On 6/9/07, Andrew Lentvorski <[EMAIL PROTECTED]> wrote:
Bob La Quey wrote:
> On 6/9/07, Andrew Lentvorski <[EMAIL PROTECTED]> wrote:
>> Darren New wrote:
>> > Well, yeah, me too. It's not like Linux is the paragon of reliability.
>>
>> True, that's why I use FreeBSD ... <ducks>
>>
>> -a
>
> Data?
Of the top 20 longest uptime servers on the internet, 17 are BSD.
http://uptime.netcraft.com/up/today/top.avg.html
-a
Thanks. Interesting site. If you click on the next ling down,
labled "Top requested sites" BSD does not appear until
number 18. Of the top 20 sites 14 are Linux.
Maybe the best way to stay up is to be lightly loaded?
Probing a little deeper one finds in the FAQ
http://uptime.netcraft.com/up/accuracy.html#cycle250
"Why does my uptime go back to 0 after 198 days ?"
"The Linux TCP stack uses the low 32 bits from the system uptime
timer, and this timer, in recent kernel releases, runs at 250Hz. This
means that the timer value wraps around to 0 after roughly 198 days.
Although we could in theory attempt to compute the true uptime for
OS's with this upper limit by monitoring for restarts at the expected
time, we prefer not to do this as it can be error prone."
This pretty well insures that no Linux system will be in the
"Sites with longest running systems." No 34 labled as Linux
was previously IRIX and BSD so the data is bad.
I fear this data proves nothing.
Too bad, it would be good to know what the real answer is.
Also how uptime goes versus loading.
BobLQ
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