ppg677

8 ms·

31.
by ppg677 5y ago
Great points.
32.
by ppg677 5y ago
It is way less CPU efficient, with poor tail latency for LAN environments.
33.
by ppg677 5y ago
QUIC needs a kernel implementation. At least in Linux, TCP/IP does a lot of its processing in soft interrupt handlers which is far cheaper and more responsive to pre-empt compared to UDP packet delivery and wakeup to an application th
34.
by ppg677 5y ago
I worked at Motorola's cellular division 20 years ago. I recall a "stop ship" incident when a 911 bug was discovered. That is, we halted the factory and shipments until the bug was fixed and a new software image was availab
35.
by ppg677 5y ago
Doesn't it get cold in Norway? I live in the Upper Midwest of the U.S. In our colder months, the range of a Tesla can drop in nearly half.
36.
by ppg677 5y ago
Wow, exactly my experience.
37.
by ppg677 5y ago
Flexible use of L2 cache slices has been heavily explored in academia. Here is one example: http://www.cs.wisc.edu/multifacet/papers/ieeemicro08_virtual...
38.
by ppg677 5y ago
Iridium was doomed from day 1. The system could only support a small number of subscribers. It was nearly impossible to recoup the capital expenditures given the capacity of the system.
39.
by ppg677 5y ago
Cars now last longer than their useful life. Especially for those who don't drive 20k miles/year. My 2013 car has 35,000 miles on it. Beautiful car (Hyundai Genesis sedan). 8 airbags. But it lacks a rear-view camera and doesn&#
40.
by ppg677 5y ago
Yet C++ is what Google, Facebook, Microsoft and others still use for their most mission critical software.
41.
by ppg677 6y ago
Apparently databases historically call shared-memory locks "latches" to distinguish them from locks used for transaction conflict detection.
42.
by ppg677 6y ago
All that stuff is emulated in microcode. And while counting architectural registers is something, in reality modern out-of-order processors do something called "register renaming" so that more registers can be used on-the-fly as i
43.
by ppg677 6y ago
I still use a 1995-manufactured HP LaserJet 5P. It rarely jams. Works great with a USB->Parallel adapter. The cartridge in there right now is probably a decade old.
44.
by ppg677 6y ago
Obvious to many: After working for 13+ years at wildly successful silicon valley companies and seeing who climbs the latter, it is those who are good at lying. There is a spectrum ranging from blatant lying to manipulative, selective withh
45.
by ppg677 6y ago
FDO compilation will often de-virtualize and remove vtable indirection.
46.
by ppg677 6y ago
I wish I read this before taking college-level Calculus http://www.gutenberg.org/files/33283/33283-pdf.pdf
47.
by ppg677 6y ago
Better article explaining she is actually first PhD in the U.S. for Computer Science. Not just first woman. https://www.cs.wisc.edu/2019/03/18/2759/
48.
by ppg677 6y ago
Not just first "woman" PhD, but tied for first Computer Science PhD (in the U.S.).
49.
by ppg677 6y ago
If you mix up your own website, you ought to consider rebranding.
50.
by ppg677 7y ago
It might not be. Lower population density and a lack of public transportation. I would worry about NYC though.