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  Montag, 5. Mai 2008

Morgen (und das schon ab 10 am frühen Morgen): das Helma Spring Meeting 2008. Everybody come! 0 comments


Donnerstag, 1. Mai 2008

Easy watchening zum 1. Mai: Peter Norvig & Co. bei der Startup School 2008. VisualRank, data-driven word segmentation (on a laptop), Google Sets.

Und: Omnisio hat das bislang schier Unmögliche geschafft - einen brauchbaren Slides 'n' Speaker-Simultan-Player zu bauen. 0 comments



Dienstag, 29. April 2008

Eric Tiedemann, 1966-2008. Rest (or rave) in peace (as you may prefer).

e7 is wonderful. May it live on. 0 comments



Freitag, 25. April 2008

"Im Grunde ist damit Google Maps zu einem rekursiven sich selbst fütternden Mash-Up geworden."

Walter Rafelsberger durchschaut.

Semi-related und jedenfalls drüberschauenswert: Enkin."Believe it or not, predictions have to be made before an event occurs, not after the fact." 0 comments



Donnerstag, 24. April 2008

6. Mai ist Helmatag! 0 comments


Freitag, 18. April 2008

Two interesting disk-y posts:

James Hamilton: "How to ensure that data written to disk, is REALLY on disk? Yeah, I know, this shouldn't be hard but the I/O stack is deep, everyone is looking for performance, everyone is caching along the way, so it's more interesting than you might like."

Steve Dekorte: ACID Databases: Fact and Fiction

"I learned this by writing my own small database (SkipDB) and doing it wrong the first time."

WAL

Addendum: Paul McJones kindly let me know about the amazing technique of "group commits", in which mutually independent transactions (think ATM networks) are grouped into single disk write windows; that way, it's indeed possible to support thousands of (disjoint!) transactions per second while adding only negligible latency to each individual transaction. Paul also recommended Jim Gray's and Andreas Reuter's Transaction Processing: Concepts and Techniques: '[...] a good reference for just about all the "tricks of the trade"'. — Thanks!
0 comments



Mittwoch, 16. April 2008

Helma 2 imports Pythonic imports.Steve Dekorte asked: "Is anyone working on file systems or databases optimized for flash disks?"

The answer, apparently, is: yes. 0 comments



Dienstag, 15. April 2008

Havoc Pennington: 'It would be wonderful discipline for any software dev team serious about Linux "on the desktop" [...] to ban their own use of terminals. Of course, none of us have ever done this, and that explains a lot about the resulting products.' [ Ø HTP • ] 0 comments


Samstag, 12. April 2008

Philip Wadler: "Ellie works in quantum computation, and told me (rather to my surprise) that monads have an application there. She had once read one of my papers on monads, but found it too difficult. This cheered me up, since I feel the same when I try to read about quantum computation." 0 comments


Freitag, 11. April 2008

James Hamilton on China's Great Firewall:* "[...] [T]he main goal of the Golden Shield project is to add friction. If it's painful enough to get to the content they are trying to prevent from being accessed, few will bother to access it."

* Which, as he writes, isn't a firewall at all.Nachdem das liebgewonnene katchup in Rekordzeit reimplementiert wurde, möchte nun auch ich die Gelegenheit ergreifen, auf das überaus freudige Ereignis der Quasi-Wiedergeburt des famosen shnitzls hinzuweisen: Schneller, featurevoller, geographischer (man beachte die Box unter der Karte)!

Besonders wertvoll für gelernte Suderanten wie mich: inkl. Satisfaction. 2 comments • BY motz, chris



Donnerstag, 10. April 2008

Rich Skrenta: "My initial take was that this had to be annoying for Cuill. As a crawler author, I can attest that getting each new site rejection personally hurts. :) But now I'm not so sure. Looking over the list, [...] you could argue that getting all the forum seo's to robots exclude your new engine might actually help improve your index quality." 0 comments


Mittwoch, 9. April 2008

Helma 1.6.2 was released yesterday; Chris Zumbrunn has a great round-up of changes & fixes. The big ones: JavaScript 1.7 enabled out of the box, JSAdapter support.

It also looks as if there will be a Helma meeting sometime in spring. Fantastic!Two more bits about Google App Engine:

Hannes Wallnöfer dives in and mostly likes what he sees: "Das Datastore API ist ein Highlight und eine feine Inspirationsquelle für zukünftige Helmas to come."

Ryan Barrett's launch announcement; he worked on the App Engine datastore. (Hilarious, if only for me: Can you tell where the speech bubble icon on Ryan's site came from, and by which way?)

AE for structured data (the datastore does indeed look much, much cooler than Amazon SimpleDB; and there's no reason not to RESTify it, right?) & frontends (if you're comfortable turning over that much behavioural data to Google), Amazon S3 for blobs (assets & archival), Amazon EC2 for raw cycles & in-memory databases (along with a small army of cheap leased servers). InfiniBase, InfiniSpace, InfiniCycles: Every puzzle has an answer. 3 comments • BY mf, ryanb, chris




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