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PostPosted: Wed Jul 28, 2004 5:36 am 
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Joined: Fri Feb 13, 2004 11:30 am
Posts: 140
Location: England, UK
caker wrote:
If at the very moment your Linode is booting, other Linodes are consuming CPU time, then the bogomips rating is going to be affected.


I'd like to point out that this sort of thing could happen, for example, when the host itself has to reboot, at which point all the running Linodes are shut down, and then restarted after the host comes back up. At this point, *every* Linode that was up before the reboot would be taking up CPU, probably leading to quite a low bogomips value.

[edit: spelling]


Last edited by Ciaran on Wed Jul 28, 2004 5:46 pm, edited 1 time in total.

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 Post subject:
PostPosted: Wed Jul 28, 2004 4:51 pm 
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Joined: Tue Apr 13, 2004 6:54 pm
Posts: 833
bji wrote:
In fact, I think that it's time that Linux dropped reporting of this "bogomips" value altogether. As far as I know it's never been used for anything useful, it's just resulted in confusion.

IIRC, it was originally used for the ftape driver which required a tuned timing loop to work properly. I have no idea if that driver is still supported, or whether anything else uses this value.

_________________
Rgds
Stephen
(Linux user since kernel version 0.11)


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PostPosted: Thu Aug 26, 2004 9:33 pm 
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Joined: Sat Jan 03, 2004 7:34 pm
Posts: 71
Website: http://www.darkforestmud.net
AOL: asura02003
Location: Oregon
asura wrote:
My Bogomips went from 1900 running the 2.4 kernel to 2300 running the 2.6.7 kernel. Don't know why my sysinfo says its localhost.localdomain instead of using the real hostame.


Just as an FYI... after host20's problem and reboot this week, I noticed the bogomips are now rated to 3853.51. While it is a pretty bogus number as previously stated, just thought I would make mention of it.


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 Post subject:
PostPosted: Tue Aug 31, 2004 4:52 pm 
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Joined: Mon Apr 26, 2004 5:03 pm
Posts: 47
So, is there any possibility of getting some sort of MRTG or CACTI graphs of host CPU, Load Average and IO rates? I'd be nice to use that to determine when to run certain cron jobs or determine if a slowness is just inside my VPS or due to the host being busy.


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