Limits. Conf File Changing Max Memory Option

This question might have been asked earlier however i did not find any supported answer. I understand that ulimit supports few options from which max memory size is one of them. How can i set the same options using /etc/security/limits.conf file?

I think setting up virtual memory option in limits.conf file isn't the same thing as max memory size.

Additionally, I know I can edit the user's .bashrc file to limit resources using ulimit, for example ulimit -m <mem in Kb> but that is where user can change these values at any time.

Which one of these in limits.conf is equivalent to ulimit -m

#        - core - limits the core file size (KB)
#        - data - max data size (KB)
#        - fsize - maximum filesize (KB)
#        - memlock - max locked-in-memory address space (KB)
#        - nofile - max number of open files
#        - rss - max resident set size (KB)
#        - stack - max stack size (KB)
#        - cpu - max CPU time (MIN)
#        - nproc - max number of processes
#        - as - address space limit
#        - maxlogins - max number of logins for this user
#        - maxsyslogins - max number of logins on the system
#        - priority - the priority to run user process with
#        - locks - max number of file locks the user can hold
#        - sigpending - max number of pending signals
#        - msgqueue - max memory used by POSIX message queues (bytes)
#        - nice - max nice priority allowed to raise to
#        - rtprio - max realtime priority

1 Answer

I'm going to assume that you're talking about bash's ulimit. From the manual:

-m
The maximum resident set size (many systems do not honor this limit).

Of the entries in your question, rss is also max resident set size.

3

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Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.

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