So no. The network is very certainly not the bottleneck.
And on the CPU side, SCSI controllers allow the CPU to sit 95%+ idle while the disks are thrashing their little arses off. I haven't yet seen an IDE interface that good. If you're lucky the CPU will be hit to the tune of 20-50% usage with IDE.
With the 15 devices, who said they were all disks? Oh and the bus runs at 320Mbytes/second.
As I said. SCSI is expensive but designed to scale. IDE is designed to be low cost.
IDE drives are fine in a desktop machine. It isn't likely to be heavily stressed and any reads and writes are likely to be from a single application at a time and a single user at a time with a CPU that is typically 99% idle. Such a user doesn't need the benefits of SCSI and the additional costs that the marketing people add.
If however you have 100 people all accessing different pieces of the disk, some reading some writing then IDE will just not cut the mustard. It requires too much CPU involvement. With SCSI the CPU just says here you handle this to the SCSI interface and gets on with something else instead. In addition, with SCSI I can have 15 devices on a single bus, with IDE, I can have 2.
So basically:
SCSI = scalability & heavy loads. IDE = low cost & single user access.
Use the one appropriate to your application. For most people that'll be IDE, for other people chucking a lot of data around and lots of processes doing different things, SCSI would be better.
Just a quick rant about laptops. People think that a 1GHz laptop is as fast as a 1GHz desktop. It isn't. The laptop disks are designed with power management in mind and are often significantly slower than normal IDE even. So if your managment think that everyone should have laptops, tell them not to complain when their Oracle client runs like shit.
ITV Digital has about 1% of the market with maybe 1 million subscribers out of 60 million people in the UK and is in debt to the football association to the tune of a couple of hundred million dollars. Their set top technology has been comprehensively cracked and cracked cards are easily available.
I admit it. I speed every day. Yes, that's *every* single day that I use the roads. 99% of other road users do exactly the same and you know what?
The roads are safer than houses. In the UK, you have more chance of being killed by an accident in your home than you have on the roads. Don't believe me? 4000 people killed in accidents in the home in 2000 and 3,500 killed on the roads.
Speeding is only targeted because speed is easy to measure. That's it. It's a cop out. The fastest roads (the motorways) are also by far the safest roads.
The vast majority of accidents occur in urban roads with a 30 limit at a junction and *don't* involve speeding. They are caused by lack of observation. "Sorry Mate I Didn't See You".
Putting black boxes into vehicles isn't in any way going to improve driver observation.
What just might improve road safety? Compulsory driving tests after an accident or compulsory advanced motorist training might just make a difference.
The BCS qualifications include both examination results, academic stuff with real world experience.
Anyone can join, there are multiple levels of membership based on academic qualifications and experience. Full membership requires four years membership in the industry. You can also gain chartered engineer status with appropriate academic qualifications. This is *real* engineering, not the poxy Microsoft definiton of engineering.
They've since been bought by EMC and closed down but they had it working *and* scaling to 32 CPUs and on the market. 64 CPU systems were well on the way but I don't recall if they finished them.
You can buy the bits needed to build your own NUMA hardware system out of separate boxes relatively[1] cheaply. The speed depends on how you manage the memory and I/O. You'd need Linux to support it as a coherent whole though and I'm not sure that it does.
Supports Email, POP, Jabber, drawings, notepad, alarm clock, SMS, you know, all the standard PIM stuff and is an intuitive and useful phone into the bargain. A fraction on the large size, but they've got a smaller one on the way.
It's *really* good for SMSs, I set up SMS alerting on some of our systems and at one point, got spammed by a bug in the alerting mechanism to the tune of around 9,000 SMS messages. The 008 handled it no problem. Took around 4 days to download and trash all the messages, but I didn't have to do anything manually once the inbox was configured.
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So no. The network is very certainly not the bottleneck.
And on the CPU side, SCSI controllers allow the CPU to sit 95%+ idle while the disks are thrashing their little arses off. I haven't yet seen an IDE interface that good. If you're lucky the CPU will be hit to the tune of 20-50% usage with IDE.
With the 15 devices, who said they were all disks? Oh and the bus runs at 320Mbytes/second.
As I said. SCSI is expensive but designed to scale. IDE is designed to be low cost.
Entirely different purposes, not better/worse.
IDE drives are fine in a desktop machine. It isn't likely to be heavily stressed and any reads and writes are likely to be from a single application at a time and a single user at a time with a CPU that is typically 99% idle. Such a user doesn't need the benefits of SCSI and the additional costs that the marketing people add.
If however you have 100 people all accessing different pieces of the disk, some reading some writing then IDE will just not cut the mustard. It requires too much CPU involvement. With SCSI the CPU just says here you handle this to the SCSI interface and gets on with something else instead. In addition, with SCSI I can have 15 devices on a single bus, with IDE, I can have 2.
So basically:
SCSI = scalability & heavy loads.
IDE = low cost & single user access.
Use the one appropriate to your application. For most people that'll be IDE, for other people chucking a lot of data around and lots of processes doing different things, SCSI would be better.
Just a quick rant about laptops. People think that a 1GHz laptop is as fast as a 1GHz desktop. It isn't. The laptop disks are designed with power management in mind and are often significantly slower than normal IDE even. So if your managment think that everyone should have laptops, tell them not to complain when their Oracle client runs like shit.
It's all moronic tedious crap that's about as interesting as watching paint dry.
If they want morons running their infrastructure, that's their perogative.
1 million is shit. The market for digital TV is the 55 million people who don't have Sky. Not the 4 million who do.
That's pretty much what I've been looking for.
Competence costs money. It's easier to be incompetent but able to show the management where you've saved XXX million dollars in support costs.
Just think, a world without all the dull dull dull football matches on TV. The more football clubs going bust, the better.
In fact. it'd be good if Sky bought all the football matches forever then we wouldn't have to have it on every channel every saturday.
ITV Digital has about 1% of the market with maybe 1 million subscribers out of 60 million people in the UK and is in debt to the football association to the tune of a couple of hundred million dollars. Their set top technology has been comprehensively cracked and cracked cards are easily available.
Not necessarily a good business to be in.
It's a government monopoly on space travel. Replace it with commercial organisations instead.
These guys are going to be a massive success.
Yah think? Bwhahahaha.
The stats include motorcyclists, cyclists and especially, *pedestrians*.
i.e. Include anyone who steps out onto the street if you please.
I admit it. I speed every day. Yes, that's *every* single day that I use the roads. 99% of other road users do exactly the same and you know what?
The roads are safer than houses. In the UK, you have more chance of being killed by an accident in your home than you have on the roads. Don't believe me? 4000 people killed in accidents in the home in 2000 and 3,500 killed on the roads.
Speeding is only targeted because speed is easy to measure. That's it. It's a cop out. The fastest roads (the motorways) are also by far the safest roads.
The vast majority of accidents occur in urban roads with a 30 limit at a junction and *don't* involve speeding. They are caused by lack of observation. "Sorry Mate I Didn't See You".
Putting black boxes into vehicles isn't in any way going to improve driver observation.
What just might improve road safety? Compulsory driving tests after an accident or compulsory advanced motorist training might just make a difference.
I make money supporting GPL'd software. I know of tens of thousands of others like me.
"without the help of Consume."
:)
You're massively overestimating the level of organisation within Consume.
There are a lot of businesses and consultants making money selling and supporting GPL'd software.
You don't see massive software marketing organisations like Microsoft because the business model doesn't support that style of organisation.
Yeah. That'd be because I'm an order of magnitude smarter than you.
The trends have been measured over several thousand years using ice cores and sediment analysis.
The BCS qualifications include both examination results, academic stuff with real world experience.
Anyone can join, there are multiple levels of membership based on academic qualifications and experience. Full membership requires four years membership in the industry. You can also gain chartered engineer status with appropriate academic qualifications. This is *real* engineering, not the poxy Microsoft definiton of engineering.
Ooh, for 5 years or so.
They've since been bought by EMC and closed down but they had it working *and* scaling to 32 CPUs and on the market. 64 CPU systems were well on the way but I don't recall if they finished them.
You can buy the bits needed to build your own NUMA hardware system out of separate boxes relatively[1] cheaply. The speed depends on how you manage the memory and I/O. You'd need Linux to support it as a coherent whole though and I'm not sure that it does.
[1] For large values of relatively.
Seriously. Privatise it. A massive government monopoly on space is a waste of tax payers money and is stiffling private enterprise.
With shrinking budgets NASA is just an albatross round the neck of space travel.
Uses GPG and works with all Windoze applications that allow cut/paste of ascii text.
If copying overseas is the main problem then why are these companies hitting their most profitable and loyal home based customers?
http://www.motorola008.com/008.html
Supports Email, POP, Jabber, drawings, notepad, alarm clock, SMS, you know, all the standard PIM stuff and is an intuitive and useful phone into the bargain. A fraction on the large size, but they've got a smaller one on the way.
It's *really* good for SMSs, I set up SMS alerting on some of our systems and at one point, got spammed by a bug in the alerting mechanism to the tune of around 9,000 SMS messages. The 008 handled it no problem. Took around 4 days to download and trash all the messages, but I didn't have to do anything manually once the inbox was configured.