Hi,
05.04.2018 20:15, Eugene M. Zheganin wrote:
You can indeed tune things here are the relevant sysctls:
sysctl -a | grep trim |grep -v kstat
vfs.zfs.trim.max_interval: 1
vfs.zfs.trim.timeout: 30
vfs.zfs.trim.txg_delay: 32
vfs.zfs.trim.enabled: 1
vfs.zfs.vdev.trim_max_pending: 10000
vfs.zfs.vdev.trim_max_active: 64
vfs.zfs.vdev.trim_min_active: 1
vfs.zfs.vdev.trim_on_init: 1
Well, I've already seen these. How do I tune them ? The idea of just
tampering with them and seeing what will happen doesn't look like a
bright one to me. Do I increase or decrease them ? Which ones do I
have to avoid ?
So, about these - are there any best practices to fine-tune them ? How
do you tune them (I won't blame anyone for examples) ? Or are they
"just there" and nobody touches them ?
Thanks.
Eugene.
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