The Perceptus Back Story

I thought that free burn-in software would be easier to find.

Every now and then I cobble a computer together from parts, or I have to diagnose a PC that is crashing from time to time.  Unfortunately, even though a PC can boot, it doesn’t mean that it’s stable and ready to go. The tool for this job is burn-in software.

I used to use the free-as-in-beer version of SiSoft Sandra, but over the years it has gotten rather bloated.  Anyway, SiSoft Sandra is more geared towards benchmarking a computer rather than stress testing.

Today, I found a great little tool that seems to do a good-enough job of testing the CPU and RAM – it also puts a modest amount of load on the hard drive.

The free tool that I am currently recommending: CPU Stability Test by Jouni Vuorio. It seems to run fine in all current versions of Microsoft Windows.

Link: http://www.pcworld.com/downloads/file/fid,7146-order,1/reviews.html

It’s a bit old, circa 2000, and I can’t find a current website for it… but it works.  There are several “high-quality”, i.e. non-spammy, websites that host CPU Stability Test. Just Google for it if the link above goes stale.

There is still room to find a better free utility, but for now I’m satisfied.  But, if you have other suggestions for free burn-in testing software, please leave a comment!

Update: A free utility for testing memory (i.e. looking for bad memory sticks) that runs inside Windows – http://hcidesign.com/memtest/. If you’ve got the ability to reboot the machine, then use Memtest86.

Today I had a need to create a single line of text like this:

‘product1.jpg’, ‘product2.jpg’, ‘product3.jpg’

From a text blob that looks like this:

product1.jpg
product2.jpg
product3.jpg

This text chunk, in this case, comes from a copy-and-paste from a “dir *.jpg” in a Windows XP command window.

There were actually only 6 image file names that I wanted to put into an array in PHP, but I had a feeling that I would be doing this type of task again, so I spent the time to build a tool for it.

So if you need to do something similar, please try the latest addition to Perceptus’ Web Tools site, the List to single quoted CSV Text Wizard (admittedly, we don’t save our best names for that site).  All you need to do is paste in a bunch of words, one per line, and you’ll get back the one line CSV.

I think this will be handy for creating source code for arrays in many languages, and also creating the bulk of the syntax for an IN () SQL statement.

It’s funny how one stumbles upon the finer differences between XP Home and XP Professional once in a while. Every good geek knows the biggest limits to XP Home such as no ability to join a corporate network, no Remote Desktop, and no encrypted file system (EFS).  But who knew about a tiny utility that will run a Windows Scheduled Task from the command line? That would be “schtasks.exe”, and it’s not included in XP Home.

The background: I needed a Limited User in Windows to be able to do something requiring Administrative permissions.  There are a few ways to do this, but in this situation, running a scheduled task was the obvious best choice because the task was already there as an overnight maintenance job.

A quick Google search for “run scheduled task from command line” will lead you to the aforementioned schtasks tool.  Well, I could copy the file from an XP Pro workstation, but that would violate Microsoft’s copywrite.

Fortunately, more searching will turn up a reference to an old MS tool “jt.exe” from it’s Windows 2000 Resource Kit.  You can get individual tools from the W2K ResKit here: ftp://ftp.microsoft.com/reskit/win2000/. The license to JT and is much more permissive.  You’re free to use it, but at your own risk.

The “JT” syntax is not straight forward to me.  But these the two examples will probably help:

This lists all tasks: jt.exe /se

This will run (“activate”?) a task (you do not need to include the .job in the TaskName): jt.exe /sac TaskName /rj

On the XP Home Edition computer I was setting this on, the Limited User could run all the scheduled tasks, even when it couldn’t “see” the task in the list. YMMV.

One could  make this end-user friendly by wrapping a batch file around it and put an icon with a link to your script on the Desktop.

It’s that time of year again!  Our Christmas tree is up.  Is yours?

If you’re a teacher, event host, or group organizer that is looking for a fun way to celebrate the festive season, Perceptus suggests that you visit our web based bingo card generating site, print-bingo.com and generate your free (and customizable) Christmas themed bingo cards.

Of course you’re free to create non-Christian bingo themed cards for the holidays. You can start your custom bingo cards by editing our word list for the Winter Holidays.

As always, basic use of our site is free. But you’re welcome to upgrade to a Premium access account for only $10.

Merry Christmas!

Here’s my reasonably quick and free way to compare the files in a folder.  I’ve assumed a bit of computer knowledge, mostly, because I don’t have time to fill in the many little details.

Get a copy of WinMerge from Sourceforge – it’s a tool often used by programmers to see differences in text files.

Open a command window

- e.g. start –> run –> “cmd”

Create a text file with the names, sizes, and date stamps from folder “A”

- e.g. dir c:\the_documents\*.* > this_computer.txt

Do the same for folder “B”

- e.g. dir \\that_computer\c$\the_documents\*.* > that_computer.txt

Open both files in WinMerge.

- the differences in the two “dir” outputs will be higlighted for you.

Now if you’re still not sure if the files are the same or now, e.g. if the files are the same size but have different date stamps, then search for a utility called “md5sums”.  This will create md5 hashes of all files in a folder.

e.g. c:\tools\md5sums -n “\\distribution\c$\program files\cybex\*.*” > distrib2.txt

That’s it.  It’s been a couple weeks since the last blog post. We’ve been busy at Perceptus.  Our next project is going live soon – retailers with multiple locations in BC and Alberta, watch this space.  Our next product is geared for you!