Re: [BK][PATCH] Reiser4, will double Linux FS performance,

[Daniel Egger]

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Am Mit, 2002-11-06 um 02.33 schrieb reiser:

> There is also a longer PhD thesis by her.  10 minutes is about as much=20
> work as I personally am willing to lose and try to remember.  Avoiding=20
> 75% of writes instead of 20% is a substantial performance gain worth=20
> paying a cost for.  Unfortunately it is not easy to say if it is worth=20
> that much cost, but I suspect it is.  An approach we are exploring is=20
> for blocks to reach disk earlier than that if the device is not=20
> congested, on the grounds that if not much IO is occuring, then=20
> performance is not important.

Assuming your 10 minutes are just a default and tunable by sysctl I
hardly can see any problems at all. Paranoid people can set it to=20
make any tradeoff between performance and speed they'd like including
setting it to 0, no?
=20
--=20
Servus,
       Daniel

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