Category Archives: Computer

Aug '09 23

Ext3/4 performance

I’ve converted my /home partition to EXT4, and running my root partition as EXT3. While EXT4 looks good, for some reason i’m getting bad write performance on RAID1, compared to a normal JBOD disk, which i would expect to be … Continue reading

Aug '09 15

New Filesystems – EXT4 and BTRFS

EXT4 is now considered stable  since 2.6.28, there is a good article here. Its a lot better than ext3, which really only added Journals over ext2. In particular EXT4 now supports Extents, Delayed Allocation and Multiblock Reservations,  as thats the … Continue reading

Aug '09 01

Debian 5 on Microsoft Vitrual PC

To be able to test a Debian 5 Mirror install, I setup virtual PC on XP, as i had the environment already. The new Kernel kills the VM by default, so press TAB on the “Install” prompt, then enter the … Continue reading

Jun '09 04

iptables

Been getting alot of INVALID packets on the firewall due to the riverbed, looks like a new packet without the SYN Found a good tutorial for iptables and SYSCTL values, a Pocket Reference and a Firewall book too.

May '09 24

Bogomips

Interesting to compare different BogoMips from Different CPU’s Intel P-III – 800Mhz = 1600 AMD XP2000+ = 3322 Intel P-IV – 1800Mhz = 3600 Intel E2180 – 2Ghz = 3990 AMD XP3000+ = 4381 Intel E6850 – 3Ghz = 5990 … Continue reading

Apr '09 01

Ripping

Trying to figure out the best program(s) to use to RIP my DVDs to my server HDD for viewing on the Popcorn hour. The Forum has a link to a few of them Also AutoGK is good for ripping to … Continue reading

Mar '09 28

ImgBurn device buffer fluctuates

I’ve noticesd the last few times i’ve used ImgBurn that the device buffer jumps from 100% to 10% and back up again, and hovers around 2X burn speed. I though my HDD must have needed a defrag, as it was … Continue reading

Mar '09 24

Re-process mail

I can never remember the command to re-process mail with existing headers. cat 1.txt | uudecode -o /dev/stdout | /usr/sbin/sendmail -v -t -oiee