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Diffstat (limited to 'Doc/help/limit')
| -rw-r--r-- | Doc/help/limit | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/Doc/help/limit b/Doc/help/limit new file mode 100644 index 000000000..1e31b122d --- /dev/null +++ b/Doc/help/limit @@ -0,0 +1,91 @@ +limit [ -hs ] [ resource [ limit ] ] ... + Set or display resource limits. Unless the -s flag is given, + the limit applies only the children of the shell. If -s is + given without other arguments, the resource limits of the cur- + rent shell is set to the previously set resource limits of the + children. + + If limit is not specified, print the current limit placed on re- + source, otherwise set the limit to the specified value. If the + -h flag is given, use hard limits instead of soft limits. If no + resource is given, print all limits. + + When looping over multiple resources, the shell will abort imme- + diately if it detects a badly formed argument. However, if it + fails to set a limit for some other reason it will continue try- + ing to set the remaining limits. + + resource can be one of: + + addressspace + Maximum amount of address space used. + aiomemorylocked + Maximum amount of memory locked in RAM for AIO opera- + tions. + aiooperations + Maximum number of AIO operations. + cachedthreads + Maximum number of cached threads. + coredumpsize + Maximum size of a core dump. + cputime + Maximum CPU seconds per process. + datasize + Maximum data size (including stack) for each process. + descriptors + Maximum value for a file descriptor. + filesize + Largest single file allowed. + kqueues + Maximum number of kqueues allocated. + maxproc + Maximum number of processes. + maxpthreads + Maximum number of threads per process. + memorylocked + Maximum amount of memory locked in RAM. + memoryuse + Maximum resident set size. + msgqueue + Maximum number of bytes in POSIX message queues. + posixlocks + Maximum number of POSIX locks per user. + pseudoterminals + Maximum number of pseudo-terminals. + resident + Maximum resident set size. + sigpending + Maximum number of pending signals. + sockbufsize + Maximum size of all socket buffers. + stacksize + Maximum stack size for each process. + swapsize + Maximum amount of swap used. + vmemorysize + Maximum amount of virtual memory. + + Which of these resource limits are available depends on the sys- + tem. resource can be abbreviated to any unambiguous prefix. It + can also be an integer, which corresponds to the integer defined + for the resource by the operating system. + + If argument corresponds to a number which is out of the range of + the resources configured into the shell, the shell will try to + read or write the limit anyway, and will report an error if this + fails. As the shell does not store such resources internally, + an attempt to set the limit will fail unless the -s option is + present. + + limit is a number, with an optional scaling factor, as follows: + + nh hours + nk kilobytes (default) + nm megabytes or minutes + ng gigabytes + [mm:]ss + minutes and seconds + + The limit command is not made available by default when the + shell starts in a mode emulating another shell. It can be made + available with the command `zmodload -F zsh/rlimits b:limit'. |