Editing Free (command)
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− | + | <code>free</code> <ref>http://man7.org/linux/man-pages/man1/free.1.html</ref> display amount of free and used [[memory]] in the system | |
− | <code>free</code> | ||
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free -h | free -h | ||
− | total used free shared | + | total used free shared buff/cache available |
Mem: 503G 21G 43G 2.1M 438G 478G | Mem: 503G 21G 43G 2.1M 438G 478G | ||
Swap: 975M 50M 925M | Swap: 975M 50M 925M | ||
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free | free | ||
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Swap: 999420 51456 947964 | Swap: 999420 51456 947964 | ||
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free -h | free -h | ||
total used free shared buff/cache available | total used free shared buff/cache available | ||
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[[Swap]]: 0B 0B 0B | [[Swap]]: 0B 0B 0B | ||
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== Activities == | == Activities == | ||
− | # | + | # Emptying the buffers cache: <code>free -h && [[sync]] && echo 3 > /proc/sys/vm/[[drop_caches]] && free -h</code><ref>https://unix.stackexchange.com/questions/87908/how-do-you-empty-the-buffers-and-cache-on-a-linux-system</ref> |
# Use <code>[[fio]]</code> with <code>direct=0</code> to fill up your cache. | # Use <code>[[fio]]</code> with <code>direct=0</code> to fill up your cache. | ||
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== See also == | == See also == | ||
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* <code>[[sync]]</code> | * <code>[[sync]]</code> | ||
* <code>[[sar -r]]</code> | * <code>[[sar -r]]</code> |
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