Difference between revisions of "UBC parameters table"
(created (separated from UBC parameters)) |
Nathanhaigh (talk | contribs) (Updated some descriptions to come in line with what's show on UBC_primary_parameters, UBC_secondary_parameters etc) |
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+ | {{UBC toc}} | ||
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{| class="wikitable" | {| class="wikitable" | ||
! Name !! Description | ! Name !! Description | ||
|- | |- | ||
− | | colspan="2" align="center" | Primary parameters | + | | colspan="2" align="center" | [[UBC primary parameters|Primary parameters]] |
|- | |- | ||
− | | numproc || | + | | [[numproc]] || Maximum number of processes and kernel-level threads allowed for this container. |
|- | |- | ||
− | | numtcpsock || | + | | [[numtcpsock]] || Maximum number of TCP sockets. |
|- | |- | ||
− | | numothersock || | + | | [[numothersock]] || Maximum number of non-TCP sockets (local sockets, UDP and other types of sockets). |
|- | |- | ||
− | | vmguarpages || Memory allocation guarantee | + | | [[vmguarpages]] || Memory allocation guarantee. |
|- | |- | ||
− | | colspan="2" align="center" | Secondary parameters | + | | colspan="2" align="center" | [[UBC secondary parameters|Secondary parameters]] |
|- | |- | ||
− | | kmemsize || Size of unswappable kernel memory, allocated for processes in this [[ | + | | [[kmemsize]] || Size of unswappable kernel memory, allocated allocated for processes in this [[container]]. |
|- | |- | ||
− | | tcpsndbuf || Total size of TCP | + | | [[tcpsndbuf]] || Total size of buffers used to send data over TCP network connections. |
|- | |- | ||
− | | tcprcvbuf || Total size of TCP | + | | [[tcprcvbuf]] || Total size of buffers used to temporary store the data coming from TCP network connections. |
|- | |- | ||
− | | othersockbuf || Total size of UNIX-domain socket buffers, UDP and other datagram protocol send buffers. | + | | [[othersockbuf]] || Total size of UNIX-domain socket buffers, UDP and other datagram protocol send buffers. |
|- | |- | ||
− | | dgramrcvbuf || Receive buffers of UDP and other datagram protocols. | + | | [[dgramrcvbuf]] || Receive buffers of UDP and other datagram protocols. |
|- | |- | ||
− | | oomguarpages || The guaranteed amount of memory for the case the memory is “over-booked” (out-of-memory kill guarantee) | + | | [[oomguarpages]] || The guaranteed amount of memory for the case the memory is “over-booked” (out-of-memory kill guarantee). |
|- | |- | ||
− | | privvmpages || Memory allocation limit, in pages. | + | | [[privvmpages]] || Memory allocation limit, in pages. |
|- | |- | ||
− | | colspan="2" align="center" | Auxiliary parameters | + | | colspan="2" align="center" | [[UBC auxiliary parameters|Auxiliary parameters]] |
|- | |- | ||
− | | lockedpages || Process pages not allowed to be swapped out (pages locked by <code>mlock(2)</code>). | + | | [[lockedpages]] || Process pages not allowed to be swapped out (pages locked by <code>mlock(2)</code>). |
|- | |- | ||
− | | shmpages || Total size of shared memory (IPC, shared anonymous mappings and <code>tmpfs</code> objects), in pages. | + | | [[shmpages]] || Total size of shared memory (IPC, shared anonymous mappings and <code>tmpfs</code> objects), in pages. |
|- | |- | ||
− | | physpages || Total number of RAM pages used by processes. | + | | [[physpages]] || Total number of RAM pages used by processes. |
|- | |- | ||
− | | numfile || Number of open files. | + | | [[numfile]] || Number of open files. |
|- | |- | ||
− | | numflock || Number of file locks. | + | | [[numflock]] || Number of file locks. |
|- | |- | ||
− | | numpty || Number of pseudo-terminals. | + | | [[numpty]] || Number of pseudo-terminals. |
|- | |- | ||
− | | numsiginfo || Number of <code>siginfo</code> structures. | + | | [[numsiginfo]] || Number of <code>siginfo</code> structures. |
|- | |- | ||
− | | dcachesize || Total size of <code>dentry</code> and <code>inode</code> structures locked in memory. | + | | [[dcachesize]] || Total size of <code>dentry</code> and <code>inode</code> structures locked in memory. |
|- | |- | ||
− | | numiptent || Number of NETFILTER (IP packet filtering) entries. | + | | [[numiptent]] || Number of NETFILTER (IP packet filtering) entries. |
+ | |- | ||
+ | | [[swappages]] || Amount of swap space to show in container. | ||
|} | |} |
Latest revision as of 23:11, 1 August 2011
|
Name | Description |
---|---|
Primary parameters | |
numproc | Maximum number of processes and kernel-level threads allowed for this container. |
numtcpsock | Maximum number of TCP sockets. |
numothersock | Maximum number of non-TCP sockets (local sockets, UDP and other types of sockets). |
vmguarpages | Memory allocation guarantee. |
Secondary parameters | |
kmemsize | Size of unswappable kernel memory, allocated allocated for processes in this container. |
tcpsndbuf | Total size of buffers used to send data over TCP network connections. |
tcprcvbuf | Total size of buffers used to temporary store the data coming from TCP network connections. |
othersockbuf | Total size of UNIX-domain socket buffers, UDP and other datagram protocol send buffers. |
dgramrcvbuf | Receive buffers of UDP and other datagram protocols. |
oomguarpages | The guaranteed amount of memory for the case the memory is “over-booked” (out-of-memory kill guarantee). |
privvmpages | Memory allocation limit, in pages. |
Auxiliary parameters | |
lockedpages | Process pages not allowed to be swapped out (pages locked by mlock(2) ).
|
shmpages | Total size of shared memory (IPC, shared anonymous mappings and tmpfs objects), in pages.
|
physpages | Total number of RAM pages used by processes. |
numfile | Number of open files. |
numflock | Number of file locks. |
numpty | Number of pseudo-terminals. |
numsiginfo | Number of siginfo structures.
|
dcachesize | Total size of dentry and inode structures locked in memory.
|
numiptent | Number of NETFILTER (IP packet filtering) entries. |
swappages | Amount of swap space to show in container. |