---
name: "softlimit"
section: "8"
platform: "linux"
package: "daemontools"
version: "1:0.76-14"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/softlimit"
---

# softlimit(8)

runs another program with new resource limits.

## NAME

softlimit - runs another program with new resource limits.

## SYNOPSIS

**softlimit** \[ *opts* \] *child*

## DESCRIPTION

*opts* is a series of getopt-style options. *child* consists of one or more arguments.

**softlimit** sets soft resource limits as specified by *opts*. It then runs *child*.

## OPTIONS

In each of the following *opts***,** *n* may be =, indicating that the soft limit should be set equal to the hard limit.

*opts* **controlling memory use:**

- **-m *n***

  Same as **-d** *n* **-s** *n* **-l** *n* **-a** *n*.

- **-d *n***

  Limit the data segment per process to *n* bytes.

- **-s *n***

  Limit the stack segment per process to *n* bytes.

- **-l *n***

  Limit the locked physical pages per process to *n* bytes. This option has no effect on some operating systems.

- **-a *n***

  Limit the total of all segments per process to *n* bytes. This option has no effect on some operating systems.

- **-o *n***

  Limit the number of open file descriptors per process to *n*. This option has no effect on some operating systems.

- **-p *n***

  Limit the number of processes per uid to *n*.

*opts* **controlling file sizes:**

- **-f *n***

  Limit output file sizes to *n* bytes.

- **-c *n***

  Limit core file sizes to *n* bytes.

**Efficiency** *opts:*

- **-r *n***

  Limit the resident set size to *n* bytes. This limit is not enforced unless physical memory is full.

- **-t *n***

  Limit the CPU time to *n* seconds. This limit is not enforced except that the process receives a SIGXCPU signal after *n* seconds.

## SEE ALSO

[supervise(8)](/supervise/8.md), [svc(8)](/svc/8.md), [svok(8)](/svok/8.md), [svstat(8)](/svstat/8.md), [svscanboot(8)](/svscanboot/8.md), [svscan(8)](/svscan/8.md), [readproctitle(8)](/readproctitle/8.md), [fghack(8)](/fghack/8.md),   [pgrphack(8)](/pgrphack/8.md), [multilog(8)](/multilog/8.md), [tai64n(8)](/tai64n/8.md), [tai64nlocal(8)](/tai64nlocal/8.md), [setuidgid(8)](/setuidgid/8.md), [envuidgid(8)](/envuidgid/8.md), [envdir(8)](/envdir/8.md), [setlock(8)](/setlock/8.md)

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