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Hi. I'm a Unix Administrator, mathematics enthusiast, and amateur philosopher. This is where I rant about that which upsets me, laugh about that which amuses me, and jabber about that which holds my interest most: Unix.
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el oh el

Posted 05-03-2010 at 11:13 AM by rocket357
Updated 05-03-2010 at 11:18 AM by rocket357

Today during our usual weekly roundup meeting, my boss announced that we're about to put in place a new VM server "cluster". It's a relatively nice setup: 3 servers, each with 2 quad-core Xeons and 48 GB of RAM. Each is connected to an iSCSI backend with TB's of storage...

So my boss asks us to estimate the CPU/RAM/disk space usage for our most critical servers that should be migrated over to the VM's. My most critical one is my OpenBSD server that I use to monitor all of the databases and report problems. It is running on an ancient HP Proliant that has hardware issues. I ssh'd to the machine and pulled up top. While our Windows guys are talking about Server 2003/2008 taking up potentially hundreds of megabytes of RAM and 20+ GB of disk space, I reported this:

0.2% CPU usage on one 275 Opteron core, 11 MB active RAM (84 MB total RAM usage), and about 1.5 GB of disk space (I have ports installed haha).

When he asked if I was serious, I told him that when monitoring scripts are running, it takes up 23 MB of RAM. That gave him a good laugh.
Posted in OpenBSD
Views 1240 Comments 2
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Total Comments 2


  1. Old Comment
    Nothing beats the stability and performance of the BSDs.
    Posted 05-03-2010 at 03:29 PM by Mr-Bisquit Mr-Bisquit is offline
  2. Old Comment
    Stability, yes...performance...ehh, I don't know. I've managed to get far better performance out of Linux than OpenBSD and marginally better performance out of Linux than FreeBSD.

    That's probably because 1) OpenBSD is designed for code correctness and readability, not code cleverness and optimization, and 2) I know Linux much better than FreeBSD.
    Posted 05-03-2010 at 10:25 PM by rocket357 rocket357 is offline


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