Messages in this thread | | | Date | Thu, 15 Feb 2007 09:25:00 +0100 | From | Nadia Derbey <> | Subject | Re: [RFC][PATCH 6/6] automatic tuning applied to some kernel components |
| |
Eric W. Biederman wrote: > Nadia Derbey <Nadia.Derbey@bull.net> writes: > > >>But, what do you do with Oracle that's asking maxfiles to be set to 0x10000, >>while the default value might be enough for a system that's not running Oracle. >>I'm afraid that giving boot time values to the max_* tunables we will loose all >>the benefits from /proc (or /sys): it is impossible to anticipate what an OS >>will be used for. So allowing such things to be changed without having to reboot >>the machine is in my mind quite a powerful feature we should keep taking >>adavntage of. > > > I'm not saying remove user spaces' ability to set the > denial-of-service limits. I'm saying if they need to be frequently > changed we need to update the default so they are higher by default. > > There really is no cost in moving those values up and down it is just > an arbitrary integer used in comparisons. But if we can make a good > guess that still catches runaway programs before they kill the machine > but also allows more programs to work out of the box we are in better > shape. > OK, happy to see we are on the same wavelength (and sorry for misunderstanding what you were saying ;-) )
Regards, Nadia - 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/
| |