On Fri, Jun 08, 2018 at 03:07:07PM +1000, Kubilay Kocak wrote: K> > UMA memory debugging enabled with INVARIANTS consists of two things: K> > trashing freed memory and checking that allocated memory is properly K> > trashed, and also of keeping a bitset of freed items. Trashing/checking K> > creates a lot of CPU cache poisoning, while keeping debugging bitsets K> > consistent creates a lot of contention on UMA zone lock(s). The performance K> > difference between INVARIANTS kernel and normal one is mostly attributed K> > to UMA debugging, rather than to all KASSERT checks in the kernel. K> > K> > Add loader tunable vm.debug.divisor that allows either to turn off UMA K> K> Is 'sample interval' a standard/common enough term for this kind of K> mechanism to name the sysctl with it rather than the implementation? K> K> Or 'sample frequency'
Interval definitely doesn't fit here. Frequency is closer, but still not the right term, IMHO. Native speaker required here to judge. I am okay if anyone who is confident changes wording here. -- Gleb Smirnoff _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
