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RSInfoMinds, a web based IT Training and Consultancy firm. It is established with high dreams in training people in IT Infrastructure Field. We provide Online and Class Room training in various fields of IT Infrastructure Management.

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We are specialized in the below courses:

Redhat Linux Admin Redhat Linux Cluster
Redhat Virutualization IBM AIX Admin
IBM AIX Virtualization IBM AIX Cluster
HP Unix Admin HP Unix Cluster
HP Unix Virtualization Shell Scripting
Veritas Volume Manager Veritas Cluster
Oracle Core DBA VMWare


We provide training in such a way, So that you get in depth knowledge on the Courses you look for.

And we ensure you are very confident from each and every Techincal aspect that the IT Industry needs and expects from you.

We also conduct Workshops on the latest technology and the real time faculties sharing their work experiences to make you the best.

Thursday 19 June 2014

Linux Buffer Cache Clean Up

Every 1.0s: free -m                                                                                                                                                                   total       used       free     shared    buffers     cached
Mem:          1998        631       1367          0          2        423
-/+ buffers/cache:        205       1792
Swap:         3999          0       3999

echo 3 > /proc/sys/vm/drop_caches --> Command to clear buffer cache.

Every 1.0s: free -m      

         total       used       free     shared    buffers     cached
Mem:          1998        629       1369          0          0        422
-/+ buffers/cache:        206       1792
Swap:         3999          0       3999

Mem:   2046792k total,   652248k used,  1394544k free,     1536k buffers
Swap:  4095992k total,        0k used,  4095992k free,   438744k cached

echo 3 > /proc/sys/vm/drop_caches

Mem:   2046792k total,   648288k used,  1398504k free,      348k buffers
Swap:  4095992k total,        0k used,  4095992k free,   432796k cached

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