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Memory-Info
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Memory management is an important and complex part of an operating system, and pretty much everything fails if it doesn't work correctly. For diagnosis the file /proc/meminfo shows the status of the internals of the Linux memory management. In FRITZ!OS parts of the physical memory are taken by the Bootloader and the Kernel binary. The remainder can be used for the OS, the amount can be seen in MemTotal.
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Memory-Info[edit]
See also the table with FRITZ!OS 7.50+ news below and the total Overview of F!OS news!
Daily updated index of all memory info found scanning Supportdata-Probes. Last update: 2024-12-31 06:53 GMT.
The label (memory) in the Parameter column shows there are other objects in this wiki using this name.
The Mod column shows the amount of models using the respective parameter. Click the column header to sort by this number.
This list is sorted as it appears in meminfo. Click the Parameter column header to sort it alphabetically.
The Description is mostly taken from the meminfo part of the Linux procfs documentation[1].
| Parameter | Mod | Firmware | Description | Percent of MemTotal | Size/Bytes | Type | Origin |
|---|---|---|---|---|---|---|---|
| MemTotal | 144 | 4.52 - 8.00 | Total usable ram (i.e. physical ram minus a few reserved bits and the kernel binary code). | 100% | 14.0M - 1761M | Mem | Linux |
| MemFree | 144 | 4.52 - 8.00 | The sum of LowFree + HighFree. | 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 4%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 5%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 6%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 7%, 70%, 71%, 72%, 73%, 74%, 8%, 9% | 672k - 1215M | Mem | Linux |
| MemAvailable | 65 | 6.83 - 8.00 | An estimate of how much memory is available for starting new applications, without swapping. Calculated from MemFree, SReclaimable, the size of the file LRU lists, and the low watermarks in each zone. The estimate takes into account that the system needs some page cache to function well, and that not all reclaimable slab will be reclaimable, due to items being in use. The impact of those factors will vary from system to system. | 10%, 11%, 12%, 13%, 14%, 15%, 17%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 29%, 30%, 31%, 32%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 77%, 78%, 81%, 82%, 83%, 85%, 86%, 87% | 7.3M - 1258M | Mem | Linux |
| Buffers | 144 | 4.52 - 8.00 | Relatively temporary storage for raw disk blocks shouldn't get tremendously large (20MB or so). | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 17%, 2%, 21%, 3%, 4%, 41%, 48%, 5%, 53%, 6%, 7%, 8%, 9% | 0 - 186M | Mem | Linux |
| Cached | 144 | 4.52 - 8.00 | In-memory cache for files read from the disk (the pagecache). Doesn't include SwapCached. | 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 4%, 40%, 41%, 42%, 43%, 44%, 47%, 48%, 5%, 6%, 66%, 67%, 7%, 8%, 9% | 3.5M - 831M | Mem | Linux |
| SwapCached | 144 | 4.52 - 8.00 | Memory that once was swapped out, is swapped back in but still also is in the swapfile (if memory is needed it doesn't need to be swapped out AGAIN because it is already in the swapfile. This saves I/O). | 0%, 1%, 2% | 0 - 1.2M | Mem | Linux |
| Active (memory) | 144 | 4.52 - 8.00 | Memory that has been used more recently and usually not reclaimed unless absolutely necessary. | 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 4%, 40%, 41%, 42%, 43%, 44%, 46%, 47%, 5%, 6%, 7%, 8%, 9% | 5.1M - 388M | Mem | Linux |
| Inactive | 144 | 4.52 - 8.00 | Memory which has been less recently used. It is more eligible to be reclaimed for other purposes. | 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 4%, 40%, 42%, 43%, 44%, 5%, 6%, 61%, 7%, 8%, 9% | 552k - 518M | Mem | Linux |
| Active(anon) | 114 | 5.04 - 8.00 | Anonymous memory that has been used more recently and usually not swapped out. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 28%, 3%, 30%, 31%, 32%, 36%, 4%, 5%, 6%, 7%, 8%, 9% | 1.4M - 87.3M | Mem | Linux |
| Active(file) | 114 | 5.04 - 8.00 | Pagecache memory that has been used more recently and usually not reclaimed until needed. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 33%, 36%, 4%, 5%, 6%, 7%, 8%, 9% | 0 - 331M | Mem | Linux |
| Inactive(anon) | 114 | 5.04 - 8.00 | Anonymous memory that has not been used recently and can be swapped out. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 17%, 2%, 3%, 5%, 7%, 8%, 9% | 0 - 92.3M | Mem | Linux |
| Inactive(file) | 114 | 5.04 - 8.00 | Pagecache memory that can be reclaimed without huge performance impact. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 4%, 41%, 42%, 5%, 6%, 60%, 61%, 7%, 8%, 9% | 0 - 515M | Mem | Linux |
| HighTotal | 48 | 4.52 - 7.90 | Total amount of Highmem. Highmem is all memory above ~860MB of physical memory. Highmem areas are for use by userspace programs, or for the pagecache. The kernel must use tricks to access this memory, making it slower to access than lowmem. | 0%, 13%, 27%, 28%, 46% | 0 - 392M | Mem | Linux |
| HighFree | 48 | 4.52 - 7.90 | Amount of free Highmem. Highmem is all memory above ~860MB of physical memory. Highmem areas are for use by userspace programs, or for the pagecache. The kernel must use tricks to access this memory, making it slower to access than lowmem. | 0%, 24%, 25%, 26%, 39%, 40%, 6% | 0 - 341M | Mem | Linux |
| LowTotal | 48 | 4.52 - 7.90 | Total amount of Lowmem. Lowmem is memory which can be used for everything that highmem can be used for, but it is also available for the kernel's use for its own data structures. Among many other things, it is where everything from the Slab is allocated. Bad things happen when you're out of lowmem. | 100%, 53%, 71%, 72%, 86% | 14.0M - 1761M | Mem | Linux |
| LowFree | 48 | 4.52 - 7.90 | Amount of free Lowmem. Lowmem is memory which can be used for everything that highmem can be used for, but it is also available for the kernel's use for its own data structures. Among many other things, it is where everything from the Slab is allocated. Bad things happen when you're out of lowmem. | 10%, 12%, 13%, 14%, 15%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 35%, 36%, 37%, 39%, 4%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 49%, 5%, 50%, 51%, 52%, 53%, 56%, 57%, 6%, 61%, 62%, 63%, 64%, 66%, 67%, 68%, 7%, 8%, 9% | 672k - 1215M | Mem | Linux |
| Unevictable | 111 | 5.04 - 8.00 | Unevictable pages can't be swapped out for a variety of reasons. | 0%, 1%, 10%, 11%, 2%, 28%, 3%, 34%, 35%, 36%, 38%, 39%, 4%, 5%, 6%, 7%, 8%, 9% | 0 - 96.6M | Mem | Linux |
| Mlocked | 111 | 5.04 - 8.00 | Pages locked to memory using the mlock() system call. Mlocked pages are also Unevictable. | 0%, 1%, 2%, 28%, 3%, 34%, 35%, 36%, 38%, 39%, 4%, 5%, 6%, 7%, 8%, 9% | 0 - 96.6M | Mem | Linux |
| SwapTotal | 144 | 4.52 - 8.00 | Total amount of swap space available | 0%, 12%, 13%, 14%, 15%, 17%, 35%, 36%, 37%, 6%, 7% | 0 - 32.0M | Mem | Linux |
| SwapFree | 144 | 4.52 - 8.00 | Memory which has been evicted from RAM, and is temporarily on the disk | 0%, 12%, 13%, 14%, 15%, 16%, 17%, 24%, 26%, 27%, 3%, 30%, 31%, 33%, 34%, 35%, 36%, 4%, 6%, 7% | 0 - 32.0M | Mem | Linux |
| Dirty | 144 | 4.52 - 8.00 | Memory which is waiting to get written back to the disk. | 0% | 0 - 36.0k | Mem | Linux |
| Writeback | 144 | 4.52 - 8.00 | Memory which is actively being written back to the disk. | 0% | 0 - 4.0k | Mem | Linux |
| AnonPages | 123 | 4.68 - 8.00 | Non-file backed pages mapped into userspace page tables. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 28%, 3%, 30%, 31%, 32%, 34%, 36%, 39%, 4%, 40%, 41%, 43%, 44%, 45%, 5%, 6%, 7%, 8%, 9% | 1.8M - 112M | Mem | Linux |
| Mapped | 144 | 4.52 - 8.00 | Files which have been mmaped, such as libraries. | 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 3%, 30%, 31%, 32%, 35%, 36%, 37%, 38%, 4%, 40%, 43%, 44%, 5%, 6%, 7%, 8%, 9% | 1.9M - 43.1M | Mem | Linux |
| Shmem | 107 | 5.04 - 8.00 | Total memory used by shared memory (shmem) and tmpfs. | 0%, 1%, 14%, 18%, 2%, 3%, 4%, 6% | 0 - 135M | Mem | Linux |
| KReclaimable | 5 | 7.59 - 7.61 | Kernel allocations that the kernel will attempt to reclaim under memory pressure. Includes SReclaimable (below), and other direct allocations with a shrinker. | 0%, 1% | 2.2M - 14.8M | Mem | Linux |
| Slab | 144 | 4.52 - 8.00 | In-kernel data structures cache. | 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 36%, 37%, 4%, 41%, 47%, 5%, 52%, 54%, 6%, 7%, 8%, 9% | 2.7M - 387M | Mem | Linux |
| SReclaimable | 123 | 4.68 - 8.00 | Part of Slab, that might be reclaimed, such as caches. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 17%, 18%, 19%, 2%, 21%, 22%, 23%, 24%, 3%, 30%, 33%, 4%, 41%, 5%, 6%, 7%, 8%, 9% | 336k - 205M | Mem | Linux |
| SUnreclaim | 123 | 4.68 - 8.00 | Part of Slab, that cannot be reclaimed on memory pressure. | 0%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 4%, 44%, 5%, 50%, 52%, 6%, 7%, 8%, 9% | 0 - 373M | Mem | Linux |
| KernelStack | 107 | 5.04 - 8.00 | The memory the kernel stack uses. This is not reclaimable. | 0%, 1%, 2% | 544k - 3.8M | Mem | Linux |
| PageTables | 144 | 4.52 - 8.00 | Amount of memory dedicated to the lowest level of page tables. | 0%, 1%, 2%, 5% | 140k - 14.4M | Mem | Linux |
| NFS_Unstable | 123 | 4.68 - 8.00 | NFS pages sent to the server, but not yet committed to stable storage | 0% | 0 | Mem | Linux |
| Bounce | 123 | 4.68 - 8.00 | Memory used for block device 'bounce buffers'. | 0% | 0 | Mem | Linux |
| WritebackTmp | 114 | 5.04 - 8.00 | Memory used by FUSE for temporary writeback buffers. | 0% | 0 | Mem | Linux |
| CommitLimit | 144 | 4.52 - 8.00 | Based on the overcommit ratio ('vm.overcommit_ratio'), this is the total amount of memory currently available to be allocated on the system. This limit is only adhered to if strict overcommit accounting is enabled (mode 2 in 'vm.overcommit_memory'). The CommitLimit is calculated with the following formula: CommitLimit = ([total RAM pages] - [total huge TLB pages]) * overcommit_ratio / 100 + [total swap pages] For example, on a system with 1G of physical RAM and 7G of swap with a `vm.overcommit_ratio` of 30 it would yield a CommitLimit of 7.3G. For more details, see the memory overcommit documentation in vm/overcommit-accounting. | 100%, 106%, 112%, 49%, 50%, 56%, 57%, 63%, 64%, 65%, 67%, 85%, 86%, 87% | 7.0M - 880M | Mem | Linux |
| Committed_AS | 144 | 4.52 - 8.00 | The amount of memory presently allocated on the system. The committed memory is a sum of all of the memory which has been allocated by processes, even if it has not been 'used' by them as of yet. A process which malloc()'s 1G of memory, but only touches 300M of it will show up as using 1G. This 1G is memory which has been 'committed' to by the VM and can be used at any time by the allocating application. With strict overcommit enabled on the system (mode 2 in 'vm.overcommit_memory'), allocations which would exceed the CommitLimit (detailed above) will not be permitted. This is useful if one needs to guarantee that processes will not fail due to lack of memory once that memory has been successfully allocated. | 1%, 10%, 101%, 109%, 11%, 12%, 13%, 14%, 141%, 142%, 144%, 145%, 15%, 157%, 16%, 17%, 179%, 18%, 19%, 199%, 2%, 20%, 21%, 22%, 224%, 23%, 238%, 24%, 25%, 26%, 27%, 28%, 29%, 3%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 4%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 5%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 6%, 60%, 61%, 62%, 63%, 65%, 67%, 68%, 69%, 7%, 70%, 71%, 73%, 74%, 75%, 76%, 78%, 8%, 82%, 86%, 88%, 89%, 9%, 90% | 3.6M - 887M | Mem | Linux |
| VmallocTotal | 144 | 4.52 - 8.00 | Total size of vmalloc memory area. | 103%, 104%, 111%, 115%, 116%, 117%, 121%, 122%, 123%, 124%, 129%, 14%, 143%, 144%, 145%, 146%, 1708%, 1710%, 1711%, 1718%, 1730%, 1755%, 1765%, 1767%, 1769%, 1775%, 1782%, 1783%, 1819%, 1825%, 1826%, 1841%, 1865%, 1873%, 1875%, 1876%, 1885%, 1887%, 1895%, 1896%, 1899%, 1904%, 1905%, 1913%, 1924%, 1950%, 1986%, 1992%, 1994%, 2016%, 2024%, 2025%, 220%, 222%, 258%, 269%, 27%, 28%, 310%, 311%, 328%, 329%, 331%, 332%, 334%, 337%, 338%, 339%, 3432%, 3457%, 3458%, 3461%, 3463%, 3465%, 3467%, 3468%, 3527%, 355%, 360%, 3600%, 362%, 363%, 3642%, 3644%, 3665%, 371%, 412%, 413%, 414%, 415%, 425%, 426%, 430%, 431%, 432%, 433%, 436%, 437%, 438%, 441%, 46%, 55%, 59%, 715%, 716%, 721%, 722%, 727%, 7287%, 7324%, 840%, 841%, 847%, 855%, 872%, 873%, 879%, 880%, 881%, 882%, 883%, 884%, 889%, 890%, 893%, 895%, 896%, 897%, 898%, 899%, 903%, 909%, 911%, 912%, 913%, 915%, 916%, 917%, 919%, 920%, 921%, 922%, 924%, 925%, 926%, 927%, 929%, 930%, 931%, 933%, 936%, 939%, 941%, 950%, 952%, 953%, 954%, 955%, 957%, 964%, 970%, 973%, 974%, 977%, 979%, 981%, 982%, 983%, 984%, 985% | 240M - 2080M | Mem | Linux |
| VmallocUsed | 144 | 4.52 - 8.00 | Amount of vmalloc area which is used. | 0%, 1%, 10%, 11%, 13%, 15%, 16%, 17%, 18%, 19%, 2%, 20%, 209%, 3%, 31%, 32%, 33%, 39%, 4%, 40%, 41%, 5%, 6%, 7%, 8%, 9% | 0 - 518M | Mem | Linux |
| VmallocChunk | 144 | 4.52 - 8.00 | Largest contiguous block of vmalloc area which is free. | 0%, 100%, 103%, 105%, 107%, 108%, 110%, 111%, 112%, 123%, 124%, 126%, 1690%, 1691%, 1700%, 1701%, 1702%, 1703%, 1704%, 1706%, 1710%, 1718%, 1719%, 172%, 1721%, 1727%, 173%, 1737%, 1738%, 174%, 1748%, 175%, 1764%, 1765%, 1772%, 178%, 1792%, 1805%, 1812%, 1813%, 182%, 183%, 1837%, 1838%, 184%, 1843%, 1845%, 185%, 1850%, 1858%, 186%, 1861%, 1866%, 187%, 1873%, 1884%, 1885%, 1893%, 1896%, 1897%, 1910%, 1943%, 1945%, 1948%, 1952%, 1959%, 1965%, 1973%, 1975%, 1976%, 1978%, 276%, 283%, 284%, 285%, 286%, 332%, 333%, 3425%, 3444%, 3446%, 3448%, 3449%, 3451%, 3452%, 3453%, 3454%, 3456%, 3457%, 3519%, 3595%, 3631%, 3636%, 3652%, 399%, 400%, 404%, 405%, 406%, 407%, 408%, 409%, 410%, 411%, 412%, 413%, 414%, 415%, 416%, 417%, 418%, 419%, 420%, 421%, 422%, 423%, 424%, 431%, 432%, 438%, 52%, 7270%, 7306%, 7309%, 7313%, 807%, 808%, 814%, 816%, 824%, 83%, 85%, 850%, 854%, 862%, 863%, 865%, 868%, 870%, 871%, 874%, 875%, 880%, 885%, 887%, 888%, 890%, 891%, 894%, 896%, 897%, 90%, 900%, 901%, 903%, 905%, 906%, 908%, 909%, 91%, 911%, 912%, 913%, 914%, 916%, 917%, 92%, 921%, 922%, 923%, 927%, 928%, 929%, 93%, 931%, 932%, 933%, 934%, 935%, 938%, 940%, 941%, 942%, 943%, 944%, 947%, 948%, 951%, 952%, 956%, 958%, 959%, 960%, 961%, 99% | 0 - 1141M | Mem | Linux |
| AnonHugePages | 4 | 7.01 - 7.61 | Anonymous transparent huge pages currently used by the system. | 0%, 4% | 0 - 32.0M | Mem | Linux |
| ShmemHugePages | 4 | 7.13 - 7.61 | Total amount of huge pages used by shared memory (shmem) and tmpfs. | 0% | 0 | Mem | Linux |
| ShmemPmdMapped | 4 | 7.13 - 7.61 | The ammount of shared memory (shmem) and tmpfs backed by huge pages. | 0% | 0 | Mem | Linux |
| FileHugePages | 1 | 7.59 - 7.61 | TODO | 0% | 0 | Mem | Linux |
| FilePmdMapped | 1 | 7.59 - 7.61 | TODO | 0% | 0 | Mem | Linux |
| Percpu | 6 | 7.39 - 7.61 | The amount of memory dedicated to per-cpu objects. For scalability and memory access speed optimization, many kernel-specific objects were broken down in such a way to have a copy of that object for each CPU on the system (per-cpu). These objects can be statically allocated on boot or dynamically allocated while the system is running. | 0% | 96.0k - 592k | Mem | Linux |
| CmaTotal | 21 | 7.13 - 8.00 | The total amount of memory reserved for Contiguous Memory Allocation. | 0%, 10%, 13%, 14%, 18%, 21%, 24%, 33%, 4%, 47%, 58%, 9% | 4.0M - 320M | Mem | Linux |
| CmaFree | 21 | 7.13 - 8.00 | The free amount of memory available for Contiguous Memory Allocation. | 0%, 1%, 11%, 14%, 17%, 18%, 19%, 2%, 3%, 4%, 6%, 7%, 8%, 9% | 240k - 192M | Mem | Linux |
| HugePages_Total | 4 | 7.01 - 7.61 | The size of the pool of huge pages. | 0% | 0 | Mem | Linux |
| HugePages_Free | 4 | 7.01 - 7.61 | The number of huge pages in the pool that are not yet allocated. | 0% | 0 | Mem | Linux |
| HugePages_Rsvd | 4 | 7.01 - 7.61 | The number of huge pages for which a commitment to allocate from the pool has been made, but no allocation has yet been made. | 0% | 0 | Mem | Linux |
| HugePages_Surp | 4 | 7.01 - 7.61 | The number of huge pages in the pool above the value in /proc/sys/vm/nr_hugepages. | 0% | 0 | Mem | Linux |
| Hugepagesize | 4 | 7.01 - 7.61 | The size of a huge page. | 0% | 2.0M - 4.0M | Mem | Linux |
| Hugetlb | 1 | 7.59 - 7.61 | Total amount of memory (in kB), consumed by huge pages of all sizes. If huge pages of different sizes are in use, this number will exceed HugePages_Total * Hugepagesize. | 0% | 0 | Mem | Linux |
| DirectMap4k | 7 | 6.08 - 7.61 | Counts the number of pages mapped as 4KB pages. x86 specific. Gives an indication of the TLB load, not memory use. | 0%, 1%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 2%, 4%, 5%, 6%, 8%, 9% | 6.0M - 128M | Mem | Linux |
| DirectMap2M | 4 | 6.08 - 7.29 | Counts the number of pages mapped as 2MB pages. x86 specific. Gives an indication of the TLB load, not memory use. | 209%, 210%, 211%, 212%, 213%, 214%, 215%, 217%, 219%, 221%, 95%, 96%, 97% | 476M - 698M | Mem | Linux |
| DirectMap4M | 4 | 7.13 - 7.61 | Counts the number of pages mapped as 4MB pages. x86 specific. Gives an indication of the TLB load, not memory use. | 87%, 88%, 89%, 90%, 91%, 92%, 93% | 612M - 1508M | Mem | Linux |
| Reserved | 39 | 5.04 - 6.93 | Amount of Memory reseved to the Kernel, which is not intended to be returned.. | 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 23%, 25%, 6%, 7%, 8%, 9% | 4.5M - 19.1M | Mem | Linux |
| 57 parameters | |||||||
FRITZ!OS 7.5x[edit]
Memory-Info parameters which are new in FRITZ!OS 7.50+ and its 7.39+ Labors. See also the total Overview of F!OS news!
Click the Firmware column header twice to list the latest additions first.
| Parameter | Mod | Firmware | Description | Percent of MemTotal | Size/Bytes | Type | Origin |
|---|---|---|---|---|---|---|---|
| KReclaimable | 5 | 7.59 - 7.61 | Kernel allocations that the kernel will attempt to reclaim under memory pressure. Includes SReclaimable (below), and other direct allocations with a shrinker. | 0%, 1% | 2.2M - 14.8M | Mem | Linux |
| FileHugePages | 1 | 7.59 - 7.61 | TODO | 0% | 0 | Mem | Linux |
| FilePmdMapped | 1 | 7.59 - 7.61 | TODO | 0% | 0 | Mem | Linux |
| Percpu | 6 | 7.39 - 7.61 | The amount of memory dedicated to per-cpu objects. For scalability and memory access speed optimization, many kernel-specific objects were broken down in such a way to have a copy of that object for each CPU on the system (per-cpu). These objects can be statically allocated on boot or dynamically allocated while the system is running. | 0% | 96.0k - 592k | Mem | Linux |
| Hugetlb | 1 | 7.59 - 7.61 | Total amount of memory (in kB), consumed by huge pages of all sizes. If huge pages of different sizes are in use, this number will exceed HugePages_Total * Hugepagesize. | 0% | 0 | Mem | Linux |
| 5 news in 7.5x | |||||||
