On Monday 01 January 2007 13:40, edwardspl@xxxxxxxxxx wrote: > Anne Wilson wrote: > >On Monday 01 January 2007 13:25, edwardspl@xxxxxxxxxx wrote: > >>Anne Wilson wrote: > >>>On Monday 01 January 2007 13:09, edwardspl@xxxxxxxxxx wrote: > >>>>Anne Wilson wrote: > >>>>>On Monday 01 January 2007 11:14, edwardspl@xxxxxxxxxx wrote: > >>>>>>Matt C wrote: > >>>>>>>>So, I think 10GB Disk space for install all packages is ok ? > >>>>>>> > >>>>>>>10GB is good for the root partition. Depending on what you're using > >>>>>>>the machine for, you might also want 20GB for /home. > >>>>>> > >>>>>>Sorry, what useful for root partition ? > >>>>> > >>>>>Edward, mine is a very average install - nowhere near everything. 'df > >>>>>-h' shows > >>>>>Filesystem Size Used Avail Use% Mounted on > >>>>>/dev/hdb1 12G 4.7G 6.7G 42% / > >>>>> > >>>>>I think you are going to need more space than you originally thought > >>>>> if you want such a lot installed. > >>>>> > >>>>>Anne > >>>> > >>>>All of the packages around 4.xGB size ? > >>> > >>>Yes, at this moment, but that doesn't show any indication of /temp > >>> usage, which can be quite high from time to time. > >>> > >>>>BTW, how about of your swap partition ? > >>> > >>>1GB. I had only 512MB on FC4 and it never caused me any problems. It > >>> was rarely used. > >> > >>1GB swap size for 512MB actual mem ? > >>So, your formula is swap = actual mem * 2 ( 2x) , right ? > > > >Yes. It used to be thought that you should always have 2x actual memory, > > but that was in the days when memory was small. It's said that nowadays > > you never need more than 512MB unless you have some activity that uses a > > large amount of memory over noticeable amounts of time. Others on the > > list will tell you which specific activities could cause that situation. > > With big drives it just seems easier to give a whole GB rather than split > > it. > > > >Anne > > So, is there a tool for changing the size of swap partition if more > application program need to be running ? I doubt it. There are other ways if you really need it, though. You can have more than one swap partition. If you have two drives it can be beneficial to have a swap on each, particularly if you have very frequent writes. There's also the possibility of a swap file, though I know nothing more about that. Most of the time linux handles swap so efficiently that it moves things in and out of memory, barely touching the swap partition at all. Is there anything about swap that particularly worries you? Have you already got a swap partition that you think may be too small, or are you just worrying in case you make the wrong decision? If disk space is not a problem to you, leave some of your disk empty. You can then use the additional space to rectify any problems caused by a wrong guess at the beginning. Anne
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