Messages in this thread | | | Subject | Re: GURU needed: Linux vs. FreeBSD | Date | Tue, 03 Nov 1998 11:52:28 -0800 | From | Jason Venner <> |
| |
Hard bad numbers:
Linux uses far more cpu to move data to and from disk and to and from network connections than freebsd does.
Simple test.
1) A = disk partition
time dd if=A bs=32k of=/dev/null count=5000
linux box will use 90% of the cpu, freebsd will use 2% [given a decent scsi system]
I find that for bulk tcp freebsd is about 20% leaner on the cpu usage also, so a given machine under freebsd can serv more requests per unit time before it's cpu saturates.
Given the above, I use linux for all my personal machines and Freebsd for busy servers.
OTH freebsd doesn't use the multiple cpu stuff very well at present. I think they use a single lock on the entire kernel at present -- I don't know how fine grained the linux locking is.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |