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88 ms·

841.
by Annatar 8y ago
This is a perpetuated myth that is patently false: ZFS loves cheap disks was the maxim when ZFS first came out, and with block checksums, explicit flush requests directly to the drive electronics, a setting for keeping redundant file copi
842.
by Annatar 8y ago
That there is no bit used for the sign, and so I know when the registers will overflow. A lot of the assembler code I wrote exploits this very fact, since when used cleverly it’s a performance optimization.
843.
by Annatar 8y ago
Mashey has a good argument, however I think that the sr overload could be solved with one sr per pipeline. For example, if the CPU is a six pipeline superscalar design, like MIPS R10000 was, implement sr0 to sr5.
844.
by Annatar 8y ago
You’ll never feel that penalty if you’re writing the assembler code by hand, not even on the oldest, slowest MIPS processor, and if you’re using a compiler, the compiler intrinsic has to do the same thing.
845.
by Annatar 8y ago
“u” in “addu” means unsigned, so if I’m using it, I understand what the implication is.
846.
by Annatar 8y ago
I had exactly that happen when compiling PowerDNS: the developers relied on a GCC intrinsic, so I had to embark on an epic journey of building and packaging a newer version of GCC. Just to be able to serve DNS answers. That’s just so wrong.
847.
by Annatar 8y ago
SIMD is processor specific, and is important only in certain scenarios. Trading portability for performance is a trade-off that most developers shouldn’t be willing to make if they are open sourcing their software, because it will prevent s
848.
by Annatar 8y ago
That’s a solution of last resort, when all else has failed, an act of desperation: whosoever does that is saying: “I don’t know how to express this in a generic fashion”, or “it’s too much work to do it that way and I don’t want to deal wit
849.
by Annatar 8y ago
Processors had these en masse (6502, Z80, MC68000) since the ‘70’s of the past century. Without those, it’s extremely difficult to implement basic arithmetic with numbers larger than what the processor’s registers support. Which contemporar
850.
by Annatar 8y ago
“2) Use compiler built-ins and get portability across different HW at the expense of not supporting other compilers” Writing code to two specific compilers (clang and gcc) is NOT portable code. This is absolutely unacceptable behavior.
851.
by Annatar 8y ago
Using compiler built-ins makes one’s code instantly unportable and is therefore unacceptable.
852.
by Annatar 8y ago
These are all work-arounds: the permanent fix is to expose the processor’s carry and zero flags in C.
853.
by Annatar 8y ago
I'm imagining hp workstations with razor-thin margins running HP-UX beating the cheapest PC at brick and mortar stores feature-for-feature, value for the dollar, with tons of multimedia and productivity software preinstalled, since hp
854.
by Annatar 8y ago
SGI engineers designed and implemented mind-blowing stuff: inst(1M) software management subsystem is still lightyears ahead of any other, even today, and how long has IRIX been out of production? Unbelievably mind blowing engineers.
855.
by Annatar 8y ago
Yep. "Infinite Reality" was a precursor to the Nvidia technology today. That's when first shader pipelines came into existence.
856.
by Annatar 8y ago
Yep, I've studied this in great detail as I was very personally affected by it: it's always the same people who were the root cause of this. Sun Microsystems was the only company which stuck to its guns and continued with UNIX,
857.
by Annatar 8y ago
I don't understand what that would have to do with anything, as long as you made a PSF SD-UX "gcc-runtime" fileset with libgcc_s.so.1 in it. That's what I did, worked just fine.
858.
by Annatar 8y ago
That was solved in the newer versions of aCC. I had no issues compiling most contemporary code all the way ‘till 2014 when I finally retired my private HP-UX server infrastructure. For particularly badly written software, there was GCC on H
859.
by Annatar 8y ago
Perhaps HP’s biggest sin is how they ditched their super-cool, PA-RISC high quality workstations and servers, how they charged premiums for the hardware and the software, how one couldn’t get HP-UX, its compilers or even the mirroring softw
860.
by Annatar 8y ago
Bravo! And this should help as well: http://heirloom.sourceforge.net/doctools/troff.pdf https://www.oreilly.com/openbook/utp/
861.
by Annatar 8y ago
https://archive.org/download/pdfy-MgN0H1joIoDVoIC7/The_AWK_P...
862.
by Annatar 8y ago
Not enough examples is only in GNU/Linux; the BSD’s and illumos-based operating systems have plenty of examples. Especially illumos, since they enforce a rule that no component may be integrated without a comprehensive manual page and
863.
by Annatar 8y ago
“Writing man pages using roff today is not very fun or intuitive.” Depends on who you ask: for me the best part of delivering software which I wrote is writing the manual pages in straight nroff in vi, with lots of examples. Seeing the engi
864.
by Annatar 8y ago
It is not a good idea to use the backslash as the trigger key since it is the traditional line continuation and escape character on UNIX. Furthermore it is not a good idea to replace the command line with a menu since that limits what is po
865.
by Annatar 8y ago
To be fair, those places have also become unreasonable with cutting costs. IT in the financial industry used to be lucrative but is now about the worst place imaginable, especially since the latest fad is laying off indiscriminately and off
866.
by Annatar 8y ago
There are plenty of elder Swiss who’d gladly work if they only had the opportunity but are ausgesteuert instead, so there can be no argument about not being able to find the natives to do the work. Finding someone malleable and willing to
867.
by Annatar 8y ago
I don’t mean just the salary: in America the safety net is very poor, medical insurance is an issue, transportation and social services aren’t uniform like they are in Europe; everything is spotty at best.
868.
by Annatar 8y ago
I honestly don't know why you got down-voted for this: I can confirm from first hand experience that everything you wrote is a fact. This place often makes no sense whatsoever in what is considered good or bad.
869.
by Annatar 8y ago
Nobody in Europe is truly poor like they are in America. Most places in the States, one is lucky if one earns $40 to $55 k per year, and that's barely enough to make ends meet (been there, done that, got the T-shirt), especially for yo
870.
by Annatar 8y ago
Gigs where people have very specialized knowledge, like SAP consulting, or where they have 20-30 years of system engineering and IT architecting experience. Taxation is low compared to the rest of the world, but since Switzerland is closed

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