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added monitoring info to zfs_scan_mem_lim_fact

Richard Elling 2019-04-23 15:40:38 -07:00
parent 1972247e9d
commit 834a6d410c
1 changed files with 5 additions and 1 deletions
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6
ZFS-on-Linux-Module-Parameters.md

@ -2939,7 +2939,11 @@ by sequential scan algorithm.
When the limit is reached scanning metadata is stopped and
data verification I/O is started.
Data verification I/O continues until the memory used by the sorting
algorith drops below below [zfs_scan_mem_lim_soft_fact](#zfs_scan_mem_lim_soft_fact)
algorithm drops below below [zfs_scan_mem_lim_soft_fact](#zfs_scan_mem_lim_soft_fact)
Memory used by the sequential scan algorithm can be observed as the kmem sio_cache.
This is visible from procfs as `grep sio_cache /proc/slabinfo` and can be monitored
using slab-monitoring tools such as `slabtop`
| zfs_scan_mem_lim_fact | Notes
|---|---