jerven

48 ms·

451.
by jerven 11y ago
Its really a question of per file system as that makes a real difference. XFS and ext4 will online defrag, i.e. when your volume is les than 90% full you don't worry about it, if its fuller than that fragmentation is not the problem to
452.
by jerven 11y ago
In my case in 500,000 lines of code or so it was the only example. Nothing like the stuff I found in a different job going from 4 to 5! The enum keyword was painful! and then we found class names in the database instantiated at runtime with
453.
by jerven 11y ago
Basically Oracle no longer freely supports their version of Java7. For Android, Google is responsible, and as an end user you don't get any support at all.
454.
by jerven 11y ago
I had one experience in java6 to java7 migration. The issue was a partly overriding of a list implementation. That list implementation was used in a for loop. The way the for loop was iterated across over was different in the two java versi
455.
by jerven 11y ago
Sorry for the google translate link. But the interesting part is that this is using electric cars for meeting load peaks on a (local) electric grid. Using real peoples cars and homes.
456.
First Vehicle2Grid Energy Storage Network in Europe(translate.google.com)
2 points by jerven 11y ago|2 comments
457.
by jerven 11y ago
It used to be ladies job. Then after ww2 they where fired to become house wives and make place for men coming back from war. Until the 80's women in the few programming jobs and courses in the US used to be in the 40% only when home pc
458.
by jerven 11y ago
Yet in practice schema.org shows that people do put in their webpages and it has a benefit. Cory argues that you can't trust meta data therefore its useless. Newsflash nothing can be trusted, but its at least nice if you can parse it b
459.
by jerven 11y ago
I strongly disagree. Mostly because the semantic web is very, very useful in the life sciences. And over the next 5 years will save more money being wasted in this field than was ever spend on grants for the semantic web tech. Not just on t
460.
by jerven 11y ago
You are right meant to write NTriples not N3 but editing on the phone is such a disaster. N3 adds a rule language next to the data description over RDF. XML disallows a few things that are possible in turtle but in practical terms there are
461.
by jerven 11y ago
Funnily that's what the s semantic web stack achieved. JSON-LD, RDF/XML, turtle, n3 etc etc all different serialisations for the same knowledge. Choose the serialisation on the use case but no need to remodel your data evertime.
462.
by jerven 11y ago
Oh very nice named graph security support. Need to find some time too test this.
463.
by jerven 11y ago
Have a look at blazegraph it can do both sparql and gremlin. Has support for runninh on clustered gpu. Was selcted by wikidata when titan was bought.
464.
by jerven 11y ago
There is a nice picture of a new 4MW Enercon model in http://www.enercon.de/p/downloads/WB_012015_GB.pdf Showing most of these advances.
465.
by jerven 11y ago
If you are under 10,000 triples per customer, you are using the wrong technology stack. Either use RDF and SPARQL and leverage your graph potential or use relational on HBASE, the current solution does not seem to work for you. On the graph
466.
by jerven 11y ago
How many triples?
467.
by jerven 11y ago
I think its wrong. It says 64 TB does not fit in RAM, but you can get 64TB machines from SGI as well 32 TB ones from Oracle. The SGI one with up to 2048 cores are larger in their single system images than most people have in their clusters.
468.
by jerven 11y ago
We deal with the issues brought up by others that most developers can't really do this, by asking them to bring a piece of public code that they like and give 10 minute presentation about it. The code that they select tells a lot and i
469.
by jerven 11y ago
Rust does not have undefined behaviours in the sense of C. C and C++ are rather unique in the very large amount of undefined behaviour that is in common use. A nice comment pcwalton https://news.ycombinator.com/item?id=76019
470.
by jerven 11y ago
I completely agree, although hotspot is really hampered by the fact that objects are allocated willy nilly on the heap instead of together for pipeline efficiency. So while hotspot (and graal) generate lovely assembly the lack of data local
471.
by jerven 12y ago
Really nice, I am just needing this ;) Super that it is MIT licensed as well. I was halfway on building something on top of XZ SeekableInput Streams but this is probably a lot saner to use ;)
472.
by jerven 12y ago
The nice thing if you where using Stardog and this happened, you could easily move to any of its competitors which implement the same standards. Including opensource version too. i.e. you might miss a feature but at least your queries will
473.
by jerven 12y ago
What about JSON-LD and linked data platform. At least JSON-LD comes from the W3C Web payement workgroup
474.
by jerven 12y ago
It's rather nice compared to VMWare's commercial licensing terms.
475.
by jerven 12y ago
Luckily most (all?) of this was fixed in RDF 1.1 interesting read anyway.
476.
by jerven 12y ago
Super neat JS work! I have similar code for doing GC/AT counts in java. Using longs and popcount one can do 16 nucleotide per cycle. Also what is nice is that one can easily use a memory mapped byte buffer as long buffer to run through
477.
by jerven 12y ago
Just curious but why would the same type of programmers that make Java "Enterprise" do better when given GO instead? Taking into account that GO GC is not better than the Java ones, and you currently can't solve it by trowing
478.
by jerven 12y ago
Jit came with 1.3.1 if I recall. Of course the real question is if lisp is that good why aren't more people using it? Including the people who know about lisp and java?
479.
by jerven 12y ago
I also love this novel! Read it a lot of times probably more than 20 but not yet close to 100.
480.
by jerven 12y ago
Yes, because you remove a whole class of errors that might be exploited. Might be hard, might even be impossible, but they are there waiting to be taken advantage of. Interestingly enough, very high performance java is a bit like rust. Almo

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