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The most interesting part is modeling the workload, and what you do with that. If you're selling a laptop, the odds the customer is running it 24/7 at maximum l
by sliverstorm 11y ago
The most interesting part is modeling the workload, and what you do with that. If you're selling a laptop, the odds the customer is running it 24/7 at maximum load are slim. In fact, it would be simply wasteful to engineer a laptop chip meant for always-on server average workloads- nobody benefits from that!
OK, so what is the average workload of a laptop? What is the real-world worst case workload of a laptop? Don't forget to consider that different software operates different pieces of the chip! Ok, now that you have all that information, start modeling the odds of a weak[1] chip ending up in the hands of a worst case user...
The rabbit hole is very deep.
[1] chips have a failure distribution, like hard drives
- Someone 11y agoReal-world worst case? The laptop I have from work that, when told to hibernate, often wakes up while in my backpack, and then waits at the 'enter full-disk encryption code' prompt (with the lid closed, in a backpack) I don't think there's any power management or throttling due to heat active at that prompt. Luckily, the thing isn't plugged in at such times. Now, the laptop battery is dead after an hour or so.
- wtallis 11y agoThe mistake there really lies with the laptop manufacturer, not the CPU manufacturer. Stupid motherboard firmware and stupid operating system drivers can undo any chip designer's hard work, and that's why laptops are so failure prone (especially where GPUs are concerned).