On Sun, 30 Jul 2000, Doug Barton wrote:
>Adam wrote:
>>
>> On Fri, 28 Jul 2000, Doug Barton wrote:
>>
>> >Ted Sikora wrote:
>> >>
>> >> A while ago several people suggested using /tmp on a ramdisk along with
>> >> softupdates. Right now I am running several production servers with
>> >> 4.1-STABLE with softupdates. I'm really happy with the performance. What
>> >> benefits would I realize using /tmp on a ramdisk?
>> >
>> > CW on this is varied, but the current trend is that /tmp on a md is just a
>> >waste of ram, since (basically) everything in /tmp is in ram twice.
>> >
>> >Doug
>>
>> I thought that was MFS only and that MD took care of that issue?
>
> You're about the 4th person to say that, but so far no one has said how
>they are different. How does MD solve the problem of the stuff on its
>filesystem being in memory once (on the memory disk) and again in cache?
>
> I certainly don't mind being proved wrong on this, since I don't use ram
>disks myself, but it would be nice to have some details. :)
>From recollection I think its because the data is in memory (obvious) and
it also gets cached in the disk buffer or something like that :) I'm not
quite sure, thats why I cc'ed Matt.
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