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linux:fs:zfs:tuning [2026/03/20 07:35] – niziaklinux:fs:zfs:tuning [2026/03/20 07:51] (current) – niziak
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 <code bash> <code bash>
-# zarcsummary+# zarcsummary -s arc
  
 ARC size (current):                                    98.9 %   15.5 GiB ARC size (current):                                    98.9 %   15.5 GiB
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   * ''zfs_arc_max'': Maximum size of ARC in bytes. If set to 0 then the maximum size of ARC is determined by the amount of system memory installed (50% on Linux)   * ''zfs_arc_max'': Maximum size of ARC in bytes. If set to 0 then the maximum size of ARC is determined by the amount of system memory installed (50% on Linux)
   * ''zfs_arc_min'': Minimum ARC size limit. When the ARC is asked to shrink, it will stop shrinking at ''c_min''  as tuned by ''zfs_arc_min''.   * ''zfs_arc_min'': Minimum ARC size limit. When the ARC is asked to shrink, it will stop shrinking at ''c_min''  as tuned by ''zfs_arc_min''.
-  * ''zfs_arc_meta_limit_percent'': Sets the limit to ARC metadata, arc_meta_limit, as a percentage of the maximum size target of the ARC, ''c_max''. Default is 75.+  * ''zfs_arc_meta_balance'': Balance between metadata and data on ghost hits. Values above 100 increase metadata caching by proportionally reducing effect of ghost data hits on target data/metadata rate. [[https://openzfs.github.io/openzfs-docs/man/master/4/zfs.4.html#zfs_arc_meta_balance]] 
 Proxmox recommends following [[https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_limit_memory_usage|rule]]: Proxmox recommends following [[https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_limit_memory_usage|rule]]:
 <code> <code>