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show task memory

Syntax

show task memory
<brief | detail | history | summary>
<logical-system (all | logical-system-name)>

Release Information

Command introduced before JUNOS Release 7.4.

Description

Display memory utilization for routing protocol tasks on the Routing Engine.

Options

none — Display standard information about memory utilization for routing protocol tasks on the Routing Engine on all logical systems.

brief | detail | history | summary — (Optional) Display the specified level of output. Use the history option to display a history of memory utilization information.

logical-system (all | logical-system-name) — (Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level

view

List of Sample Output

show task memory
show task memory detail

Output Fields

Table 142 describes the output fields for the command. Output fields are listed in the approximate order in which they appear.

Table 142: show task memory Output Fields

Field Name

Field Description

Level of Output

Memory Currently In Use

Memory currently in use.

none specified

Memory Maximum Ever Used

Maximum memory ever used.

none specified

Memory Available

Memory currently available.

none specified

Size (kB)

Memory capacity in 1000-byte kilobytes.

none specified

%Available

Percentage of memory currently available.

none specified

When

Timestamp.

none specified

Overall Memory Report

Memory utilization by memory size:

  • Size—Block size, in bytes.
  • TPT—indicates transient memory, and P indicates full page.
  • Allocs—Number of blocks allocated for named objects.
  • Mallocs—Number of blocks allocated for anonymous objects.
  • Alloc Bytes—Number of blocks allocated times block size.
  • MaxAllocs—Maximum value ofAllocs.
  • MaxBytes—Maximum value of Alloc Bytes.
  • FreeBytes—Total number of bytes unused on memory pages for this block size.

detail

Allocator Memory Report

Memory utilization by named objects:

  • Size—Size of the named object in bytes.
  • Alloc Size—Actual memory used by that object in bytes.
  • DTP—indicates debug,D T indicates transient, and P indicates full page.
  • Alloc Blocks—Number of named objects allocated.
  • AllocBytes—Number of blocks allocated times block size.
  • MaxAlloc Blocks—Maximum value of Alloc Blocks.
  • Max Alloc Bytes—Maximum value of AllocBytes.

detail

Malloc Usage Report

Memory utilization for miscellaneous use:

  • Allocs—Number of allocations.
  • Bytes—Total bytes consumed.
  • MaxAllocs—Maximum value of Allocs.
  • MaxBytes—Maximum value of Bytes.
  • FuncCalls—Cumulative number of Allocs.

detail

Dynamically allocated memory

Memory allocated dynamically by the system.

detail

Program data+BSS memory

Program and base station subsystem (BSS) memory.

detail

Page data overhead

Internal memory overhead.

detail

Page directory size

Internal memory overhead.

detail

Total bytes in use

Total memory, in bytes, that is currently in use and percentage of available memory (in parentheses).

detail

Sample Output

show task memory

user@host> show task memory 
Memory                 Size (kB)  %Available  When
  Currently In Use:        29417          3%  now
  Maximum Ever Used:       33882          4%  00/02/11 22:07:03
  Available:              756281        100%  now

show task memory detail

user@host> show task memory detail 
------------------------- Overall Memory Report -------------------------
  Size TP    Allocs   Mallocs  AllocBytes  MaxAllocs    MaxBytes  FreeBytes
     8            -       111         888        112         896       3208
    12           92       149        2892        247        2964       1204
    12 T          -         -           -          5          60          -
    16            7        11         288         23         368       3808
    20          100        33        2660        164        3280       1436
    20 T          -         -           -         40         800          -
    24          162        15        4248        177        4248       3944
    24 T          -         -           -          4          96          -
    28          371         -       10388        372       10416       1900
    32            6        23         928         30         960       3168
...
-------------------------------------------------------------------------
                                   606182                 715302     118810

  ------------------------ Allocator Memory Report ------------------------
  Name                 Size Alloc DTP    Alloc     Alloc MaxAlloc  MaxAlloc
                             Size       Blocks     Bytes   Blocks     Bytes
  patroot                 8    12           84      1008       87      1044
  sockaddr_un.i802        8    12            2        24        2        24
  cos_nhm_nh              8    12            1        12        1        12
  sockaddr_un.tag         8    12            3        36        4        48
  gw_entry_list           8    12            1        12        1        12
  bgp_riblist_01          8    12            1        12        2        24
  ospf_intf_ev            8    12            -         -        6        72
  krt_remnant_rt          8    12  T         -         -        5        60
...
  -------------------------------------------------------------------------
                                                  164108             221552

  -------------------------- Malloc Usage Report --------------------------
  Name                      Allocs     Bytes MaxAllocs  MaxBytes  FuncCalls
  MGMT.local                     1         8         1         8          1
  BGP.0.0.0.0+179                -         -         1         8          2
  BGP RT Background              4     74748         4     74748          4
  SNMP Subagent./var/run/        -        52         1      9172         56
  OSPFv2 I/O./var/run/ppm        1     66536         2     66552       4551
  OSPF                           6     67655         7     67703         68
  KRT                            -         -         1      3784         18
  ASPaths                        3        80         3        80          3
  -- sockaddr --               183      2100       184      2108       1645
  BFD I/O./var/run/bfdd_c        1     65535         2     65551       4555
  RT                            48       872        48       872         48
  Scheduler                     42       628        43       628         88
  --Anonymous--                 56      1100        58      1140        112
  --System--                    82     58364       114     60044       4654
  -------------------------------------------------------------------------
                                      337678              352398

    Dynamically allocated memory:     765952      Maximum:    765952
         Program data+BSS memory:    1568768      Maximum:   1568768
              Page data overhead:      53248      Maximum:     53248
             Page directory size:       4096      Maximum:      4096 
                                  ----------
              Total bytes in use:    2392064 (0% of available memory)
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