Re: About soft updates

2006-07-06 Thread Zoong PHAM
On Thursday, 6 July 2006 at 17:39:26 +0200, mickey wrote: > > Do you refer to systems with low memory (or at least the need to > > have the kernel not to occupy more memory than a minimum), for > > example? If not, some example would be really appreciated to get > > a deeper understanding of the t

Re: About soft updates

2006-07-06 Thread Pablo Marín Ramón
> > Do you refer to systems with low memory (or at least the need to > > have the kernel not to occupy more memory than a minimum), for > > example? If not, some example would be really appreciated to get > > a deeper understanding of the technology. > > you can start by reading some on the subjec

Re: About soft updates

2006-07-06 Thread mickey
On Thu, Jul 06, 2006 at 05:08:56PM +0200, Pablo Mar?n Ram?n wrote: > > > > > * Improved performance > > > > there are known scenarios where it does degrades performance. > > > I meant in the general case. > > me too > > Do you refer to systems with low memory (or at least the need to > have the ke

Re: About soft updates

2006-07-06 Thread mickey
On Thu, Jul 06, 2006 at 04:16:07PM +0200, Pablo Mar?n Ram?n wrote: > > > * Improved performance > > there are known scenarios where it does degrades performance. > > I meant in the general case. me too > > > * Faster recovery latency after a crash > > this is just not true at all. > > Effective

Re: About soft updates

2006-07-06 Thread Pablo Marín Ramón
> > > > * Improved performance > > > there are known scenarios where it does degrades performance. > > I meant in the general case. > me too Do you refer to systems with low memory (or at least the need to have the kernel not to occupy more memory than a minimum), for example? If not, some example

Re: About soft updates

2006-07-06 Thread Pablo Marín Ramón
> > * Improved performance > there are known scenarios where it does degrades performance. I meant in the general case. > > * Faster recovery latency after a crash > this is just not true at all. Effectively, background fsck isn't implemented yet under OpenBSD and NetBSD (FreeBSD has this featur

Re: About soft updates

2006-07-06 Thread Alexander Hall
Pablo Marmn Ramsn wrote: I've been trying to find out whether to enable soft updates or not, and I have not really seen any reason not to, other than that it is not enabled by default. Pros: * Improved performance * Faster recovery latency after a crash * Can handle a security problem that ca

Re: About soft updates

2006-07-06 Thread mickey
On Thu, Jul 06, 2006 at 12:35:51PM +0200, Pablo Mar?n Ram?n wrote: > > I've been trying to find out whether to enable soft updates or not, and > > I have not really seen any reason not to, other than that it is not > > enabled by default. > > Pros: > * Improved performance there are known scen

Re: About soft updates

2006-07-06 Thread Pablo Marín Ramón
> I've been trying to find out whether to enable soft updates or not, and > I have not really seen any reason not to, other than that it is not > enabled by default. Pros: * Improved performance * Faster recovery latency after a crash * Can handle a security problem that can occur (AFAIK) in ba

Re: About soft updates

2006-07-05 Thread Alexander Hall
Stuart Henderson wrote: On 2006/07/05 23:19, Alexander Hall wrote: I have not really seen any reason not to, other than that it is not enabled by default. Here's one reason you might sometimes not want it: space of deleted files isn't recovered until the delayed updates have been written out.

Re: About soft updates

2006-07-05 Thread Alexander Hall
Josh Grosse wrote: On Wed, Jul 05, 2006 at 11:19:04PM +0200, Alexander Hall wrote: Hi, I've been trying to find out whether to enable soft updates or not, and I have not really seen any reason not to, other than that it is not enabled by default. In order not to spread (or consume) FUD, I

Re: About soft updates

2006-07-05 Thread Stuart Henderson
On 2006/07/05 23:19, Alexander Hall wrote: > I have not really seen any reason not to, other than that it is not > enabled by default. Here's one reason you might sometimes not want it: space of deleted files isn't recovered until the delayed updates have been written out. This is particularly a

Re: About soft updates

2006-07-05 Thread Josh Grosse
On Wed, Jul 05, 2006 at 11:19:04PM +0200, Alexander Hall wrote: > Hi, > > I've been trying to find out whether to enable soft updates or not, and > I have not really seen any reason not to, other than that it is not > enabled by default. > > In order not to spread (or consume) FUD, I would lik

About soft updates

2006-07-05 Thread Alexander Hall
Hi, I've been trying to find out whether to enable soft updates or not, and I have not really seen any reason not to, other than that it is not enabled by default. In order not to spread (or consume) FUD, I would like to know if soft updates are considered reliable and in which situations,