tblader wrote:

Hello All. Below are some compile times for 2.6.20 on an fx-62 running Centos64 with various 2 gig sticks of dual channel ram (See previous posts with subject of 'segfaults with 8gig of ram' for more details.)

It seems dual channel will compile a kernel faster, but only gained around 30 seconds over 20 minutes. Below are the shortest/longest compile times of several compiles done over the weekend.

Compile consisted of make menuconfig (save .config) time make dep clean bzImage modules

2 sticks dual channel @800mhz 10 samples ================================ real 791.46 user 664.10 sys 93.85

real 799.88 user 665.30 sys 93.87

4 sticks dual channel @400mhz 5 samples (before it hurled booting) ================================ real 876.19 user 712.98 sys 116.18

real 846.06 user 710.16 sys 115.42

3 sticks single channel @800mhz 6 samples ================================ real 815.74 user 673.73 sys 108.30

real 822.95 user 674.32 sys 108.62

I am putting together a pretty high-end workstation and originally had ordered 2gb sticks. Here's my [main] hardware specs:

Abit AB9 QaudGT motherboard Intel Core 2 Duo E6600 Seasonic M12 PSU 3 Seagate 250gb SATA II disks

Since my main goal is to run VMWare Workstation with host OS Centos 5 (when it comes out), I was originally interested in using 8gb memory. But after posting the following thread on the Abit motherboard forums, I discovered that the Intel P965 Express chipset does not fully support PC6400 (800) DDR2 memory:

http://forum.abit-usa.com/showthread.php?t=121720

So I returned that memory and went with 4 1gb sticks of low latency (4-4-3-8) memory instead, trading memory capacity for performance.