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News stories of Sept. 4th, 2003: |
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| G5 vs G4 vs G3 Codewarrior/GCC Benchmarks |
| (from a reader email)
"
Hi Mike,
Per your request for G5 benchmarks (requested real-world tests actually-Mike) here are some comparisons between G3, G4,
& G5 for one specific compute intensive task. I would not have predicted some of the results. For example, better speed in classic and differences between CodeWarrior (which I thought used gcc ??) and gcc. The lowly 1.6GHz G5 came out looking pretty good though.
What I havn't included here is that even the G4 trounces a 2.4 GHz P4 Xeon and some 900 MHz (many $$) Sun Blades :)
Best regards, Brent
Benchmark:
- Task is a numerically intensive (double precision floating point) field
simulation code.
- Single task running except where noted. Disk I/O is excluded from timing. Small footprint (about 2.5 Megs).
- iBook running 10.2.3, B&W and G4 running 10.2.6, G5 running 10.2.7.
Case 1: CodeWarrior v8 compiler, G3 target, O3 optimisation, classic
application.
Clock Time Speed
Processor Clock Ratio secs Ratio
G3 B&W 450 MHz 0.32 164 0.34
G3 iBook 800 MHz 0.56 92 0.56
G4 DP 1.42 GHz 1.00 56 1.00
G5 1.6 GHz 1.13 37 1.51
Case 2: CodeWarrior v8 compiler, G4 target, O3 optimisation, MachO
(terminal) application.
Clock Time Speed
Processor Clock Ratio secs Ratio
G3 B&W 450 MHz 0.32 170 0.35
G3 iBook 800 MHz 0.56 98 0.60
G4 DP 1.42 GHz 1.00 59 1.00
G4 DP 1.42 GHz 1.00 62 0.95 (2 tasks running)
G5 1.6 GHz 1.13 42 1.40
Case 3: gcc 3.1 compiler, G4 target, O3 optimisation, MachO (terminal) application.
Clock Time Speed
Processor Clock Ratio secs Ratio
G3 B&W 450 MHz 0.32 198 0.39
G3 iBook 800 MHz 0.56 94 0.82
G4 DP 1.42 GHz 1.00 77 1.00
Observations:
- No speed hit when running in classic (actually 5% faster on CWv8_G3O3 !) as opposed to OSX native (MachO).
- CodeWarrior produces faster code than gcc.
- Target specific compiler optimisation (eg: running G4-targeted as opposed to G3-targeted code on a G4) did not make much difference.
- For both CodeWarrior and gcc compilers, no performance gains (and sometimes some degradation) from higher than O3 optimisation.
- Dual G4 takes only about a 5% speed hit per task when running 2 identical tasks simultaneously.
- G3 faster (between 0% and 46%) than G4 when normalise by clock.
- G5 faster (between 24% and 34%) than G4 when normalise by clock.
CAVEAT - These results and conclusions valid for this particular benchmark only !
" |
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| Reminder - Run Repair Permissions after Toast 6 Install |
| Like many readers, I have a habit of running repair permissions after any OS X update or X apps or driver update/install. Here's what I saw after a Toast Titanium 6 install as far as corrected permissions. (The usual/typical corrections are not included for brevity)
"
User differs on ./private/var/db/locate.database, should be 0, owner is -2
Permissions differ on ./private/var/db/locate.database, should be -rw-r--r--, they are -r--r--r--
Owner and group corrected on ./private/var/db/locate.database
Permissions corrected on ./private/var/db/locate.database
User differs on ./usr, should be 0, owner is 501
Group differs on ./usr, should be 0, group is 20
Owner and group corrected on ./usr
Permissions corrected on ./usr
User differs on ., should be 0, owner is 501
Group differs on ., should be 80, group is 20
Permissions differ on ., should be drwxrwxr-t , they are drwxr-xr-x
Owner and group corrected on .
Permissions corrected on .
User differs on ./Library/Perl/darwin/auto, should be 0, owner is 501
Group differs on ./Library/Perl/darwin/auto, should be 80, group is 20
Permissions differ on ./Library/Perl/darwin/auto, should be drwxrwxr-x, they are drwxr-xr-x
Owner and group corrected on ./Library/Perl/darwin/auto
Permissions corrected on ./Library/Perl/darwin/auto
User differs on ./Library/Perl/darwin, should be 0, owner is 501
Group differs on ./Library/Perl/darwin, should be 80, group is 20
Permissions differ on ./Library/Perl/darwin, should be drwxrwxr-x , they are drwxr-xr-x
Owner and group corrected on ./Library/Perl/darwin
Permissions corrected on ./Library/Perl/darwin
User differs on ./Library/Perl, should be 0, owner is 501
Group differs on ./Library/Perl, should be 80, group is 20
Permissions differ on ./Library/Perl, should be drwxrwxr-x , they are
drwxr-xr-x
Owner and group corrected on ./Library/Perl
Permissions corrected on ./Library/Perl."
I wrote a contact to ask what Perl installs were done (backup scripts I suspected - but I wanted to verify and also report all the other corrections made)
"
Hi Mike,
The Deja Vu backup software's engine uses a UNIX tool,"psync", to do its job. ThatĂs why it installs some stuff into the Perl folders. I've forwarded your message about the permissions to the developer of Deja Vu, let's see what he has to say.
Thanks,
Adam
"
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| Sonnet announces Aria Cardbus 802.11g Adapter |
Sonnet sent a press release on their new Aria 802.11g PCcard adapter to ship later this month. List price is $79.99 and OS X 10.2.6/Airport 3.1 or later is required as well as a Cardbus slot PowerBook G3 or G4. (Note: OWC site specials page has an Airport 3.1/10.2.6 compatible PCcard available now for $49.00. As noted since Airport 3.1 was released, many broadcom chip based PCcards and PCI Adapters work in Macs - see FAQ's networking section for some past reports/links.) |
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| CDRW/CD/DVD/Hard Drive/Cardreader Compatibility Database Update Listing |
| The Drive Compatibility Database had 8 new reports added (reader entries from Yesterday; entries today are added the next newsday morning). The database includes reports on Combo DVD-CDRW, CDROMs, DVD-ROM, DVD-RAM, DVD-R, CDRW, Hard Drives and Removables (tape drive, ORB, ZIP, MO drives, CF/Smartmedia readers, etc.) in all interface types (IDE, IDE RAID cards, Firewire, SCSI, adapters). Current total 11,249 reports. (searching by drive type/brand, mac model etc. listed below will show the full reports, most recent first)
CDRW Drives:
- IDE Liteon LTR-52327S (52x32x52x) in Dual G4 DDR (OS X)
(using modified burn support plugin from FAQ)
- Firewire Lacie 52x32x52x (LiteOn LTR-52327S) used w/Beige G3 (OS X)
(no native burn support for iApps as of 10.2.6 at least, FAQ here has modified liteon burn support plugin for this drive however. Remember Liteon drives often have problems burning Audio CDs if track gap is changed from the default 2 sec. gap - at least in TAO mode.)
Combo DVD+CDR Drives:
- IDE LG GCC-4520B (52x24x52x +16x DVD-ROM) in G4/AGP (OS X)
(using modified burn support plugin)
DVD-R Drives:
- Firewire (IDE drive in FW case) Toshiba SD-R5002 used w/PowerBook G3 2000 (OS X) (using modified burn support plugin from FAQ)
DVD+R/RW + DVD-R/RW Drives:
- IDE Pioneer DVR-106 in G4/AGP (OS X)
(noted buffer underrun errors at 4x, using modified burn
support plugin from FAQ)
- IDE Sony DRU-510A in G4/AGP (OS X)
(Illustrated CD drive install guide here covers G4 towers up to the Digital Audio Model, Beige G3 MT, and B&W G3 Macs)
Hard Drives:
- IDE Western Digital WD1200JB 120GB in iMac slot-loading (OS 9.2)
- IDE Hitachi Travelstar 80GN 60GB in PowerBook G3 wallstreet2 (OS 8.6)
(full review of the 80GB model of this drive is here as well as comparisons to the 60GB/7200 rpm model
PB G3 wallstreet illustrated HD install guide here)
You can find full owner reports (latest shown first) by searching the database by drive/brand/interface/mac models (the latest reports are shown first in searches).
For guides to installing CD/CDRW/DVD drives or Hard drives in many mac models, see the IDE Articles page. The Firewire articles page also has guides on case kits, installing drives, etc. If you've added a IDE, SCSI, Firewire or USB hard drive, CDRW, tape drive, etc. make sure you add a report to the database. (If you post an updated entry - make sure you use the same name, etc. as you did before so I can find your past entry. Thanks.)
(Incomplete entries are deleted. Do not post questions in the database, it's for drive reports not questions on what drive to buy - for that try searching the database for reports from owners of your mac model on the drive type/brand/interface, etc. you're interested in.)
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| Rate Your CPU Upgrade Reports Database Updated |
| The Rate Your CPU Upgrade database has been updated with 1 new report this morning (reader entries from yesterday; entries today are added the next newsday morning). Total to date: 8,696. Here's a summary of the update added today (search by brand/mac model for full reports - latest reports always shown first):
- Apple Beige G3/233 OC report
(My full reviews of G4 and G3 upgrades w/apps/game tests, install info, etc. are linked here.)
(Warning - Overclocking may not be reliable and could lead to hardware failure or corrupted data.) You can find the full reports by searching the database selecting the indicated Mac model and upgrade card brand/type. If you've upgraded the CPU on your Mac, please post an entry in the database. Search the database for entries from most every upgradable Mac model *before* you buy. (Searchable by mac model/upgrade brand). For detailed reviews with performance tests and install tips, see the CPU Upgrades page.)
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