> -----Original Message----- > From: fedora-list-bounces@xxxxxxxxxx > [mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of Dan Track > Sent: Tuesday, August 09, 2005 3:05 AM > To: jvian10@xxxxxxxxxxx; For users of Fedora Core releases > Subject: Re: Why am I using swap? > > On 8/8/05, Jeff Vian <jvian10@xxxxxxxxxxx> wrote: > > On Mon, 2005-08-08 at 16:40 +0100, Dan Track wrote: > > > HI > > > > > > I just rebooted my workstation, and I ran a "free -m". I realised > > > that I'm already using swap even though I've got so much > free ram. > > > Anyone know why this is? > > > > > > free -m > > > total used free shared > buffers cached > > > Mem: 1244 1227 17 0 > 37 636 > > ^^^^^^^^ What do you > mean "so much > > free ram". Whatever you have running is using almost 99% of your > > memory and only 17 mb free. While that small amount free is > normal on > > my systems, the amount used is much higher than I routinely > run. The > > tiny amount of swap used (13 mb) is insignificant. > > > > > -/+ buffers/cache: 553 691 > > > Swap: 1993 13 1979 > > > > > > > This is mine after running for more than 5 days. > > $ free -m > > total used free shared buffers cached > > Mem: 1011 991 19 0 13 703 > > -/+ buffers/cache: 274 736 > > Swap: 1023 0 1023 > > > > > > > Hi > > Thanks for the reply. The problem is that the system has only > been up for 2 minutes. With no additional services started > apart from the basic set of strtup services found in a > default install. I understand the linux kernel caches all the > freely available memory in order to make use of it, but why > is is swapping within two minutes of bootup when the line: > > -/+ buffers/cache: 553 691 > > shows there is still 691 MB free? > > Additionally is it true that the linux kernel can only take > up to a maximum of 800Mb for kernel usage while the rest is > left for user space? > > Thanks > Dan > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > run a "ps aux" It will return a: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.1 1692 516 ? S Aug06 0:00 init [3] root 2 0.0 0.0 0 0 ? S Aug06 0:00 [migration/0] root 3 0.0 0.0 0 0 ? SN Aug06 0:00 [ksoftirqd/0] root 4 0.0 0.0 0 0 ? S Aug06 0:00 [migration/1] root 5 0.0 0.0 0 0 ? SN Aug06 0:00 [ksoftirqd/1] root 6 0.0 0.0 0 0 ? S< Aug06 0:00 [events/0] root 7 0.0 0.0 0 0 ? S< Aug06 0:00 [events/1] root 8 0.0 0.0 0 0 ? S< Aug06 0:00 [khelper] root 9 0.0 0.0 0 0 ? S< Aug06 0:00 [kthread] =====================^^^ That column could shed some light as to what's taking up all your memory. -Mike
