Now we just need to get a power supply for the damn thing.

It turns out that some kind souls are keeping unofficial packages up-to-date for the rest of us chumps.  I found the how-to in the comments here: http://stackoverflow.com/questions/831723/where-to-find-prebuilt-binaries-for-subversion-1-6-for-ubuntu-or-debian

Now we can say, “fuck yes!”

It lives here: https://chrome.google.com/extensions/detail/ghnomdcacenbmilgjigehppbamfndblo

El grapho:

The red line indicates the number of new users per day, and the blue the total user count.  Aside from a week or two in January 2009, for most of this year we were lucky to see double digit user registrations on any given day.  This changed when Lifehacker posted a review of the Camelizer in October 2009, raising the average from 7 users per day to 27.

Thanks to Nithya and the rest of Cosmic Shovel, Justin / Cockos / R&W, and the Cosmic CTO for keeping this thing afloat.  I do the coding, they do the important stuff!

(I’ll keep this post updated as we move toward the big 10k, just like in the previous masturbatory post.)

• 12/29/2009 – 5,100
• 1/3/2010 – 5,200
• 1/7/2010 – 5,300
• 1/11/2010 – 5,400
• 1/16/2010 – 5,500
• 1/21/2010 – 5,600
• 1/25/2010 – 5,700
• 1/28/2010 – 5,800
• 2/1/2010 – 5,900
• 2/4/2010 – 6,000
• 2/10/2010 – 6,100
• 2/15/2010 – 6,200
• 2/19/2010 – 6,300
• 2/23/2010 – 6,400
• 2/28/2010 – 6,500
• 3/4/2010 – 6,600
• 3/8/2010 – 6,700

The blades are pretty hot: dual dual-core opterons with 8gb of ram each, and two ultrascsi hard drives (our least favorite part.)  They will provide a great place for us to run web servers, memcached, and whatever else we need to do.  And apparently we can get a bunch of useful admin modules for the chassis’ themselves.

Here’s a pic:

How long until we need to fill both chassis’ up with blades?  Hard to say, but I look forward to finding out :]

The procedure looked like this:

• root phone
• remount / as read-write (in my case: mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system)
• replace /etc/hosts with the contents of an up-to-date ad host blacklist
• sync and reboot

I imagine this will lower my bandwidth use as fewer images and other content files are downloaded.  Verizon should thank me.

Classic.

Which meaningless shopping day will be most fruitful for the camel farm?  Hard to say until tomorrow!

After some firmware upgrade issues (this is apparently a very early unit) I have one thing to say about this drive – it is incredibly fucking fast.  How fast?  I’ll use my 150gb WD Raptor and the benchmarking tool HD Tune Pro 3.50 for comparison.  Obvious note: the WD is in use and has a formatted partition but neither applies to the io-Drive; I’m sure this affects the WD’s benchmarks but they are fair enough for me.

Update: When you initialize an io-Drive, you choose from three performance options, with each modifying the ratio of storage to performance.  For my original write up, I used the maximize performance option.  This cut storage capacity in half, which makes it probably not the best benchmark in the world when the database I want to store on it is larger than the 40gb it provides.  The middle tier is 56gb or so.  Anyway, the options do change the results but not by much.  Off the top of my head, I’d say there’s maybe a 10% spread between the three of them.

Read/Write Benchmark

The “benchmark” tests are just raw reads and writes from what I understand.  This means that I cannot provide a write test for the WD, as I don’t want to overwrite it.  You can see which drive is which in the top left corner of each screenshot.

Notice how sexy?  No less than 400MB/sec throughput at all times and 0.1ms access time.  How does the Raptor fare?

Terrible by every measure of comparison and delivers diminishing returns to boot.

Random Access

This is probably the most important benchmark when it comes to the thing for which I’ll be using this drive (MySQL.)  And as the previous screenshots have already made painfully obvious, the io-Drive pummels the Raptor.

The Raptor is surprisingly awful.  And it’s not that the difference between the drives is so surprising, but that I (and most people) probably have no idea what we’re missing in terms of normal hard disks vs SSDs.  It’s akin to upgrading directly from an Apple IIe to some fast quad core machine these days, the difference seems that large.

Tomorrow I’ll install this wonderful device into the camelcamelcamel database server.  It will replace a SAS RAID and will assuredly be faster, though I wonder how to solve the redundancy / backup issue…at least with the RAID, it has a battery backup in case the power suddenly goes out (and the UPS fails too for whatever reason).  For now I guess I will just place the MySQL data on the io-Drive, cp it to its old RAID hourly, and see what happens.

Barring catastrophe, this could drastically increase the peformance of the DB server.  Maybe the CPU use will even go up when it no longer has to wait 9-25ms between accesses!

Update

On second thought, I have decided to test other drives in my system to see how much of an impact being the OS drive had on the Raptor’s results.  Here are the results for a 1tb WD drive.

Read Benchmark

Again, I’m only doing read here due to wanting to keep my data intact.

Interestingly we see that this drive has a higher transfer rate than the Raptor but is slower on accesses.

Random Access

If there’s one word to describe the 1tb WD drive it is consistent.

Conclusion

Being in use had a huge impact on the Raptor and/or it was a lot slower than the other WD drive.  Irrespective to this is the fact that the io-Drive still brutalizes them both; just the access time differences alone are enough to make one weep.

Miscellaneous Screenshots

Interesting hardware requirements for a hard drive.

This drive was apparently quite old (a whole year!) and had probably never had its firmware updated.

Here are the aforementioned storage:performance ratio formatting options.

ActionController::Base.session = {
:expire_after => 1.day()
}

I set this in both config/environments/production.rb and in config/environment.rb just in case it matters, and it seems to work: cookies are now being set with an expiration date, where before they were not.

Don’t know what a ChatSack is?  Do yourself a favor and read the Great Outdoor Fight.

Apologies to IE users, but for as hard as I try to avoid doing things that aren’t supported in the big browsers, this was too cool to pass up.  I hear there is some kind of IE plugin that adds the canvas element though!

Their review of that add-on is here.  Seems pretty positive, right?

http://blog.camelcamelcamel.com/470/the-camelizer-our-new-firefox-add-on.html

This brought about another problem: even if I specified that my Twitter application was web-based and set a callback URL in the app. settings, Twitter kept using the OAuth PIN-based authentication method; I wanted the callback!  The fix involved adding the auth_callback parameter to the Twitter::OAuth class, which then gets sent along with the get_request_token() call.

Here’s the monkey-patch:

module Twitter
  class OAuth
    def initialize(ctoken, csecret, options={})
      @ctoken, @csecret, @consumer_options = ctoken, csecret, options

      if options[:sign_in]
        @consumer_options[:authorize_path] =  '/oauth/authenticate'
      end
    end

    def request_token
      @request_token ||= consumer.get_request_token(@consumer_options)
    end
  end
end

I’ll go ahead and slap the old “it works for me” disclaimer on this one. =]

Thank you for contacting the Public Works Agency Call Center regarding the email below.  Our street cleaning crew is at the location cleaning up litters and the service request for that is registered as XXXXXX.  Your service request for pothole repair on the YYYY block of Hollis street is registered as ZZZZZZ. Please contact us at (510) 615-5566 if you have further questions.

Who knew complaining to the right people about a problem would help fix it?  Here’s hoping they actually come down and do the work, and that it stays clean!  My theory is that people dump more garbage where there is already a pile, so maybe cleaning it up will resolve the situation.

Afternoon update: the sidewalks are clean and the potholes have been fixed, not even 24 hours after my complaint!  How long until the picture below returns to its garbage dump-y state?