What's new after 7-Zip 4.57:
- Some speed optimizations.
- 7-Zip now can unpack multivolume RAR archives created with
"old style volume names" scheme and names *.001, *.002, ...
- Some bugs were fixed.
- New localizations: Punjabi (Indian), Pashto.
7-Zip 4.58 alpha 4 also fixes some bugs of version 4.58 alpha 3.
Don't use this alpha version for important data. Call "Test" command after each compressing operation.
You can post some benchmark results here for 7-Zip 4.57 / 4.58. Just call:
7z b
Write also some information about your CPU: CPU Type/Frequency.
Notes: LZMA decoder was rewritten. So please try "test" command for your .7z archives.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Processors Information
------------------------------------------------------------------------------------
Processor 1 (ID = 0)
Number of cores 2 (max 2)
Number of threads 2 (max 2)
Name Intel Core 2 Duo E6550
Codename Conroe
Specification Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz
Package Socket 775 LGA (platform ID = 0h)
CPUID 6.F.B
Extended CPUID 6.F
Core Stepping G0
Technology 65 nm
Core Speed 2658.6 MHz (7.0 x 379.8 MHz)
Rated Bus speed 1519.2 MHz
Stock frequency 2333 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4096 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 7.0x
max VID 1.350 V
Features XD, VT
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Anonymous
-
2008-02-26
ipavlov 2 issues. First of all please associate 7zip with only .rar file extension not r01, r02 etc because in a multipart archive icons for all files are the same and if you click any other file (r20 etc) to extract only the part in that file is extracted. Also .0001 extension needs to be associated with 7z when selecting rar
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Igor, if it's possible please add small change to archive information dialog. In the field "Packed Size: xxxxxxxx bytes" it will be nice to see "Packed Size: xxxxxxxx bytes(<compression ratio in format #0[.00]>%)".
Best regards,
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Some combinations of 65nm AMD K8 CPU + some motherboards + some versions of BIOS give very bad results for random memory access (some TLB problem). So the compression speed can be very low. That performance loss is similar to performance loss of AMD K10 with BIOS TLB Patch.
For example, look at WinRar's results of Athlon 64 X2 here: http://www.hwupgrade.it/articoli/cpu/1826/comparativa-tra-cpu-48-processori-a-confronto_4.html
does this CPU really run at 2.1 GHZ? check with CPU-Z: http://www.cpuid.com/cpuz.php
If BIOS settings are wrong, it's possible that this CPU only wors at 1750 MHZ or something like that.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
tested with
AMD Athlon XP (Palomino) 1700+ at 1466,5 real clocks
Microsoft Windows XP [Version 5.1.2600], SP3 RC1
(C) Copyright 1985-2001 Microsoft Corp.
C:\Windows\Temp\7-Zip>7z b
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
7-Zip 4.58 alpha 4 was released.
7-Zip for 32-bit Windows:
http://www.7-zip.org/alpha/7z458a4.exe
7-Zip for 64-bit Windows x64:
http://www.7-zip.org/alpha/7z458a4-x64.msi
What's new after 7-Zip 4.57:
- Some speed optimizations.
- 7-Zip now can unpack multivolume RAR archives created with
"old style volume names" scheme and names *.001, *.002, ...
- Some bugs were fixed.
- New localizations: Punjabi (Indian), Pashto.
7-Zip 4.58 alpha 4 also fixes some bugs of version 4.58 alpha 3.
Don't use this alpha version for important data. Call "Test" command after each compressing operation.
You can post some benchmark results here for 7-Zip 4.57 / 4.58. Just call:
7z b
Write also some information about your CPU: CPU Type/Frequency.
Notes: LZMA decoder was rewritten. So please try "test" command for your .7z archives.
Processors Information
------------------------------------------------------------------------------------
Processor 1 (ID = 0)
Number of cores 2 (max 2)
Number of threads 2 (max 2)
Name Intel Core 2 Duo E6550
Codename Conroe
Specification Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz
Package Socket 775 LGA (platform ID = 0h)
CPUID 6.F.B
Extended CPUID 6.F
Core Stepping G0
Technology 65 nm
Core Speed 2658.6 MHz (7.0 x 379.8 MHz)
Rated Bus speed 1519.2 MHz
Stock frequency 2333 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4096 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 7.0x
max VID 1.350 V
Features XD, VT
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 2047 MB, # CPU hardware threads: 2
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 3025 126 2333 2943 | 38031 186 2109 3917
23: 2951 123 2447 3007 | 35357 179 2060 3691
24: 2868 129 2397 3084 | 34973 180 2050 3699
25: 2794 129 2478 3190 | 34259 182 2016 3671
----------------------------------------------------------------
Avr: 127 2414 3056 182 2059 3744
Tot: 154 2236 3400
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 2047 MB, # CPU hardware threads: 2
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 3132 133 2292 3047 | 45714 176 2679 4708
23: 3241 137 2403 3302 | 44856 186 2520 4683
24: 3219 141 2460 3461 | 44418 189 2490 4697
25: 3117 140 2544 3559 | 43932 181 2602 4707
----------------------------------------------------------------
Avr: 138 2425 3342 183 2573 4699
Tot: 160 2499 4021
AMD K7 Barton XP-3200+ (2,2 GHZ), Nforce2 Ultra400, 2*512MB DDR1-400 Dualchannel, OS=W2K
C:\Programme\7-Zip>start /B /HIGH 7z b -mmt2
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 1023 MB, # CPU hardware threads: 1
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 1487 99 1455 1446 | 18513 99 1926 1906
23: 1405 99 1443 1431 | 18081 99 1898 1887
24: 1314 99 1425 1412 | 17691 98 1906 1871
25: 1223 99 1417 1397 | 17632 99 1905 1889
----------------------------------------------------------------
Avr: 99 1435 1422 99 1909 1888
Tot: 99 1672 1655
H:\tmp>start /B /HIGH 7z.exe b -mmt2
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 1023 MB, # CPU hardware threads: 1
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 1566 99 1532 1523
H:\tmp> | 21498 100 2225 2214
23: 1492 99 1533 1520 | 21229 100 2226 2216
24: 1386 100 1495 1491 | 20968 100 2226 2217
25: 1293 100 1482 1476 | 20601 100 2218 2207
----------------------------------------------------------------
Avr: 99 1511 1503 100 2224 2214
Tot: 100 1867 1858
AM2 X2-4600+ (@stock speed 2,4 GHZ ), 2 GB DDR2-800 dualchannel RAM, OS=XP-x64
C:\temp\457>7z b -mmt4
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 2047 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 3697 194 1849 3597 | 44484 200 2295 4579
23: 3631 196 1888 3699 | 43927 200 2297 4583
24: 3496 199 1887 3759 | 43593 200 2304 4609
25: 3362 198 1942 3838 | 42884 200 2302 4594
----------------------------------------------------------------
Avr: 197 1892 3723 200 2299 4591
Tot: 198 2096 4157
C:\Program Files\7-Zip>7z b -mmt4
7-Zip [64] 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 2047 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 4260 197 2105 4144 | 48538 200 2501 4996
23: 4348 200 2220 4430 | 47676 199 2496 4975
24: 4041 198 2199 4345 | 47203 200 2498 4991
25: 3909 198 2253 4463 | 46432 199 2498 4974
----------------------------------------------------------------
Avr: 198 2194 4345 199 2498 4984
Tot: 199 2346 4665
C:\temp\458a4>7z.exe b -mmt4
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 2047 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 4003 200 1947 3894 | 51876 200 2669 5339
23: 3871 199 1979 3944 | 51129 199 2675 5335
24: 3746 200 2015 4027 | 50484 200 2669 5338
25: 3585 200 2048 4093 | 49739 200 2666 5328
----------------------------------------------------------------
Avr: 200 1997 3990 200 2670 5335
Tot: 200 2334 4662
C:\Program Files\7-Zip>7z.exe b -mmt4
7-Zip [64] 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 2047 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 4473 199 2185 4351 | 55706 200 2871 5734
23: 4330 199 2220 4412 | 54978 199 2876 5737
24: 4168 199 2250 4482 | 53848 199 2857 5693
25: 3938 199 2256 4496 | 53197 200 2855 5699
----------------------------------------------------------------
Avr: 199 2228 4435 199 2865 5716
Tot: 199 2546 5075
http://sourceforge.net/forum/message.php?msg_id=4695063 - some benchmarks there.
And for new version (tested 4.58 alpha 4 x64 under Vista Ultimate x64 SP1 RTM on C2Quad 2.4@3.0/4GB DDR2-800 5-5-5-15):
>7z b -mmt8
7-Zip [64] 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 4094 MB, # CPU hardware threads: 4
RAM usage: 1701 MB, # Benchmark threads: 8
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 9696 358 2633 9433 | 122088 363 3461 12562
23: 9667 378 2604 9849 | 130044 392 3456 13566
24: 9088 372 2630 9772 | 127801 392 3451 13511
25: 8871 382 2648 10128 | 124108 389 3413 13295
----------------------------------------------------------------
Avr: 373 2629 9795 384 3445 13233
Tot: 378 3037 11514
Best regards,
ipavlov 2 issues. First of all please associate 7zip with only .rar file extension not r01, r02 etc because in a multipart archive icons for all files are the same and if you click any other file (r20 etc) to extract only the part in that file is extracted. Also .0001 extension needs to be associated with 7z when selecting rar
P4-M 1.8/512M DDR1-266 6-3-3-2.5/Windows 2000 Pro SP4
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 510 MB, # CPU hardware threads: 1
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 792 96 800 771 | 8497 99 881 875
23: 798 98 827 813 | 8417 100 882 878
24: 779 99 850 837 | 8311 100 881 879
25: 743 97 875 849 | 8227 100 882 881
----------------------------------------------------------------
Avr: 98 838 818 100 882 878
Tot: 99 860 848
Some Benchmarks:
######_ Pentium M 1,7GHz (Dothan) / 2x512MB DDR-333 _######
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 1023 MB, # CPU hardware threads: 1
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 1408 100 1374 1369 | 14138 100 1456 1456
23: 1383 100 1411 1409 | 14011 100 1464 1462
24: 1334 100 1441 1434 | 13825 100 1462 1462
25: 1294 99 1485 1477 | 13641 100 1462 1461
----------------------------------------------------------------
Avr: 100 1428 1422 100 1461 1460
Tot: 100 1444 1441
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 1023 MB, # CPU hardware threads: 1
RAM usage: 425 MB, # Benchmark threads: 2
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 1432 100 1398 1393 | 16479 100 1699 1697
23: 1395 99 1433 1421 | 16269 100 1700 1698
24: 1369 100 1479 1472 | 16054 100 1698 1698
25: 1317 99 1516 1504 | 15799 100 1693 1692
----------------------------------------------------------------
Avr: 99 1456 1448 100 1697 1696
Tot: 100 1577 1572
######_ Core Duo T2250 / 2x1GB DDR2-667 _######
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 2037 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 2716 198 1331 2642 | 29013 198 1506 2986
23: 2628 198 1354 2678 | 28433 197 1504 2967
24: 2545 198 1382 2737 | 28145 199 1497 2976
25: 2440 197 1413 2786 | 27770 199 1495 2975
----------------------------------------------------------------
Avr: 198 1370 2711 198 1501 2976
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 2037 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 2802 197 1385 2726 | 33967 199 1758 3496
23: 2688 199 1378 2739 | 33312 198 1755 3476
24: 2589 198 1405 2784 | 32896 199 1744 3478
25: 2477 198 1428 2829 | 32204 198 1740 3450
----------------------------------------------------------------
Avr: 198 1399 2769 199 1749 3475
Tot: 198 1574 3122
######_ Core 2 Duo E6400 / 2x1GB DDR2-800 _######
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 2046 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 4038 199 1972 3928 | 40119 199 2078 4129
23: 3920 198 2019 3994 | 39528 199 2073 4124
24: 3785 197 2063 4070 | 38976 199 2072 4121
25: 3625 197 2105 4139 | 38497 199 2074 4124
----------------------------------------------------------------
Avr: 198 2040 4033 199 2074 4125
Tot: 198 2057 4079
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 2046 MB, # CPU hardware threads: 2
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 4070 198 1995 3959 | 46974 198 2436 4835
23: 3920 198 2015 3994 | 46244 198 2439 4825
24: 3772 197 2053 4055 | 45155 197 2423 4774
25: 3619 197 2100 4132 | 44939 198 2426 4814
----------------------------------------------------------------
Avr: 198 2041 4035 198 2431 4812
Tot: 198 2236 4424
Igor, if it's possible please add small change to archive information dialog. In the field "Packed Size: xxxxxxxx bytes" it will be nice to see "Packed Size: xxxxxxxx bytes(<compression ratio in format #0[.00]>%)".
Best regards,
sempron le-1200 + 1gb ram
specs: http://products.amd.com/en-us/DesktopCPUDetail.aspx?id=136
7-Zip [64] 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
RAM size: 1023 MB, # CPU hardware threads: 1
RAM usage: 419 MB, # Benchmark threads: 1
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 737 100 719 717 | 20205 100 2081 2081
23: 715 100 729 729 | 19492 100 2034 2035
24: 692 100 744 744 | 18733 100 1981 1981
25: 668 100 765 763 | 17908 100 1918 1918
----------------------------------------------------------------
Avr: 100 739 738 100 2004 2004
Tot: 100 1371 1371
7-Zip [64] 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 1023 MB, # CPU hardware threads: 1
RAM usage: 419 MB, # Benchmark threads: 1
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 758 100 737 737 | 23217 100 2390 2391
23: 732 100 746 746 | 22220 100 2320 2319
24: 702 100 755 755 | 21141 100 2235 2236
25: 674 100 772 769 | 20142 100 2158 2158
----------------------------------------------------------------
Avr: 100 753 752 100 2276 2276
Tot: 100 1514 1514
it looks strange that this new CPU is slower than 4 year old K7 XP 3200+
http://sourceforge.net/forum/message.php?msg_id=4801508
I thought it should be about 20% faster than that.
Some combinations of 65nm AMD K8 CPU + some motherboards + some versions of BIOS give very bad results for random memory access (some TLB problem). So the compression speed can be very low. That performance loss is similar to performance loss of AMD K10 with BIOS TLB Patch.
For example, look at WinRar's results of Athlon 64 X2 here:
http://www.hwupgrade.it/articoli/cpu/1826/comparativa-tra-cpu-48-processori-a-confronto_4.html
Some users restore good performance when they upload old version of BIOS to motherboard:
http://forum.ixbt.com/topic.cgi?id=8:21550
as long as it works i'm not interested about speed :)
only low power usage and stability matter for me. and i wouldn't call this pc slow, not at all...
does this CPU really run at 2.1 GHZ? check with CPU-Z: http://www.cpuid.com/cpuz.php
If BIOS settings are wrong, it's possible that this CPU only wors at 1750 MHZ or something like that.
yes it does.
Hello everyone,
tested with
AMD Athlon XP (Palomino) 1700+ at 1466,5 real clocks
Microsoft Windows XP [Version 5.1.2600], SP3 RC1
(C) Copyright 1985-2001 Microsoft Corp.
C:\Windows\Temp\7-Zip>7z b
7-Zip 4.58 alpha 4 Copyright (c) 1999-2007 Igor Pavlov 2008-02-26
RAM size: 511 MB, # CPU hardware threads: 1
RAM usage: 419 MB, # Benchmark threads: 1
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 571 93 598 555 | 12004 100 1239 1236
23: 588 94 634 599 | 11828 87 1418 1234
24: 540 97 600 581 | 11468 99 1226 1212
25: 495 99 573 565 | 9297 82 1219 996
----------------------------------------------------------------
Avr: 96 601 575 92 1275 1170
Tot: 94 938 872
C:\Windows\Temp\7-Zip>
Best regards!