[DragonFlyBSD - Bug #2868] (New) tmpfs problems: incorrect size, no auto-size

bugtracker-admin at leaf.dragonflybsd.org bugtracker-admin at leaf.dragonflybsd.org
Fri Dec 18 13:16:32 PST 2015

Issue #2868 has been reported by arcade at b1t.name.

Bug #2868: tmpfs problems: incorrect size, no auto-size

* Author: arcade at b1t.name
* Status: New
* Priority: Low
* Assignee: 
* Category: Kernel
* Target version: 
tmpfs version in DragonFly is limited  when comparing to FreeBSD:

1. When tmpfs is mounted automatically it's size by default (per man page) should be equal to all free mem + all free swap. Instead tmpfs filesystems are created with a fairly small size - like 200k on host with 1G mem.
2. tmpfs size should be auto adjusted when other processes are eating mem or when swap is added. Instead as swap is initialized after mounting /tmp swap addition doesn't make tmpfs grow. On the other hand I never saw tmpfs shrinking when all available memory is used.

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