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Top Forums UNIX for Advanced & Expert Users Memory Usage(Physical) in one Word? Suse Linux. Post 302837429 by Corona688 on Thursday 25th of July 2013 06:17:52 PM
Old 07-25-2013
Short answer is, "cached" counts as some more "free". unused = free + cache.

So don't panic when you see "0% free"! There have been Linux admins who have rebooted their servers daily to 'clean the cache' until they realized that cache counts as free.

The reason cache is counted separately is because cache is important. You want there to be plenty of cache. If you have so many things running that you have no room for cache, that's bad.

Last edited by Corona688; 07-25-2013 at 07:46 PM..
 

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KSWITCH(1)						      General Commands Manual							KSWITCH(1)

NAME
kswitch - switch primary credential cache SYNOPSIS
kswitch {-c cachename | -p principal} DESCRIPTION
kswitch makes the specified credential cache the primary cache for the collection, if a cache collection is available. OPTIONS
-c cachename directly specifies the credential cache to be made primary. -p principal causes the cache collection to be searched for a cache containing credentials for principal. If one is found, that col- lection is made primary. ENVIRONMENT
kswitch uses the following environment variables: KRB5CCNAME Location of the default Kerberos 5 credentials (ticket) cache, in the form type:residual. If no type prefix is present, the FILE type is assumed. The type of the default cache may determine the availability of a cache collection; for instance, a default cache of type DIR causes caches within the directory to be present in the collection. FILES
/tmp/krb5cc_[uid] default location of Kerberos 5 credentials cache ([uid] is the decimal UID of the user). SEE ALSO
kinit(1), kdestroy(1), klist(1), kerberos(1) KSWITCH(1)
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