Re: [Savannah-hackers-public] Re: locate on sv.gnu.org?

[Sylvain Beucler]

Hi

For the record, I'm ok with re-enabling locate, but I'd like to see a
weekly load graph to know more precisely when it's better to run it.

Is there an easy gnuplot option for this?



On Tue, Jan 09, 2007 at 09:06:15AM -0600, Karl Berry wrote:
>     'info nice' says that's an advisory to the scheduler, apparently
>     without clear meaning.
> 
> My experience is that it helps a little, but not as much as one would
> like.  Certainly can't hurt, though.
> 
>     ... assuming the load is a meaningful value to determine the server's
>     activity, though. 
> 
> My experience is that it is more meaningful than often said, but
> certainly not infallible.  Of course there are lots of other system load
> gathering programs, like sa.
> 
>     I never really understood how that works.
> 
> My understanding is that it's the average length of the run queue, ie,
> the number of processes that would like to run but don't have the cpu.
> 
>     Do you wish to look for such pattern in:
>     /vservers/savannah/var/www/uptimes.txt
> 
> Well, just because it was easy, I tried to look for times when the load
> average was less than one:
> 
> awk '$10 < 1 {print substr($1,0,2)}' \
>   /vservers/savannah/var/www/uptimes.txt |sort | uniq -c | sort -nr 
> 
> The results (below) seem quite surprising, that the middle of the EST
> afternoon is the quietest time.  But some greps indicate similar
> numbers, so I guess it's right.  
>   
> So maybe set it up to run with nice -19 once a week at Sunday 13:30?  I
> doubt that will impact anything too severely.  We can always revisit
> later, too.
> 
> BTW, without dates, uptimes.txt seems like it can only be used for such
> massive stats, not for tracking actual problems when the load was high.
> Does it have another purpose?  Could do a date>> to the file once a day.
> 
> Thanks,
> Karl
> 
>   17231 13
>   17063 14
>   16591 15
>   16577 12
>   16356 18
>   15024 17
>   13095 16
>   12981 23
>   12082 11
>   12008 03
>   11941 19
>   11812 05
>   11793 21
>   11283 22
>   11131 04
>   10595 00
>   10589 02
>    9948 01
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>    7250 10
>    6561 09
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>    2848 08
>     844 07