Pharyngula

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Thursday, December 09, 2004

Outages expected

Some few of you may have had difficulties getting through to the site recently: my apologies. What's been happening is that the Pharyngula server does multiple tasks, and is sitting here in my lab where my delightfully hardworking developmental biology students have been slaving away to complete their research before the end of the term. It seems that running a surprisingly active Apache server, collecting timelapse and sometimes realtime video data, running QuickTime and iTunes, and trying to process images with Photoshop all at the same time can sometimes bring even a speedy dual-processor G5 system to its knees. Oh, yeah, and filling up the hard disk with 70GB of data is also a wee bit crippling.

I'm not planning on telling them to stop, I'm afraid. Classes end in a week, and then the server will be a little less overburdened. Patience!


Trackback url: http://pharyngula.org/index/trackback/1669/Y4RmaLAm/

Comments:
#10586: DarkSyde — 12/09  at  08:19 PM
Shhesh PZ, what kind of spoiled students are you guys raising up there that would inconsiderately let their education interfere with my late night surfing, cephalopod porn, and hot worm on worm action?



#10588: Neil — 12/09  at  08:31 PM
I have a similar problem with my web server, which is also my work desktop machine, database server, computational biology platform for students and myself etc. etc....

Dedicated machines for dedicated tasks is the motto. When you win that blog award, get faculty to furnish you with a new, dedicated server. wink



's avatar #10591: PZ Myers — 12/09  at  08:42 PM
Yes, indeed. I actually do have some other machines around, but here's the catch: I think my students deserve the most powerful tools I've got in the lab. And in normal circumstances, having the server on the most powerful computer in the lab is a good idea, too. So everything migrates upwards. Oh, well.

Besides, we're in a budget crunch. I'll make do.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#10594: Reed A. Cartwright — 12/09  at  09:04 PM
My workstation has two physical Pentium 4 Xeon 3ghz processors. Because of their archetecture, each physicial processor is actually two logical processors, making it a four processor box. I provide access to my workstation to another student who runs maximum liklihood models on it that take weeks to run. I never notice any drop in performance. I moved my website off of it though because it was easier for me to administer a freebsd server than a windows one.



's avatar #10596: PZ Myers — 12/09  at  09:14 PM
I've normally got no problems at all, and plenty of excess capacity. It's just this week that everyone is pushing it to the limit.

I suspect it may actually be the bulk of data filling up the hard disk that is the key problem: when I went in earlier to check on the problem and found nearly every application on the machine running simultaneously, I could also tell the disk was thrashing a bit.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#10599: — 12/09  at  09:45 PM
Something to look at when you have time. I havent used it, but is highly rated.

http://www.mkd.cc/sox/



#10636: bjd — 12/10  at  02:19 AM
The real solution is to have someone ship you a spare G5 tower.



#10637: mattH — 12/10  at  02:54 AM
I was wondering about the project-related data I would get every once in a while. It's quite entertaining to see someone's work as the bulk of a post, even with their name as the author instead of yours, but still have the comments for the actual post I clicked on. At least I know some of what you are up to besides the blog.



#10667: Abiola Lapite — 12/10  at  10:12 AM
The real solution is to have someone ship you a spare G5 tower
Nah, the right solution is to get a RAID 5 (or, even better, RAID 0) setup, so reads are quicker, and to max out the RAM so processes don't have to be swapped out to the pagefile quite so much. Unless all the students are running SVD decompositions or something, I'm doubtful that the bottleneck here is the CPU; Photoshop and iTunes will spend most of their time waiting for user input.



#10677: — 12/10  at  10:45 AM
AL. Of course there is no such thing as too much RAM !



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