171–180 of 231 posts
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I've gone for an SSD over USB3, and get good performance - though RAMdisk would certainly be faster still and feasible with 8GB.
Running from RAM would also be great for having an effectively static system -- just reboot to get a clean slate; the hardware storage needn't even be available after boot.
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The EU single market has no positive or negative effect here as it's a private purchase not subject to any regulations. I am free to buy and sell to and from any country in the world, the issues is not everyone is willing to deal and pay for international shipping which ends up quite high for a cheap SFF tower system.
> not everyone is willing to deal and pay for international shipping In principle, shouldn't one of the consequences of the EU project be that intra-EU shipping rates should, for the same distance, be identical between within the same country and between EU countries? (Of course, I realise that outcome may not yet have actually been achieved in practice.)
Are there are any SBCs that would have suitable IO for this? The pi4 has USB 3 which internally is connected via PCIe, but the question is whether it could handle eg SATA and Ethernet on it. Not that I actually need this for anything, it would just be cool to have a small case with 1TB SSD that you can plug into a switch and deliver hundreds of MB/s. With 8GB RAM you could even make good use of the fs cache, depending on usage pattern.
I was recently wondering if there's any kind of single board computer that would be suitable for just shoveling data on the network at close to 10gbps. If you have something that basically just sendfile()s data, an average desktop PC from 5 years won't pull a sweat saturating 10gbits, barely reaching two digit CPU%. Are there are any SBCs that would have suitable IO for this? The pi4 has USB 3 which internally is con…
In fact, I have never gotten 10Gbps out of any software-only path. Routers can do it, but it's hardware accelerated and won't generate packets at that speed. I did recently get 7Gbps out of normal Internet usage, though, with a consumer-grade 10Gbps NIC on an Intel system. Pretty decent, but not 10Gbps.
Much optimization is necessary to make 10Gbps a thing. It's not a focus for $35 single-board computers. Those things are just obsolete phone chipsets in a desktop form factor; don't expect much out of them.
I was recently wondering if there's any kind of single board computer that would be suitable for just shoveling data on the network at close to 10gbps. If you have something that basically just sendfile()s data, an average desktop PC from 5 years won't pull a sweat saturating 10gbits, barely reaching two digit CPU%. Are there are any SBCs that would have suitable IO for this? The pi4 has USB 3 which internally is con…
Earlier quoted context omitted.
UK is generally an outlier when it comes to the second hand market for some reason. Our used cars go for peanuts compared to used cars in the mainland for example. I am often trawling the UK ebay for tech stuff because it's so much cheaper than Blocket (a craigslist-like) here in Sweden. PS: very very pedantically and technically, UK isn't an EU member any longer. Although there is some limbo period.
>Our used cars go for peanuts something to do with steering wheel being on wrong site making them useless to all of EU other than for parts.
I believe it stems from a tradition of not disposing of things, and instead selling them on (via "car boot" sales) or handing them down. I believe (and this is pure conjecture) that it's a recent thing for brits to dispose of things with such frivolity, and this is somewhat echoed in the car-boot sales of late being chock-full of brand new mostly chinese cheap crap.
And maybe if you have an overabundance of second-hand goods then maybe the price goes down as all of the friction to sell even things considered "tat" are gone.
And most of the things we would consider "tat" are not "tat" to everyone else, for instance, I bought my first computers for 5gbp from a boot-sale, for such a token amount of money it is likely a person would not have sold it another way. Thus, I get a cheaper computer than I would have had to pay otherwise.
Earlier quoted context omitted.
> not everyone is willing to deal and pay for international shipping In principle, shouldn't one of the consequences of the EU project be that intra-EU shipping rates should, for the same distance, be identical between within the same country and between EU countries? (Of course, I realise that outcome may not yet have actually been achieved in practice.)
In theory. In practice roads between counties are not as good so cost goes up.
One would hope that if they are successful in improving those transport links, shipping costs will reduce as a result.
I was recently wondering if there's any kind of single board computer that would be suitable for just shoveling data on the network at close to 10gbps. If you have something that basically just sendfile()s data, an average desktop PC from 5 years won't pull a sweat saturating 10gbits, barely reaching two digit CPU%. Are there are any SBCs that would have suitable IO for this? The pi4 has USB 3 which internally is con…
My experience is that these small computers don't even do well at 1Gbps. When I worked on Google Fiber, we really wanted to implement a speed test between our routers and some trusted server, but the chipset we used couldn't generate data fast enough. (We could route at 1Gbps because it took a hardware fast path, but the software-only path wasn't good enough to provide useful speed tests.) I have subsequently tested…
In general, saturating 10gbit on any x86 from the past couple years isn't a problem. Doing it with a single TCP connection is a bit tricky and requires some tweaking, and jumbo frames help too, but a simple threaded server pushing out data via sendfile to multiple clients easily gets the job done.
But yes, I agree that this is not a useful use case for SBCs, one of these things I'd just want to build because I can, not because I should.
I was recently wondering if there's any kind of single board computer that would be suitable for just shoveling data on the network at close to 10gbps. If you have something that basically just sendfile()s data, an average desktop PC from 5 years won't pull a sweat saturating 10gbits, barely reaching two digit CPU%. Are there are any SBCs that would have suitable IO for this? The pi4 has USB 3 which internally is con…
I am also interested so here's what I have found:
We want a SBC with an off-CPU networking module.
You don't want to tie up the CPU shuffling data bits for networking - there are now cheap and dedicated modules for that.
Most of what I have found are 1gbps Broadcom modules.
My issue is that the closest fits that I have found are router boards.
Please reach out if you can, would love to solve this myself.