Clarification On top command

[nitin.gizare at wipro.com]

Hello

 

We use top command for checking system performance and many found that
lot of memory is cached like one below

 

Cpu(s): 28.2%us,  0.1%sy,  0.0%ni, 71.7%id,  0.0%wa,  0.0%hi,  0.0%si,
0.0%st

Mem:  74175192k total, 73199960k used,   975232k free,   910828k buffers

Swap: 104856244k total,  1565532k used, 103290712k free, 65612288k
cached

 

Can some body help us understand what is really cached? Is this
available for required process on demand? 

Unable to get clear info about this.

 

Many thanks in advance.

 

Rgds

Nitin

 

 

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