Date: Wed, 11 Dec 2002 18:16:46 +0100 From: Jens Rehsack <rehsack@liwing.de> To: Paul Everlund <tdv94ped@cs.umu.se> Cc: C J Michaels <cjm2@earthling.net>, questions@FreeBSD.org Subject: Re: ...changed from TIME to SPACE Message-ID: <3DF772FE.7080108@liwing.de> References: <Pine.GSO.4.44.0212111629180.22586-100000@kvist.cs.umu.se> <1299.216.153.201.47.1039623659.squirrel@www.27in.tv> <3DF76F78.8040100@cs.umu.se>
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Paul Everlund wrote:
> C J Michaels wrote:
>
>> Some time in the recent past Paul Everlund scribbled:
>>
>> >Hi list!
>> >
>> >What does this mean?
>> >
>> ># sysctl kern.msgbuf
>> >[snip]
>> ><5>/var: optimization changed from TIME to SPACE
>> ><118>Dec 10 11:36:12 fw /kernel: /var: optimization changed from TIME to
>> >SPACE [snip]
>>
>> It means that your /var filesystem is nearly full. The kernel is now
>> trying to maximize the amout of free full blocks on the filesystem.
>>
>> >From fs(5) manpage:
>> ===
>> The element fs_optim specifies whether the file system should try to min-
>> imize the time spent allocating blocks, or if it should attempt to mini-
>> mize the space fragmentation on the disk. If the value of fs_minfree
>> (see above) is less than 10%, then the file system defaults to optimizing
>> for space to avoid running out of full sized blocks. If the value of
>> minfree is greater than or equal to 10%, fragmentation is unlikely to be
>> problematical, and the file system defaults to optimizing for time.
>> ===
>>
>> Some other good reads would be tunefs(8), newfs(8), and the mailing list
>> archives.
>
>
> Thank you Chris and Jens for your replies!
>
> A full file system on /var triggered it?
>
> # df -k
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/ad1s1a 65470 40452 19782 67% /
> /dev/ad0s1e 2030062 801262 1066396 43% /usr
> /dev/ad1s1e 35230 17770 14642 55% /var
> procfs 4 4 0 100% /proc
>
> It doesn't look full to me.
>
> Best regards,
> Paul
>
Try 'df -ik'
--
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