70
progc 0.24 0.17 0.13 0.17 0.16 0.14 0.38 0.19 0.15 0.24 0.17 0.20 0.13 0.19
progl 0.36 0.24 0.17 0.25 0.22 0.18 0.52 0.22 0.18 0.37 0.26 0.31 0.21 0.27
progp 0.37 0.25 0.16 0.23 0.21 0.16 0.54 0.22 0.17 0.37 0.27 0.32 0.22 0.27
trans 0.28 0.21 0.14 0.20 0.19 0.16 0.44 0.20 0.16 0.30 0.21 0.25 0.16 0.22
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.26 0.19 0.13 0.18 0.17 0.14 0.38 0.16 0.12 0.28 0.19 0.22 0.15 0.19
! !!! !!

4. Decompression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.69 1.80 1.83 1.19 1.19 1.20 1.11 1.31 1.40 1.88 0.87 1.25 1.89 1.32
book1 1.58 1.70 1.73 1.15 1.15 1.16 0.99 1.17 1.26 1.54 0.80 1.14 1.69 1.17
book2 1.65 1.73 1.75 1.19 1.19 1.19 1.07 1.24 1.31 1.93 0.85 1.21 1.88 1.26
geo 1.50 1.54 1.56 0.95 0.95 0.95 1.10 1.15 1.20 1.91 0.80 1.08 1.59 1.10
news 1.72 1.80 1.81 1.18 1.18 1.18 1.16 1.31 1.38 2.00 0.89 1.26 1.93 1.33
obj1 2.04 2.08 2.10 1.13 1.13 1.13 1.57 1.70 1.75 2.29 1.04 1.50 2.08 1.65
obj2 2.07 2.15 2.18 1.17 1.17 1.18 1.52 1.76 1.82 2.04 1.05 1.55 2.10 1.73
paper1 1.72 1.85 1.87 1.19 1.20 1.20 1.12 1.34 1.42 1.75 0.90 1.26 1.86 1.35
paper2 1.65 1.78 1.81 1.18 1.18 1.19 1.05 1.27 1.36 1.60 0.84 1.20 1.77 1.26
paper3 1.63 1.75 1.78 1.16 1.17 1.17 1.04 1.24 1.33 1.63 0.86 1.19 1.76 1.24
paper4 1.70 1.80 1.83 1.16 1.16 1.16 1.09 1.30 1.39 1.68 0.91 1.23 1.82 1.31
paper5 1.73 1.83 1.85 1.18 1.18 1.18 1.13 1.35 1.43 1.72 0.99 1.26 1.84 1.35
paper6 1.76 1.87 1.89 1.19 1.20 1.20 1.15 1.36 1.45 1.74 0.91 1.29 1.88 1.37
pic 4.08 4.14 4.12 2.43 2.37 2.44 3.60 4.38 4.64 4.32 2.56 3.58 4.10 4.07
progc 1.88 1.96 1.98 1.20 1.21 1.21 1.27 1.48 1.56 1.89 0.95 1.38 1.98 1.53
progl 0.78 2.22 2.25 1.36 1.37 1.38 1.43 1.77 1.85 2.09 1.10 1.60 2.23 1.79
progp 2.11 2.19 2.22 1.31 1.31 1.33 1.49 1.78 1.85 2.02 1.07 1.62 2.20 1.83
trans 1.98 2.06 2.09 1.29 1.29 1.30 1.40 1.63 1.71 2.17 1.05 1.51 2.18 1.64
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.85 2.01 2.04 1.26 1.26 1.26 1.35 1.59 1.67 2.01 1.02 1.45 2.04 1.57
!! ! !!!

5. Critical disk read rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.52 0.68 0.73 0.54 0.56 0.57 0.36 0.56 0.61 0.52 0.23 0.36 0.64 0.43
book1 0.44 0.59 0.62 0.50 0.51 0.52 0.28 0.45 0.50 0.31 0.18 0.26 0.47 0.33
book2 0.47 0.61 0.64 0.54 0.55 0.55 0.32 0.48 0.52 0.46 0.20 0.30 0.57 0.38
geo 0.25 0.31 0.32 0.25 0.26 0.26 0.20 0.27 0.30 0.11 0.13 0.15 0.25 0.16
news 0.55 0.67 0.69 0.53 0.54 0.54 0.38 0.53 0.56 0.54 0.25 0.37 0.63 0.44
obj1 0.86 0.92 0.94 0.51 0.52 0.52 0.66 0.79 0.81 0.86 0.41 0.61 0.86 0.70
obj2 1.00 1.12 1.15 0.61 0.62 0.63 0.72 0.96 1.00 0.88 0.47 0.71 1.01 0.83
paper1 0.60 0.78 0.81 0.57 0.59 0.60 0.39 0.61 0.66 0.53 0.26 0.39 0.68 0.49
paper2 0.54 0.72 0.76 0.56 0.57 0.59 0.35 0.56 0.61 0.44 0.23 0.34 0.60 0.43
paper3 0.51 0.67 0.71 0.53 0.55 0.55 0.32 0.52 0.57 0.40 0.21 0.32 0.56 0.40
paper4 0.59 0.73 0.77 0.55 0.57 0.57 0.37 0.58 0.63 0.48 0.24 0.37 0.63 0.46
paper5 0.63 0.77 0.80 0.56 0.58 0.59 0.40 0.62 0.66 0.53 0.25 0.39 0.68 0.50
paper6 0.66 0.82 0.85 0.58 0.61 0.61 0.43 0.64 0.69 0.56 0.28 0.43 0.72 0.52
pic 3.37 3.44 3.43 2.09 2.04 2.11 3.00 3.79 4.03 3.51 2.10 2.95 3.39 2.77
progc 0.81 0.92 0.95 0.61 0.63 0.64 0.52 0.74 0.78 0.69 0.34 0.53 0.84 0.66
progl 0.42 1.28 1.33 0.83 0.86 0.88 0.73 1.08 1.13 1.01 0.52 0.79 1.18 0.97
progp 1.14 1.26 1.30 0.79 0.81 0.83 0.78 1.08 1.12 0.99 0.53 0.81 1.17 1.00
trans 0.92 1.04 1.08 0.71 0.72 0.74 0.65 0.88 0.93 0.92 0.45 0.66 1.03 0.77
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.79 0.96 0.99 0.66 0.67 0.68 0.60 0.84 0.89 0.76 0.40 0.60 0.88 0.68
!! !!! !

**** BLOCK_SIZE = 1Kbytes (2 sectors) ****

1. Compression ratio [x.yy:1]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.37 1.46 1.49 1.69 1.71 1.72 1.39 1.57 1.58 1.29 1.31 1.34 1.40 1.38
book1 1.33 1.42 1.43 1.68 1.71 1.71 1.33 1.51 1.52 1.19 1.26 1.27 1.32 1.33
book2 1.34 1.41 1.42 1.72 1.73 1.74 1.35 1.49 1.50 1.23 1.27 1.28 1.34 1.34
geo 1.18 1.21 1.23 1.29 1.30 1.30 1.22 1.29 1.30 1.05 1.19 1.17 1.16 1.16
news 1.38 1.44 1.45 1.67 1.69 1.69 1.38 1.51 1.52 1.27 1.32 1.33 1.38 1.38
obj1 1.67 1.71 1.73 1.73 1.74 1.75 1.67 1.78 1.79 1.55 1.61 1.62 1.65 1.66
obj2 1.80 1.89 1.92 1.85 1.87 1.89 1.76 1.99 1.99 1.64 1.71 1.72 1.78 1.78
paper1 1.45 1.56 1.57 1.77 1.80 1.81 1.45 1.65 1.66 1.33 1.36 1.38 1.46 1.46
paper2 1.42 1.53 1.54 1.76 1.80 1.81 1.41 1.62 1.64 1.29 1.33 1.34 1.41 1.42
paper3 1.39 1.49 1.51 1.73 1.76 1.77 1.38 1.58 1.59 1.26 1.31 1.32 1.38 1.39
paper4 1.46 1.56 1.57 1.79 1.83 1.84 1.44 1.65 1.66 1.32 1.32 1.38 1.45 1.46
paper5 1.48 1.57 1.59 1.78 1.81 1.82 1.46 1.66 1.68 1.35 1.34 1.39 1.47 1.47
paper6 1.51 1.61 1.63 1.83 1.86 1.87 1.50 1.71 1.72 1.38 1.42 1.43 1.51 1.51
pic 5.40 5.56 5.59 6.34 6.30 6.53 5.65 6.85 6.96 5.13 5.37 5.35 5.53 2.96
progc 1.63 1.72 1.73 1.88 1.91 1.92 1.59 1.80 1.81 1.48 1.51 1.54 1.62 1.63
progl 1.93 2.05 2.09 2.26 2.33 2.36 1.86 2.19 2.20 1.74 1.77 1.80 1.91 1.93
progp 1.96 2.07 2.11 2.21 2.26 2.30 1.91 2.21 2.22 1.77 1.84 1.84 1.94 1.97
trans 1.69 1.77 1.80 1.95 1.99 2.00 1.68 1.87 1.89 1.55 1.61 1.62 1.70 1.68
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.74 1.84 1.85 2.05 2.08 2.10 1.75 2.00 2.01 1.60 1.66 1.67 1.74 1.61
! !! !!!

2. Compression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.47 0.34 0.29 0.28 0.26 0.25 0.77 0.36 0.30 0.59 0.37 0.42 0.24 0.37
book1 0.43 0.29 0.26 0.28 0.25 0.25 0.73 0.33 0.28 0.53 0.35 0.39 0.24 0.35
book2 0.45 0.33 0.31 0.29 0.27 0.26 0.75 0.36 0.31 0.57 0.35 0.40 0.23 0.37
geo 0.40 0.27 0.16 0.19 0.18 0.18 0.68 0.24 0.13 0.51 0.33 0.38 0.19 0.32
news 0.47 0.34 0.32 0.27 0.26 0.25 0.76 0.37 0.32 0.59 0.37 0.41 0.23 0.37
obj1 0.57 0.42 0.32 0.24 0.22 0.20 0.85 0.38 0.27 0.70 0.44 0.50 0.27 0.45
obj2 0.59 0.41 0.29 0.24 0.23 0.20 0.88 0.38 0.30 0.69 0.46 0.52 0.32 0.44
paper1 0.48 0.33 0.30 0.28 0.26 0.25 0.78 0.36 0.31 0.58 0.38 0.42 0.26 0.38
paper2 0.46 0.31 0.27 0.29 0.26 0.25 0.76 0.35 0.29 0.56 0.37 0.41 0.26 0.36
paper3 0.45 0.31 0.28 0.28 0.26 0.25 0.75 0.35 0.29 0.55 0.37 0.40 0.25 0.36
paper4 0.48 0.32 0.29 0.29 0.26 0.25 0.77 0.36 0.30 0.57 0.38 0.42 0.26 0.37
paper5 0.49 0.34 0.30 0.28 0.26 0.25 0.79 0.37 0.32 0.59 0.37 0.42 0.27 0.38
paper6 0.50 0.34 0.30 0.29 0.26 0.25 0.80 0.37 0.31 0.59 0.39 0.43 0.27 0.38
pic 1.34 0.98 0.45 0.53 0.51 0.23 1.26 0.17 0.10 1.89 0.98 0.98 0.92 0.91
progc 0.54 0.38 0.32 0.28 0.26 0.24 0.84 0.39 0.33 0.64 0.42 0.47 0.29 0.41
progl 0.61 0.42 0.33 0.32 0.29 0.27 0.90 0.40 0.33 0.72 0.48 0.52 0.35 0.45
progp 0.63 0.43 0.31 0.30 0.28 0.23 0.93 0.39 0.30 0.72 0.49 0.54 0.36 0.45
trans 0.56 0.40 0.32 0.29 0.27 0.25 0.85 0.38 0.33 0.68 0.44 0.49 0.30 0.42
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.55 0.39 0.30 0.29 0.27 0.24 0.83 0.35 0.28 0.68 0.43 0.47 0.31 0.42
! !!! !!

3. Critical disk write rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.13 0.11 0.10 0.11 0.11 0.10 0.22 0.13 0.11 0.13 0.09 0.11 0.07 0.10
book1 0.11 0.09 0.08 0.11 0.10 0.10 0.18 0.11 0.10 0.08 0.07 0.08 0.06 0.09
book2 0.11 0.10 0.09 0.12 0.11 0.11 0.19 0.12 0.10 0.11 0.07 0.09 0.06 0.09
geo 0.06 0.05 0.03 0.04 0.04 0.04 0.12 0.05 0.03 0.02 0.05 0.06 0.03 0.04
news 0.13 0.10 0.10 0.11 0.11 0.10 0.21 0.12 0.11 0.13 0.09 0.10 0.06 0.10
obj1 0.23 0.17 0.14 0.10 0.09 0.09 0.34 0.17 0.12 0.25 0.17 0.19 0.11 0.18
obj2 0.26 0.19 0.14 0.11 0.11 0.09 0.38 0.19 0.15 0.27 0.19 0.22 0.14 0.19
paper1 0.15 0.12 0.11 0.12 0.12 0.11 0.24 0.14 0.12 0.14 0.10 0.12 0.08 0.12
paper2 0.14 0.11 0.09 0.13 0.12 0.11 0.22 0.13 0.11 0.13 0.09 0.10 0.08 0.11
paper3 0.13 0.10 0.09 0.12 0.11 0.11 0.21 0.13 0.11 0.11 0.09 0.10 0.07 0.10
paper4 0.15 0.11 0.11 0.13 0.12 0.11 0.24 0.14 0.12 0.14 0.09 0.12 0.08 0.12
paper5 0.16 0.12 0.11 0.12 0.12 0.11 0.25 0.15 0.13 0.15 0.09 0.12 0.09 0.12
paper6 0.17 0.13 0.12 0.13 0.12 0.12 0.27 0.15 0.13 0.16 0.12 0.13 0.09 0.13
pic 1.09 0.80 0.37 0.45 0.43 0.19 1.04 0.15 0.09 1.52 0.80 0.80 0.75 0.60
progc 0.21 0.16 0.14 0.13 0.12 0.11 0.31 0.17 0.15 0.21 0.14 0.16 0.11 0.16
progl 0.29 0.22 0.17 0.18 0.17 0.16 0.42 0.22 0.18 0.31 0.21 0.23 0.17 0.22
progp 0.31 0.22 0.16 0.16 0.16 0.13 0.44 0.21 0.16 0.31 0.22 0.25 0.17 0.22
trans 0.23 0.17 0.14 0.14 0.13 0.13 0.34 0.18 0.16 0.24 0.17 0.19 0.12 0.17
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.23 0.17 0.13 0.14 0.13 0.11 0.31 0.15 0.12 0.25 0.16 0.17 0.13 0.16
! !!! !!

4. Decompression rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 1.66 1.72 1.74 0.90 0.90 0.90 1.12 1.27 1.33 2.10 0.86 1.21 1.89 1.28
book1 1.56 1.64 1.65 0.90 0.89 0.89 1.01 1.14 1.21 1.72 0.80 1.12 1.72 1.15
book2 1.62 1.67 1.67 0.91 0.91 0.91 1.09 1.20 1.26 2.18 0.84 1.18 1.88 1.23
geo 1.49 1.51 1.52 0.72 0.72 0.72 1.10 1.13 1.17 2.13 0.79 1.08 1.61 1.10
news 1.67 1.71 1.72 0.89 0.89 0.89 1.16 1.26 1.32 2.20 0.87 1.21 1.91 1.28
obj1 2.00 2.03 2.05 0.85 0.85 0.85 1.55 1.67 1.71 2.41 1.02 1.46 2.06 1.62
obj2 1.99 2.05 2.07 0.84 0.84 0.84 1.48 1.67 1.71 2.09 1.01 1.48 2.03 1.64
paper1 1.68 1.76 1.76 0.90 0.90 0.90 1.12 1.27 1.34 1.90 0.87 1.22 1.86 1.30
paper2 1.63 1.70 1.71 0.90 0.90 0.90 1.05 1.21 1.28 1.77 0.83 1.18 1.79 1.23
paper3 1.61 1.68 1.69 0.89 0.89 0.89 1.05 1.19 1.26 1.80 0.83 1.16 1.79 1.21
paper4 1.67 1.74 1.75 0.91 0.91 0.91 1.09 1.25 1.33 1.83 0.91 1.21 1.83 1.28
paper5 1.69 1.76 1.76 0.89 0.89 0.89 1.13 1.29 1.37 1.88 0.90 1.22 1.85 1.31
paper6 1.72 1.79 1.79 0.91 0.91 0.91 1.15 1.31 1.38 1.91 0.88 1.25 1.88 1.33
pic 3.89 3.93 3.89 1.62 1.59 1.63 3.49 4.16 4.39 4.32 2.47 3.38 3.93 3.92
progc 1.83 1.88 1.89 0.90 0.90 0.91 1.27 1.43 1.49 2.02 0.94 1.34 1.97 1.47
progl 2.00 2.06 2.09 0.99 0.99 1.00 1.38 1.62 1.69 2.14 1.04 1.50 2.14 1.65
progp 2.01 2.06 2.08 0.96 0.96 0.97 1.43 1.64 1.70 2.06 1.03 1.52 2.12 1.71
trans 1.88 1.93 1.95 0.93 0.93 0.94 1.35 1.52 1.58 2.27 0.99 1.40 2.11 1.53
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 1.87 1.92 1.93 0.93 0.93 0.94 1.33 1.51 1.59 2.15 0.99 1.39 2.02 1.51
! !!! !!

5. Critical disk read rate [Mbytes/sec]:

File S3/1 S3/5 S3/9 S4/1 S4/5 S4/9 JAM0 JAM1 JAM2 SSTR SSDS DSP DRSP XTRA
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
bib 0.45 0.54 0.57 0.37 0.37 0.38 0.31 0.46 0.49 0.47 0.20 0.31 0.54 0.35
book1 0.39 0.49 0.50 0.36 0.37 0.37 0.25 0.39 0.41 0.27 0.17 0.24 0.42 0.29
book2 0.41 0.49 0.49 0.38 0.38 0.39 0.28 0.39 0.42 0.41 0.18 0.26 0.48 0.31
geo 0.23 0.26 0.28 0.16 0.17 0.17 0.20 0.25 0.27 0.10 0.13 0.16 0.22 0.15
news 0.46 0.52 0.53 0.36 0.36 0.36 0.32 0.43 0.45 0.47 0.21 0.30 0.53 0.35
obj1 0.80 0.84 0.87 0.36 0.36 0.36 0.62 0.73 0.75 0.86 0.39 0.56 0.81 0.64
obj2 0.88 0.97 0.99 0.39 0.39 0.40 0.64 0.83 0.85 0.82 0.42 0.62 0.89 0.72
paper1 0.52 0.63 0.64 0.39 0.40 0.40 0.35 0.50 0.53 0.47 0.23 0.34 0.59 0.41
paper2 0.48 0.59 0.60 0.39 0.40 0.40 0.31 0.46 0.50 0.40 0.21 0.30 0.52 0.36
paper3 0.45 0.55 0.57 0.38 0.38 0.39 0.29 0.44 0.47 0.37 0.20 0.28 0.49 0.34
paper4 0.53 0.62 0.64 0.40 0.41 0.42 0.33 0.49 0.53 0.44 0.22 0.33 0.57 0.40
paper5 0.55 0.64 0.65 0.39 0.40 0.40 0.36 0.51 0.55 0.49 0.23 0.34 0.59 0.42
paper6 0.58 0.68 0.69 0.41 0.42 0.42 0.38 0.54 0.58 0.53 0.26 0.38 0.63 0.45
pic 3.17 3.22 3.19 1.36 1.34 1.38 2.87 3.55 3.76 3.48 2.01 2.75 3.22 2.60
progc 0.71 0.79 0.80 0.42 0.43 0.44 0.47 0.64 0.67 0.66 0.32 0.47 0.75 0.57
progl 0.96 1.06 1.09 0.55 0.57 0.58 0.64 0.88 0.92 0.91 0.45 0.67 1.02 0.80
progp 0.98 1.06 1.09 0.53 0.54 0.55 0.68 0.90 0.93 0.90 0.47 0.69 1.03 0.84
trans 0.77 0.84 0.87 0.45 0.46 0.47 0.55 0.71 0.74 0.81 0.38 0.54 0.87 0.62
--------+----+----+----+----+----+----+----+----+----+----+----+----+----+----
Average: 0.74 0.82 0.84 0.45 0.45 0.46 0.55 0.73 0.77 0.71 0.37 0.53 0.79 0.59
!! !!! !

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