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dabiged
searching PlanetScale…
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6 ms
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61.
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by
dabiged
4y ago
As mentioned elsewhere in this post this leads to dreadful performance. You are better off using iflag/oflag options seek_bytes, skip_bytes and count_bytes to treat these options as bytes and using a large block size.
62.
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dabiged
4y ago
dd does all you want without a new version. dd allows you to specify your seek, skip and count values as bytes instead of blocks using the iflag/oflag options seek_bytes, skip_bytes and count_bytes. So to read the first MB of data 100G
63.
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dabiged
4y ago
This has become very popular in Australia with both of the big retailers, Coles and Woolworths.
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dabiged
4y ago
I am sick of hearing about labor supply problems in the hydrocarbon industry as it is a problem entirely of their own making. I was in the Industry for 12 years and in that time the industry laid off something like 40% of the workforce twic
65.
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dabiged
4y ago
Not a book, but MIT OCW has a class on Aircraft Systems Engineering 16.885J (focusing on the Space Shuttle) that is an excellent example of this. The class starts by looking at the requirements for the system, then examines every single sub
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dabiged
5y ago
I agree. This would work, but you still need to get the data off the tape, and onto the SSD. The only way to do this is 60MB/sec.
67.
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dabiged
5y ago
The data is binary formatted floating point data, generally using the IBM floating point format, though IEEE floats are also allowed. Standard compression like gzip basically does nothing. All tape manufacturers claim their hardware based c
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dabiged
5y ago
Just use a cloud provider. If you are worried about privacy encrypt it. For example, AWS Glacier deep archive would be years of storage for the cost of shipping a tape drive. If you have bandwidth issues use snowcones.
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dabiged
5y ago
I am talking about bottlenecks on reading from the tape. Sending the data to /dev/null eliminates any write bottlenecks and we still max out at 60mb/sec on a 250mb/sec drive.
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dabiged
5y ago
The main issue is that the standard was written back when file formats and tape formats were essentially the same thing. Data was read from tape, processed and written to a second tape. The memory of machine at the time were of the order of
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dabiged
5y ago
I work with a lot of tape in the oil and gas sector and one of the major issues we see is that industry wide file formats for data exchange are still based on old tapes. These formats have fixed block sizes that haven't changed since t
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dabiged
5y ago
It is as if the author has completely forgotten the last 40 years of human habitation in low earth orbit, onboard tin cans in space.
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dabiged
6y ago
I am on 35/7 ish, 20/1 when it rains, within 10km if the CBD of Perth, the fourth largest city in Australia. There are point-to-point wireless providers that tech savvy folk use that will get speeds in the range you are used to. I