expensive sysctls if you request them by name, but not if you request the 'kstat.zfs' tree.
I have looked at /sys/contrib/openzfs/module/zfs/dbuf.c where I had assumed that the "kstat.zfs.misc.dbufs" sysctl node was created, but did not spot the location on a quick search. The kstat nodes are created by kstat_install() and AFAICT, there is no parameter that directly allows to create the sysctl node with CTLFLAG_SKIP, currently. This long delay affects sysctl -a and I'd really hope that it can be fixed in a way that suppresses this large debug output unless it is specifically requested by passing the full node name ... Regards, STefan
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