Yeah, it works. # df -h Filesystem size used avail capacity Mounted on /dev/dsk/c0d0s0 7.9G 3.3G 4.5G 43% / /devices 0K 0K 0K 0% /devices ctfs 0K 0K 0K 0% /system/contract proc 0K 0K 0K 0% /proc mnttab 0K 0K 0K 0% /etc/mnttab swap 15G 896K 15G 1% /etc/svc/volatile objfs 0K 0K 0K 0% /system/object /usr/lib/libc/libc_hwcap1.so.1 7.9G 3.3G 4.5G 43% /lib/libc.so.1 fd 0K 0K 0K 0% /dev/fd swap 15G 112K 15G 1% /tmp swap 15G 32K 15G 1% /var/run /dev/dsk/c0d0s3 3.

SGI and Clearspeed. SGI is now down to $4.90/share at its close. It dropped 11% yesterday. Market cap is $57M. Yow. Yeah, the market has been volatile. I am not sure that explains this. With 1600 employees, this is a value of $36k/person. They are rapidly getting to a place where their valuation and ours becomes comparable. They are getting wins, but maybe the wins are not as profitable as they need … or maybe the ones we hear about are the only ones rather than a representative set.

Day job (actually company) has been in business 6 years, and is having a 6% sale to celebrate! Basically any hardware (including JackRabbits, our Pegasus many core workstations, and HPC clusters) purchased and paid for in month of July 2008. Ping me if you would like info about any of these things.

So I built this thing called run.pl to run N simultaneous instances of a command. To use it, you type run.pl N the_command_you_want_to_run_N_times_simultaneously So if I want to run 10 uname’s on my laptop … landman@lightning:~$ ./run.pl 10 uname O[1]: Linux O[2]: Linux O[3]: Linux O[4]: Linux O[5]: Linux O[6]: Linux O[7]: Linux O[8]: Linux O[9]: Linux O[10]: Linux Cool huh … Ok. Now lets see how many mplayers will swamp the NIC and CPU.

Ok. I asked for pointers to free as in Libre video. Stuff we can use for testing streaming performance. And load the JackRabbit system, with multiple clients pulling these videos. So first you need a video server. Well, IIS can do it in windows, but as I have discovered, Apache 2.2.9 does a somewhat better job of serving media on Windows 2003. Not sure why yet, may look. So now we have the mpeg of “The Brain that wouldn’t die”.

Youtube used to be “the” video site. Yeah, there are lots of competitors out there now. Sort of like social networks for a while. But Youtube has an issue. Click on an embedded vide in a web site or a blog, and it is at best a crap shoot as to whether you will get anything playing. Most of the time now, we don’t. This is true on Windows, on Linux, with the latest Flash.

Again, 24 drive bay JackRabbit storage system. Version 1.03 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP jrs8 32088M 511057 49 228336 35 1046117 91 514.5 0 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 21727 95 +++++ +++ 25751 99 22791 99 +++++ +++ 21702 98 jrs8,32088M,,,511057,49,228336,35,,,1046117,91,514.

Now that I have run through the 32 bit windows portion of the benchmark for the customer, I want to compare to our default way of shipping the units. So I fired up our default CF load, rebuilt the RAID. Simple little test runs, nothing to see here (no tuning yet) The really simple minded tests … how quickly can we pull from the disk and the buffer cache. root@jrs8:~/mdadm-2.6.6# hdparm -tT /dev/md0 /dev/md0: Timing cached reads: 8862 MB in 2.

Ok, now I know why Microsoft has been working so hard on W2k8. Because W2k3 doesn’t scale well under load. Using our test rigs, and the apache “ab” program, we can see huge differences in the same hardware (literally the same, simply swapping out boot drives), between W2k8 and W2k3, with the latter barely about to eek out 60% of the theoretical max. With W2k8, we were getting about 1 GB/s (8Gb/s) out of the unit with 10 clients running ab (specifically ‘ab -c 1 -n 100 -v 1 http://192.

W2k8 was not hard to install. Actually it was almost easy. Administration wasn’t hard. Most things went right on. Performance was ok. W2k3 was a royal pain to install, and I am not done yet. Administration … well, between the network adapters which, after being told to use a fixed IP address seem to still wish to acquire an IP address, to the IIS which refuses to install unless SP2 CD is available (this is W2k3 SP2 BTW) …