Saturday, February 28, 2009

I'm no audiofile

After having used my pair of Polk Audio RTi8 paired with Onkyo 606 reciever for close to 3 months, I decided to re-calibrate Audissey thingie. When I did it before, I did not bother to put the calibration microphone on a tripod, although I immediately recognized the purpose of a hole at the bottom of the mic assembly. Instead I (imagine that!!!) held it in my hand. The result of the calibration was so terrible, with low frequencies cranked up so much, the system sounded like underwater effect. So I thought using "direct" sound mode is my only option.

Armed with a wee bit of free time, I recalibrated today, but with a tripod this time. Not entirely sure if I positioned mic appropriately (I directed the peak with opening towards space in between speakers, although for multi-channel setup, I can imagine, it should be pointed directly upwards). But the result was nothing short of stunning.

Coldplay CD (that I hapenned to have in my DVD player) came to life, with well-balanced mid and low sections, at the same time, lows are still fairly robust, allowing to feel the tension of the big tom. Before, highs were so overpowering... I realize now that many negative reviews of Audissey EQ system may be caused by less than diligent calibration process.

Now let's see how the Led Zeppelin's Mothership takes off :)

Sunday, February 22, 2009

"man inetd.conf " made me cry

...almost

There's something wrong with me. I keep on asking questions Google knows no answers to. I realize that a desire to have rsync daemon enabled in Solaris may be quite uncommon. Well, you demigods of organized computerland, I happen to have a use case you did not plan to address. I need to run Opensolaris in a VirtualBox VM on Windows XP host, and I need to share files fr,,,

F$^%k it. Why do I need to explain?!

Update: the error message is obscure beyond obscene. It actually just meant that rsync service is not known to the system. Upon adding appropriate entry in services file, inetconf ran successfully. However, while rsync'ing works, accessing guest OS using rsync:// URL does not :(

Saturday, February 07, 2009

Stateless internet is dead

Obsessing over absent-minded person would be strange. Admiring person with either short- or long-term memory loss would be difficult. Emerging artificial intelligence, however, is encouraged to be "forgetful" for the purpose of being resilient in the face of feeble networked silicone fabric it is destined to dwell in.

Well-balanced systems combine caches of all levels. It's unfathomable to me that analogues of L1/L2 caches are so much out of favor with modern distributed system architects. Blessing of sticky session, consistent hashing, and stateful conversational state are not appreciated anymore.

Fine by me if the masters of these systems have deep enough pockets. Except they might not. Clusters of memcached servers counting in 1000s... Sigh... Why are software engineers are so reluctant to learn the lessons hardware engineers learned decades ago?