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Bug #175

zfs vdev cache consumes excessive memory

Added by Gordon Ross over 10 years ago. Updated about 9 years ago.

Status:
Resolved
Priority:
Normal
Category:
kernel
Start date:
2010-09-08
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

See OpenSolaris CR 6684116

but note that the work-around suggested there is less than ideal.
Better to set zfs_vdev_cache_size to zero, i.e. in /etc/system
set zfs:zfs_vdev_cache_size = 0

After some performance verification, it might make sense to
change the default to zero in uts/common/fs/zfs/vdev_cache.c

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