Messages in this thread | | | From | Christian Borntraeger <> | Subject | Re: sched: Move SCHED_DEBUG sysctl to debugfs | Date | Tue, 27 Apr 2021 16:59:25 +0200 |
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Peter,
I just realized that we moved away sysctl tunabled to debugfs in next. We have seen several cases where it was benefitial to set sched_migration_cost_ns to a lower value. For example with KVM I can easily get 50% more transactions with 50000 instead of 500000. Until now it was possible to use tuned or /etc/sysctl.conf to set these things permanently.
Given that some people do not want to have debugfs mounted all the time I would consider this a regression. The sysctl tunable was always available.
I am ok with the "informational" things being in debugfs, but not the tunables. So how do we proceed here?
Christian
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