theatrus2

Probably an unintentional optimization/side effect of using the GPU for some drawing path.

Regression tests are fun!

The density of LA is still far too low for a NY style subway to be cost effective. Metro Rail is in some ways pseudo-inter-city-commuter-rail, similar to BART and the DC "Metro". Its also interesting due to its diverse type of trackae (heavy and light rail).

Note that there is a cliff at about 20GB with +CompressedOoops, as the larger heap makes object reference compression impossible, so references return to a full machine word (8 bytes), which depending on your workload and code, can be significant.

Whats the interaction between systems based on Mesos, which can (and many do) use containers? Is this really designed for more multi-tenancy with lower trust over same-org clouds?

Lots of 500 errors when I "got" a ticket and was being sent to the registration. Unfortunately, that means I instantly appeared to lose the ticket and had to jump back into the ticket lotto machine.

The problem with the raw register names is that they're not even consistent between compilers/libraries. However, they're usually the best route to go form an efficiency standpoint.

That would be annoying to me too. I'd have it PWM dim.

Boosting regulators are common, but there are efficiency tradeoffs, since: a) boosting regulators consume energy, b) boosting regulators with a sleep mode (so you're not spinning the wheels 24/7) don't start up immediately.

Two 0.9V alkaline cells can still power most microcontrollers, especially in sleep mode, and red LEDs will still light. If you really need higher voltage, than the boost is the way to go.

I previously worked off of an MSP430-turned-EFM32 product which had a MCU+radio lifetime of 5-7 years on 4-AA cells (two paralleled). Most switcher solutions we looked at wouldn't have netted a measurable increase in runtime due to the much higher sleep currents in those units compared to even the MCU.

The best thing is to NOT use a voltage regulator at all. The MSP430 line will happily run down to sub-1.8V levels, which means a pair of AA/AAA alkalines could power your project in time spans well exceeding the shelf life of your batteries (5-7 years, and this was an application coupled to a 802.15.4 radio).

For more performance oomph, there are Cortex-M3 parts which exceed or meet the efficiency of the MSP430 line, such as the Energy Micro EFM32.

You're thinking of PAE. It allowed the system as a whole to use more than 4Gib, but it still limited a virtual memory space to 4GiB.

The sensitivity didn't increase by exposing it longer - its simply accumulating more signal over time.

Many sensors are ill-suited to long exposures though. While they can do it, you end up with heat related issues (commonly manifested as stuck pixels and general noise). CCDs also end up saturating and spilling over to adjacent cells, making high dynamic scenes a challenge.

Lenses are very constrained by physics, and cost. Ground glass and more exotic materials are expensive to produce - injection molded plastic isn't. A high MP sensor is miles cheaper than an upgraded optical system.

I think thats the modus operandi of any big internet company with significant internal infrastructure. The next big thing is always coming.

In my experience, G1 basically doesn't yet work well under high garbage high load scenarios. Its responsiveness was worse than untuned CMS, and significantly worse than tuned CMS.

I'd love for it to work since long pauses are the bane of any garbage collected server :)

The number of services which shouldn't normally be open is always concerning. Like port 3306.

This feature looks nice. I imagine its a bear to safely do :)

I always wished that darcs was usable "in the real world", as the concept of composability is very appealing. Perhaps there is a compromise to be reached here (local patchs with key sequence points?)

The carpeting was complete fail for a high volume system such as BART. Also, the lack of maintenance in general.

Carpeting works fine on "higher end" lower-volume rail, such as commuter Amtrak lines.

Magnetrons don't work that way sadly - you can't easily change their design power. This is why the microwave power setting is fractional time based.

A lot of US banks still want 18-year olds or a parental guarantee.

US banks love overage fees (making credit card interest rates an amazing bargain). Plus there is the liability of checks/ACH which can cause overdrafts.

Bitcoin "solves" the problem of anonymous payments, but with copyright and other liability, never mind asymmetrical connections, would probably make this unappealing to providers.

Interesting that SSH is getting through still.

I wonder how much longer till Chinese avoidance VPN tech needs to resort to stenography in images to transfer data. Masking data as cat pictures would be slow but not automatically detectable.

My employer (smartly) prohibits bringing any corporate equipment into China - including cell phones which access company email, and generally suggest not touching the Internet (at least any of your accounts) at all.

Having been there, this is honestly very good advice.

Curious to know if any B2B or other non-social hosting sites out there have been successful. Youtube is obviously the big 800lb gorilla in the room for wide distribution videos.

The last system where I used SHA-256 had 16KiB of RAM (and 128KiB of direct-mapped flash). Yes, memory use for security algorithms is important.

I recently found my Windows 98 CD. I should pop that into VMware and try out the Internet.

I remember OpenACS (or even its precursors). Still running some sites out there, like photo.net.

A 5-user CAL pack for Exchange is ~$400, about $75 per user.

http://www.amazon.com/Exchange-Standard-2010-English-User/dp...

A Windows server CAL is about $20 per device.

http://www.newegg.com/Product/Product.aspx?Item=N82E16832416...

Windows licensing is somewhat a mess, between user CALs, device CALs, processor CALs, or combinations thereof. You can see why Google's $50/user/year price is attractive - no hardware to buy, no CALs to buy, no client software to buy.

You're not going to beat the two-nodes price. If you're fine with a single-NIC single-disk server, Minis are not a bad deal.

However, you're not going to get dual-NICs, ECC memory, or multiple "spindles" in a Mini formfactor.

I am still amazed Stripe is around with the huge fraud potential. Paperwork sucks, but its needed.

And some lines only have them at certain hours. For instance, Capitol Corridor (Sacramento <-> Bay Area) only has them for the super-early-morning and late night trains.