Feature #296 ยป ksm_stat.sh
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#!/bin/bash
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if [ "`cat /sys/kernel/mm/ksm/run`" -ne 1 ] ; then |
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echo 'KSM is not enabled. Run echo 1 > /sys/kernel/mm/ksm/run' to enable it. |
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exit 1
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fi
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echo Shared memory is $((`cat /sys/kernel/mm/ksm/pages_shared`*`getconf PAGE_SIZE`/1024/1024)) MB |
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echo Saved memory is $((`cat /sys/kernel/mm/ksm/pages_sharing`*`getconf PAGE_SIZE`/1024/1024)) MB |
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echo Unshared memory is $((`cat /sys/kernel/mm/ksm/pages_unshared`*`getconf PAGE_SIZE`/1024/1024)) MB |
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echo Volatile memory is $((`cat /sys/kernel/mm/ksm/pages_volatile`*`getconf PAGE_SIZE`/1024/1024)) MB |
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if ! `type bc &>/dev/null` ; then |
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echo "bc is missing or not in path, skipping ratio calculation" |
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exit 1
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fi
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if [ "`cat /sys/kernel/mm/ksm/pages_sharing`" -ne 0 ] ; then |
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echo -n "Shared pages usage ratio is ";echo "scale=2;`cat /sys/kernel/mm/ksm/pages_sharing`/`cat /sys/kernel/mm/ksm/pages_shared`"|bc -q |
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echo -n "Unshared pages usage ratio is ";echo "scale=2;`cat /sys/kernel/mm/ksm/pages_unshared`/`cat /sys/kernel/mm/ksm/pages_sharing`"|bc -q |
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fi
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