diff options
Diffstat (limited to 'man5/slabinfo.5')
| -rw-r--r-- | man5/slabinfo.5 | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/man5/slabinfo.5 b/man5/slabinfo.5 index e27ff80..73f7f9e 100644 --- a/man5/slabinfo.5 +++ b/man5/slabinfo.5 @@ -3,7 +3,7 @@ .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" -.TH slabinfo 5 2023-02-05 "Linux man-pages 6.05.01" +.TH slabinfo 5 2023-10-31 "Linux man-pages 6.7" .SH NAME slabinfo \- kernel slab allocator statistics .SH SYNOPSIS @@ -19,7 +19,7 @@ The file gives statistics on these caches. The following (edited) output shows an example of the contents of this file: -.PP +.P .EX $ \fBsudo cat /proc/slabinfo\fP slabinfo \- version: 2.1 @@ -29,13 +29,13 @@ sighand_cache 355 405 2112 15 8 : tunables 0 0 0 : slabdata 27 27 0 kmalloc\-8192 96 96 8192 4 8 : tunables 0 0 0 : slabdata 24 24 0 \&... .EE -.PP +.P The first line of output includes a version number, which allows an application that is reading the file to handle changes in the file format. (See VERSIONS, below.) The next line lists the names of the columns in the remaining lines. -.PP +.P Each of the remaining lines displays information about a specified cache. Following the cache name, the output shown in each line shows three components for each cache: @@ -45,7 +45,7 @@ statistics tunables .IP \[bu] slabdata -.PP +.P The statistics are as follows: .TP .I active_objs @@ -63,7 +63,7 @@ The number of objects stored in each slab. .TP .I pagesperslab The number of pages allocated for each slab. -.PP +.P The .I tunables entries in each line show tunable parameters for the corresponding cache. @@ -74,13 +74,13 @@ When using the older SLAB allocator, the tunables for a particular cache can be set by writing lines of the following form to .IR /proc/slabinfo : -.PP +.P .in +4n .EX # \fBecho \[aq]name limit batchcount sharedfactor\[aq] > /proc/slabinfo\fP .EE .in -.PP +.P Here, .I name is the cache name, and @@ -100,7 +100,7 @@ and should be nonnegative. If any of the specified values is invalid, the cache settings are left unchanged. -.PP +.P The .I tunables entries in each line contain the following fields: @@ -121,7 +121,7 @@ when refilling the available object list. .I sharedfactor [To be documented] .\" -.PP +.P The .I slabdata entries in each line contain the following fields: @@ -134,12 +134,12 @@ The total number of slabs. .TP .I sharedavail [To be documented] -.PP +.P Note that because of object alignment and slab cache overhead, objects are not normally packed tightly into pages. Pages with even one in-use object are considered in-use and cannot be freed. -.PP +.P Kernels configured with .B CONFIG_DEBUG_SLAB will also have additional statistics fields in each line, @@ -206,14 +206,14 @@ Only root can read and (if the kernel was configured with write the .I /proc/slabinfo file. -.PP +.P The total amount of memory allocated to the SLAB/SLUB cache is shown in the .I Slab field of .IR /proc/meminfo . .SH SEE ALSO .BR slabtop (1) -.PP +.P The kernel source file .I Documentation/vm/slub.txt and |