Hi, This is normal behaviour. Linux tries to use all available memory as cache. Whenever free memory is needed ,the os uses the memory which is reported as free . try to use : sar -B to see whether page-in or out is happening sar -W to see swapping activity /proc/meminfo and inact_dirty pages to get detailed memory usage sar -r : to see swap , cache usage. Regards, tolga ________________________________ From: redhat-list-bounces@xxxxxxxxxx on behalf of mac subbu Sent: Sun 3/5/2006 3:48 AM To: redhat-list@xxxxxxxxxx Subject: Red HAT AS3 memory issues HI, We have a linux AS3 on a server with 4 GB RAM At any point of time my Free -m Gives total of 4000 mb and used of 3900 and free 10 mb but my buffers/cache used is hardly 1000 mb and 3000 mb free Whereas the top always gives mem used 4000 mb avg and used 3972 Going by bufffers/cache i shudnt be having memory issues BUT our server is monitored and keeps throwing above 80% memory utilisation all the time why is there a discrepancy between TOP and FREE and which shud be used more definitely for memory analysis and why do we get over 80% used all the time when buffers/cache is low all times Any pointers would be appreciated regards -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=subscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjecthttps://www.redhat.com/mailman/listinfo/redhat-list
