Why are there no values for 'shared', 'buff/cache' and 'available' in the swap line of free?
Why are the last columns empty in the swap line?
$ free
total used free shared buff/cache available
Mem: 3912864 2255460 315388 249068 1342016 1123600
Swap: 4060156 0 4060156
memory swap free
edited 3 hours ago
terdon♦
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asked 3 hours ago
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Why are the last columns empty in the swap line?
$ free
total used free shared buff/cache available
Mem: 3912864 2255460 315388 249068 1342016 1123600
Swap: 4060156 0 4060156
memory swap free
edited 3 hours ago
terdon♦
131k32258436
asked 3 hours ago
beres_dropberes_drop
6
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beres_drop is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
Why are the last columns empty in the swap line?
$ free
total used free shared buff/cache available
Mem: 3912864 2255460 315388 249068 1342016 1123600
Swap: 4060156 0 4060156
memory swap free
edited 3 hours ago
terdon♦
131k32258436
asked 3 hours ago
beres_dropberes_drop
6
New contributor
beres_drop is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Why are the last columns empty in the swap line?
$ free
total used free shared buff/cache available
Mem: 3912864 2255460 315388 249068 1342016 1123600
Swap: 4060156 0 4060156
memory swap free
memory swap free
edited 3 hours ago
terdon♦
131k32258436
asked 3 hours ago
beres_dropberes_drop
6
New contributor
beres_drop is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited 3 hours ago
terdon♦
131k32258436
asked 3 hours ago
beres_dropberes_drop
6
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edited 3 hours ago
terdon♦
131k32258436
edited 3 hours ago
terdon♦
131k32258436
edited 3 hours ago
terdon♦
131k32258436
131k32258436
asked 3 hours ago
beres_dropberes_drop
6
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beres_drop is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 3 hours ago
beres_dropberes_drop
6
asked 3 hours ago
beres_dropberes_drop
6
6
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1 Answer
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swap is usually a file or a disk partition which is slower than memory. When there's not enough free memory to satisfy some program's request for memory allocation, then already allocated (but not used recently memory) is moved to swap.
Also kernel cannot work with something what was swapped. When it does, the memory must be freed and what was swapped must be "unswapped" back to the memory.
Caches and buffers are in memory only because they need to be fast.
answered 3 hours ago
Jakub JindraJakub Jindra
1709
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
votes
active
oldest
votes
swap is usually a file or a disk partition which is slower than memory. When there's not enough free memory to satisfy some program's request for memory allocation, then already allocated (but not used recently memory) is moved to swap.
Also kernel cannot work with something what was swapped. When it does, the memory must be freed and what was swapped must be "unswapped" back to the memory.
Caches and buffers are in memory only because they need to be fast.
answered 3 hours ago
Jakub JindraJakub Jindra
1709
add a comment |
swap is usually a file or a disk partition which is slower than memory. When there's not enough free memory to satisfy some program's request for memory allocation, then already allocated (but not used recently memory) is moved to swap.
Also kernel cannot work with something what was swapped. When it does, the memory must be freed and what was swapped must be "unswapped" back to the memory.
Caches and buffers are in memory only because they need to be fast.
answered 3 hours ago
Jakub JindraJakub Jindra
1709
add a comment |
swap is usually a file or a disk partition which is slower than memory. When there's not enough free memory to satisfy some program's request for memory allocation, then already allocated (but not used recently memory) is moved to swap.
Also kernel cannot work with something what was swapped. When it does, the memory must be freed and what was swapped must be "unswapped" back to the memory.
Caches and buffers are in memory only because they need to be fast.
answered 3 hours ago
Jakub JindraJakub Jindra
1709
swap is usually a file or a disk partition which is slower than memory. When there's not enough free memory to satisfy some program's request for memory allocation, then already allocated (but not used recently memory) is moved to swap.
Also kernel cannot work with something what was swapped. When it does, the memory must be freed and what was swapped must be "unswapped" back to the memory.
Caches and buffers are in memory only because they need to be fast.
answered 3 hours ago
Jakub JindraJakub Jindra
1709
edited 2 hours ago
answered 3 hours ago
Jakub JindraJakub Jindra
1709
answered 3 hours ago
Jakub JindraJakub Jindra
1709
answered 3 hours ago
Jakub JindraJakub Jindra
1709
1709
add a comment |
add a comment |
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