9907cc1cc8
ARC will evict meta buffers that exceed the arc_meta_limit. Before a further investigating on whether we should take special protection on meta buffers, this tunable make arc_meta_limit adjustable for different workloads. People can set zfs_arc_meta_limit_percent to any value while insmod zfs.ko, so some range check is added to guarantee a suitable arc_meta_limit. Suggested by Tim Chase, zfs_arc_dnode_limit is changed to a percent-style tunable as well. Signed-off-by: GeLiXin <ge.lixin@zte.com.cn> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4957 |
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