Messages in this thread | | | Date | Thu, 7 Nov 2002 18:19:49 +0100 | From | Pavel Machek <> | Subject | Re: [BK][PATCH] Reiser4, will double Linux FS performance, pleaseapply |
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Hi!
> > There is also a longer PhD thesis by her. 10 minutes is about as much > > work as I personally am willing to lose and try to remember. Avoiding > > 75% of writes instead of 20% is a substantial performance gain worth > > paying a cost for. Unfortunately it is not easy to say if it is worth > > that much cost, but I suspect it is. An approach we are exploring is > > for blocks to reach disk earlier than that if the device is not > > congested, on the grounds that if not much IO is occuring, then > > 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 > make any tradeoff between performance and speed they'd like including > setting it to 0, no?
It has traditionaly been 30 seconds, so I'd suggest default stays.
Pavel -- Worst form of spam? Adding advertisment signatures ala sourceforge.net. What goes next? Inserting advertisment *into* email? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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