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5601
Living Room / Re: USB Flash Drives: What to look for or avoid.
« Last post by f0dder on February 27, 2008, 05:58 AM »
Do keep in mind that the GT models are plenty faster, that's why you're paying a premium for those.
5602
Announce Your Software/Service/Product / Re: Scanahand RC1 Released
« Last post by f0dder on February 27, 2008, 05:34 AM »
Thanks for taking the time to explain, erwind! Pretty nifty :Thmbsup:
5603
Living Room / Re: New RAM tech quadruples capacity!
« Last post by f0dder on February 26, 2008, 07:54 PM »
XP64 works nicely for me so far, but as I've stated a couple of times, I don't run funky hardware or peripherals... and I make sure to find cracks enhancement patches for the games I buy. The only issue so far is that I can't install MSN Live Messenger, because the Live downloader refuses to run on Server OSes and XP64 - no idea why, but Microsoft is fond of artificial limitations (btw. for people on 32bit OSes with 4gig memory frustrations: pre-SP2 there was a limit on 4GB of physical RAM, with SP2 the limit was changed to 4GB of address space. Subtle difference, but makes a large difference).

Games probably aren't a good benchmark test for RAM speed, they should be largely GPU bound, with some CPU stress as well when advanced physics and AI are put to play. For a better benchmark, you'll want something that can keep a quadcore busy... but still doesn't do too heavy calculation on the data, but keeps it streaming through. Perhaps MD5-summing?

Vista might be usable around SP2... :P
5604
Living Room / Re: New RAM tech quadruples capacity!
« Last post by f0dder on February 26, 2008, 07:34 PM »
Lashiec: 1% difference for that particular benchmark - they probably tested something that was mainly CPU bound. Video compression, for instance, does a lot of calculations... and many speed-critical algorithms have already been optimized for "stripmining", processing chunks of data that fits in CPU cache, so you don't end up re-requesting memory and go through the slow RAM, but can work in the fast cache...

So, what RAM throughput limited algorithms be? Hm. Searching through memory comes to mind... probably compression as well, when you want to find longest-match strings. And when you add CPUs with more cores, you might start struggling for RAM bandwidth as well.

Btw., to utilize 4GB you really do need a 64bit OS - you could more under a 32bit OS if Microsoft hadn't decided not to take full advantage of PAE on non-server OSes for greedy market segmentation compatibility reasons, but oh well. And you would be able to utilize it, even though each 32-bit app would only be able to use 2GB (or 3GB for large-memory-aware apps) at once, either for running multiple apps, or filesystem caching.

I opted for 8gigabytes because I could :), it's cute being able to assign 5 gigabytes to a RAM disk and then manipulate DVD ISOs without going to the harddisk. But heck, under regular use, I don't go much above 2gig that often. Long live overkill!
5605
Living Room / Re: The Best Games You've Never Played
« Last post by f0dder on February 26, 2008, 07:23 PM »
wraith808: the laptop versions of the 8x00 are supposedly a good deal slower than the desktop versions, but still pack a punch.

Haven't tested my new card much, but it does run games based on the HalfLife2 engine in 1280x1024, 16x "something-something-smart" anti-aliasing, 16x anisotropic filtering and all other details cranked up to the max. But I probably can't run Crysis in full detail :)

Also, the card is pretty noisy - my old card was a passively cooled 7600GT, which obviously didn't make much sound ;). Might be able to live with the noise, or I might look for an after-market cooler for it. Also, it seems to draw 20W extra in 2D, I don't dare think how much more it draws when flexxing it's 3D muscles :o

But this is thread hi-jacking...
5606
Living Room / Re: New RAM tech quadruples capacity!
« Last post by f0dder on February 26, 2008, 07:12 PM »
Carol: obviously motherboards need to support this, but the technology is targetted at server class hardware, not end-users (where the common limit right now seems to be 2GB per slot, four slots, and thus 8 gigs of memory max).

Deozaan: I honestly don't know where the bottlenecks are :) - core2 CPUs have a FSB speed of 1066MHz or 1333MHz for the new 45nm CPUs - thus, theoretically, you'd want the RAM to be just as fast. Dual-channeling ram does give a performance boost (although probably not 100% linear scaling), but you might be able to feed a 1333MHz FSB with DDR2-800 in dual-channel mode? But then the large & aggressive core2 caches come into play as well, combined with application memory access patterns, so superfast ram might not even be necessary...

I honestly don't know how it all sums up, and I haven't been able to find benchmarks that say anything really conclusive. I ended up opting for DDR2-800, since it was still pretty cheap (though not dirt-cheap as DDR2-667), and much cheaper than DDR2-1066 (not to mention the current horrible DDR3 prices, ugh!). So far my system has been screamingly fast, and I don't really want to know if it has any bottlenecks :P

I also dunno if memory speed would be a bottleneck for those huge databases, they'd already run insanely much faster with a massive memory system like that, instead of constantly going through a disk subsystem. DDR2-667 can push a whopping theoretical 5.3GB/s already, which is much faster than any RAID system I've heard of :)

And I wouldn't say home users are capacity-capped, really... you might be able to utilize 4GB of memory under peak situations, and 8GB if you're doing extreme stuff,  but as the current date (almpost-March 2008, should anybody not know :P) I can't see where a relatively standard workstation user could utilize more than 8GB of memory...
5607
Developer's Corner / Re: Peer-2-Peer app
« Last post by f0dder on February 26, 2008, 10:13 AM »
You will run into trouble with firewalls/routers, not much to do about it. BitTorrent has shown that TCP is just fine for peer-to-peer stuff, you don't need UDP (many people end up basically implementing TCP ontop of UDP, so don't bother unless you know you need UDP).
5608
Living Room / Re: The Best Games You've Never Played
« Last post by f0dder on February 26, 2008, 10:10 AM »
Whoo, new GPU! Share the details :D
Cheap Inno3D GeForce8800GT/512meg DDR3... I considered the new 9600, but it's just about the same price, and performs worse... and not that much lower power consumption.
5609
Living Room / Re: USB Flash Drives: What to look for or avoid.
« Last post by f0dder on February 26, 2008, 09:57 AM »
Higher price doesn't necessarily mean better performance, you could be paying just for the brand... so definitely see if you can find a review, be very careful about trusting specs published by the manufacturer, check whether speeds are giving in megabits or megabytes, and whether kilo/mega means 1000n or 1024n.
5610
2. I am sending to this customers many games (hugh sized) which are more that 2 GB each.
Is it just me, or does this sound just a slight bit fishy?
5611
Living Room / Re: The Best Games You've Never Played
« Last post by f0dder on February 26, 2008, 09:52 AM »
I loved HL2, EP1 and EP2 - really nice stuff. I found EP2 to be a bit on the short side, but it's probably because I played it in bursts with several months inbetween, and the last burst was the single level of the game - and thus felt very short. But very enjoyable. Portal is very cute as well, nice with some different gameplay :)

As for Crysis, I never completed that... every time I've tried going back to it, I've had weird graphics flaws. But I'm getting a new GPU today, so perhaps that'll fix it...
5612
Post New Requests Here / Re: IDEA: Encryption software
« Last post by f0dder on February 26, 2008, 08:12 AM »
DriveCrypt is decent enough (I've used it in the past). But now that there's system/boot-partition support in TrueCrypt, I can't see much reason to use a proprietary and payware product...
5613
Living Room / Re: fixing hard drive errors with WD Diags
« Last post by f0dder on February 26, 2008, 06:23 AM »
Alas, no!

But there's a lot of SMART tools around, and a lot of them are free... so hopefully it's possible to find something that can send email reports. If not, it miiiight be possible to find some open-source code and then it'd be relatively easy to add some report/mailing stuff I reckon. Major problem is that SMART info is somewhat weird and can be interpreted in various ways... I think that the re-allocated sector count is relatively sane and interpretable compared to some of the other counts, though :)
5614
General Software Discussion / Re: Are Windows Dynamic Disks Reliable?
« Last post by f0dder on February 26, 2008, 05:28 AM »
From my experience using it with video capture from a digital video camera, it isn't.  Capturing to a single drive is no problem because the bandwidth required for capture is well below typical drive throughput, (hence where I said a 4200RPM drive is fast enough - if you have problems capturing, the fault generally lies elsewhere, eg. PIO, background processes).
Capturing is one thing, but editing, scrolling through frames etc... I would think a stripe makes things a bit more comfortable there? And whether a 4200rpm drive is appropriate for capture probably also depends on the source format... how much throughput does HD video require?

I don't think it would change 'game load speed' but what about loading of data during game play?  I'm talking about those games that pause every so often to load in the next >200MB resource file.
I thought it would have helped there, since many games seem to have relatively low CPU usage while loading, indicating that they're disk bound. But my RAMdisk try with Thief3 was disappointing, and a "die/reload/try-again/die/..." cycle in half-life2 where everything should be in disk cache (8 gigs of ram...) it was pretty much the same results, so I don't think a stripe would help much there.

I wonder what the games are doing during load, if it's neither CPU nor disk I/O bound. Perhaps something to do wrt. uploading textures to the GPU, but that's supposed to be super fast (PCI-e x16 has quite some bandwidth). I really don't know :)

When I refer to 'home environment' I don't include a business, (which is what your "whole day's work" implies to me), that runs from home - that's no different from a business in a store or a corporation, (except in size), AFAIC - and as such your backup strategy should be more robust.
I know my backup strategy isn't robust enough :-[ :eusa_naughty:

When I refer to home environment it is reference to the generic home PC that's used for games, internet, the odd word processing, picture collections, etc.  For that, I really don't see any need for RAID.  Not even for video editing which I do at home on my general purpose PC.
As long as a solid backup strategy is in place, a mirror wouldn't be necessary for that kind of home use. But a backup strategy certainly is, lots of people have irreplacable data on their systems now, and don't even think about the possibility of their drive dying... photo albums, anyone?

Yep, no problem with this for business applications, (and those that are just plain paranoid  :)).  But for generic home applications a decent backup setup is more than adequate and a lot less hassle when it comes to restoration in the case of a fault.
Agreed. I'm probably borderline paranoid ;). But I've experienced losing 3 years of programming and stuff (a mirror wouldn't have helped me then though, but that opened my eyes), and I've been very close to losing a lot of work due to a drive failure.

Anyway, the RAID MIRROR is crucial for my fileserver, since that's where I store the backups (yeah, I do have manual backups of a lot of stuff, I still need an automated scheme though :)).
5615
Add/Remove programs is to appaholics what Antabus is to alcoholics... or perhaps not quite, but it sounded good :)
5616
It's a shame they discontinued Digital Image Suite, it was a very easy-to-use and pretty intuitive application (even one of the guys at the museum who suffers from very severe Negative Electrostatic Charisma is able to use it).

I have no idea how it scales with huge libraries though, and it doesn't have the most advanced features and tagging. And I really do need to find a replacement, since we need to get all the museum's photos and slides digitized and organized... ugh! :)
5617
Living Room / Re: fixing hard drive errors with WD Diags
« Last post by f0dder on February 26, 2008, 05:08 AM »
maybe that is why he has never gotten around to writing a new manual??  Personally, I never understood his mumbo jumbo and actually haven't used the program for a year or two since I could never really verify it did much.
Well, to be honest I can't rule out that it does something more than just re-allocating bad sectors. I think his claim is that he "scrubs the sectors with magic bit-patterns to re-magnetize the surface" or something, but I fail to see how that would work - especially since a write to a bad sector triggers reallocation (but OK, perhaps it's possible to turn that feature off temporarily).

Afaik SpinRite hasn't been updated since 6.0 was released (some time during 2004?), but appearantly it's an effective cash cow. Probably helps a lot with all those positive reviews the "reputable sources" give, it's a self-enhancing mass delusion :)

Looks like trying the mfg's software may be the best way to go when a drive is going bad.  Since we are a small public school in the USA, money is always tight.
That's what I would do. And as soon as a drive starts getting re-allocated sectors, I rescue all data and consider the drive as dead; I might use it for transferring non-critical data or as a scratchpad, but not for anything important. I've had drives work like that for years... and I've had them fail a few weeks the first re-allocated sector. Thinking that you have repaired a drive with spinrite (or anything else) is outright dangerous.

During the summer when I usually run MemTest and reghost each student machine, I may have to add the mfg's diagnostic test to this project.  Maybe it will save some headaches as the new school year progress.
It would probably be a good idea to find a S.M.A.R.T diagnostics tool that can send email reports, and have it trigger on a non-zero reallocated sector count. That'll let you visit potential troublesome machines before things get really bad. If you have routine checks with memtest etc, it's probably not a bad idea adding a disk-vendor-tool full check, just keep in mind that the check itself does put some stress on the system.
5618
General Software Discussion / Re: XPPro SP3
« Last post by f0dder on February 26, 2008, 04:57 AM »
I got the file from MS.......

http://www.microsoft...7&displaylang=en

I Googled the file name and it seems to be readily available?

OK, just didn't sound like the typical filenames MS uses, so I was afraid you might have gotten some nasty malware - nice to hear that isn't the case! :Thmbsup:

So... it's still only an opt-in release candidate? Not that it matters that much to me, I'm on 64bit XP and that follows a completely different service-pack cycle because it's really a win2k3 kernel, not XP kernel.
5619
Living Room / Re: New RAM tech quadruples capacity!
« Last post by f0dder on February 26, 2008, 04:55 AM »
This should help boost the adoption of virtual machines. I bet we will see 4 x Quad CPUs with this type of memory. You can pack a lot of computing powers in a little bit of physical space with such a configuration.
Yup, Virtual machines could benefit a lot from this, also by having more aggressive disk caching and avoiding harddisk thrashing. And database servers - even moderately large databases could be kept mostly in-RAM (obviously you need some good UPS to prevent loss on power-off :)).

For home systems, you're better off with less but faster RAM, though. I have 8 gigabytes in my own box, and that's totally overkill and I hardly ever push that limit :)
5620
General Software Discussion / Re: XPPro SP3
« Last post by f0dder on February 25, 2008, 08:55 PM »
Hmmmm, where did you receive that EXE file from? It doesn't look like a naming scheme Microsoft would choose.
5621
Living Room / Re: fixing hard drive errors with WD Diags
« Last post by f0dder on February 25, 2008, 08:46 PM »
Ok so this brings another question.  How does what Spinrite does differ than what WD Diags or anyone's elses do??  Hope you can understand that last question.  <grin>
This is a very good question, and one I can't answer - simply because Gibson doesn't provide any hard facts, only mumbo-jumbo about magical bit patterns and whatnot. Oh, and spinrite has pretty text-mode graphics including animated sine curves... it does give you an impression it's doing something really profound, doesn't it? Personally I prefer hard facts, rather than tv-shop style circle-jerk praise emails ;)

But I'll leave the topic, the people who have had data "saved by spinrite" will obviously claim that it does something magical that other tools can't. Like, setting retrycount=infinity ;)
5622
General Software Discussion / Re: Are Windows Dynamic Disks Reliable?
« Last post by f0dder on February 25, 2008, 08:39 PM »
RAID 1 is actually slower with disk writing than a single disk (though faster on disk read).
With good systems, you shouldn't have a really noticable degradation in write speed compared to a single-disk config... and, the flipside, on bad systems you won't see any improvement for read speed. Depends on the RAID implementation. NForce4 sucks, Intel RAID Matrix rocks :)

I don't really see the point though as data integrity is the only benefit with RAID 1 and that is easily acheivable in realtime with continuous backup system.
Yup, data integrity is the reason you should choose RAID MIRROR, but ~doubling read speed doesn't hurt :)

For example, AutoSave intercepts every disk write and mirrors a version of the new/altered file to an alternative location - this gives the same benefits of RAID 1 but adds the benefit of realtime file versioning (you can set it to keep n updated copies of files so you can instantly receive n generations of file changes - nuch more useful than RAID mirroring).
Yes, that's certianly cute and you don't get that with a raid mirror. But if the realtime sync/backup is implemented without a filter driver, performance will be hellish for large files...

I personally wouldn't trust my data on anything but raid mirror, not even the fancy-pants parity schemes either - RAID-5 (the typical parity based RAID mode) can still only save you form a single crashing disk, and rebuilding is an expensive operation... I've heard more than one horror story where a second drive fails during rebuild, and then you're S-O-L.

My current setup is to have a 400gig raid mirror on my fileserver, and... ummm... not doing any automated backups of my workstation >_<. I haven't decided on a backup app yet, as I haven't found any I really like. But the goal is definitely to do incremental backups to the fileserver. I already have my most important stuff there, though, which is my source code - and that is automatically backed up with rsnapshot.

I plan to upgrade to a better motherboard in a while, since this board doesn't have the intel RAID matrix - once I do, I'll group the two 74gig raptors, and split into a MIRROR and a STRIPE part (that's the beauty of raid matrix, it allows you to have both a mirror and a stripe with only two disks). Mirror for all my important data, stripe for windows+apps+games and "scratchpad use" - in other words, stuff it doesn't hurt losing.
5623
Living Room / New RAM tech quadruples capacity!
« Last post by f0dder on February 25, 2008, 08:25 PM »
This is pretty cute, if you have massive memory needs :P. Sure, you'll (currently) be stuck with DDR2-667 speed, but you can get a system with 256 gigs of memory and possibly avoid going to the harddrive for your database...

"We had to make our chip look like a DRAM to the memory controller, and like a memory controller to the DRAMs," said Suresh Rajan, the MetaRAM co-founder whom I talked to about the company's technology. This memory traffic routing messes with the DDR2 DRAM timings quite a bit, so the MetaRAM chipset's dynamic command scheduling circuitry ends up doing a kind of "out-of-order execution" with the flow of reads and writes so that the DIMM can operate at a full 667MHz without any glitches.
5624
Living Room / Re: fixing hard drive errors with WD Diags
« Last post by f0dder on February 25, 2008, 08:20 PM »
Whoa!  Sounds like I touched a nerve with fodder about Spinrite. :o  But lets not get into badmouthing others, ok.
Yes, you struck a nerve - I have a real big dislike for false prophets, and I don't want anybody to face a complete drive trashing due to spinrite stress...
5625
Living Room / Re: fixing hard drive errors with WD Diags
« Last post by f0dder on February 25, 2008, 07:29 PM »
Friends don't let friends get fooled by the spinrite snake oil...

All drives manufactured the last many years have had a pool of spare sectors that bad sectors can be remapped to. The catch, however, is that this is only done on write to the sector, not read... so traditional systems like NTFS will detect the bad sector and map it as bad in the filesystem metadata structures, and won't try to read the sector again.

Then comes half-educated power-user that's been charmed by the GibsonGibberishTM about magic bitpatterns and magnetic surface scrubbing, and is amaaaaazed when Spinrite magically repairs the disk omfg!. And what does spinrite do? It tries to read and re-write the sector a lot of times. This will usually result in the drive reallocating the sector (check your drive's Rellocated Sector Count S.MA.R.T property), and "fix" the problem... but ask your self what kind of stress continually trying to access a bad sector puts on the drive.

I wouldn't use spinrite on a dying drive before I had made an image of all the readable sectors, simply because the drive might very well die in the process of spinriteing it. And I hate how the guy is getting away with pushing his snake oil simply because he's paid convinced a number of prominent names to praise it. And he makes it sound like it's hard to program in assembly, heh.
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