diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r-- | Documentation/kernel-parameters.txt | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index aae2282600ca..ce91560229f5 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt | |||
@@ -1132,9 +1132,9 @@ and is between 256 and 4096 characters. It is defined in the file | |||
1132 | when set. | 1132 | when set. |
1133 | Format: <int> | 1133 | Format: <int> |
1134 | 1134 | ||
1135 | noaliencache [MM, NUMA] Disables the allcoation of alien caches in | 1135 | noaliencache [MM, NUMA, SLAB] Disables the allocation of alien |
1136 | the slab allocator. Saves per-node memory, but will | 1136 | caches in the slab allocator. Saves per-node memory, |
1137 | impact performance on real NUMA hardware. | 1137 | but will impact performance. |
1138 | 1138 | ||
1139 | noalign [KNL,ARM] | 1139 | noalign [KNL,ARM] |
1140 | 1140 | ||
@@ -1613,6 +1613,37 @@ and is between 256 and 4096 characters. It is defined in the file | |||
1613 | 1613 | ||
1614 | slram= [HW,MTD] | 1614 | slram= [HW,MTD] |
1615 | 1615 | ||
1616 | slub_debug [MM, SLUB] | ||
1617 | Enabling slub_debug allows one to determine the culprit | ||
1618 | if slab objects become corrupted. Enabling slub_debug | ||
1619 | creates guard zones around objects and poisons objects | ||
1620 | when not in use. Also tracks the last alloc / free. | ||
1621 | For more information see Documentation/vm/slub.txt. | ||
1622 | |||
1623 | slub_max_order= [MM, SLUB] | ||
1624 | Determines the maximum allowed order for slabs. Setting | ||
1625 | this too high may cause fragmentation. | ||
1626 | For more information see Documentation/vm/slub.txt. | ||
1627 | |||
1628 | slub_min_objects= [MM, SLUB] | ||
1629 | The minimum objects per slab. SLUB will increase the | ||
1630 | slab order up to slub_max_order to generate a | ||
1631 | sufficiently big slab to satisfy the number of objects. | ||
1632 | The higher the number of objects the smaller the overhead | ||
1633 | of tracking slabs. | ||
1634 | For more information see Documentation/vm/slub.txt. | ||
1635 | |||
1636 | slub_min_order= [MM, SLUB] | ||
1637 | Determines the mininum page order for slabs. Must be | ||
1638 | lower than slub_max_order | ||
1639 | For more information see Documentation/vm/slub.txt. | ||
1640 | |||
1641 | slub_nomerge [MM, SLUB] | ||
1642 | Disable merging of slabs of similar size. May be | ||
1643 | necessary if there is some reason to distinguish | ||
1644 | allocs to different slabs. | ||
1645 | For more information see Documentation/vm/slub.txt. | ||
1646 | |||
1616 | smart2= [HW] | 1647 | smart2= [HW] |
1617 | Format: <io1>[,<io2>[,...,<io8>]] | 1648 | Format: <io1>[,<io2>[,...,<io8>]] |
1618 | 1649 | ||