wireguard-openbsd/sbin/sysctl/sysctl.c, branch jd/queueboosts

dev/rndvar.h no longer has statistical interfaces (removed during various

2020-05-29T04:42:23Z

conversion steps). it only contains kernel prototypes for 4 interfaces, all of which legitimately belong in sys/systm.h, which are already included by all enqueue_randomness() users.

timeout(9): new flag: TIMEOUT_SCHEDULED, new statistic: tos_scheduled

2019-12-25T00:15:36Z

This flag is set whenever a timeout is put on the wheel and cleared upon (a) running, (b) deletion, and (c) readdition. It serves two purposes: 1. Facilitate distinguishing scheduled and rescheduled timeouts. When a timeout is put on the wheel it is "scheduled" for a later softclock(). If this happens two or more times it is also said to be "rescheduled". The tos_rescheduled value thus indicates how many distant timeouts have been cascaded into a lower wheel level. 2. Eliminate false late timeouts. A timeout is not late if it is due before softclock() has had a chance to schedule it. To track this we need additional state, hence a new flag. rprocter@ raises some interesting questions. Some answers: - This interface is not stable and name changes are possible at a later date. - Although rescheduling timeouts is a side effect of the underlying implementation, I don't forsee us using anything but a timeout wheel in the future. Other data structures are too slow in practice, so I doubt that the concept of a rescheduled timeout will be irrelevant any time soon. - I think the development utility of gathering these sorts of statistics is high. Watching the distribution of timeouts under a given workflow is informative. ok visa@

ks_mapblocks is gone

2019-11-28T16:27:25Z

mobileip is going to the attic

2019-10-29T04:20:36Z

Let sysctl(1) work in single-user mode. Same diff applied by florian@

2019-09-22T01:16:39Z

to ps(1). Noted by kettenis@. florian@'s fix pointed out by maestre@. ok maestre@

sysctl(2): add KERN_TIMEOUT_STATS: timeout(9) status and statistics.

2019-07-12T00:04:59Z

With these totals one can track the throughput of the timeout(9) layer from userspace. With input from mpi@. ok mpi@

wire up net.link.ifrxq.pressure_return and pressure_drop

2019-07-03T10:32:33Z

ok visa@ deraadt@

When system calls indicate an error they return -1, not some arbitrary

2019-06-28T13:32:41Z

value < 0. errno is only updated in this case. Change all (most?) callers of syscalls to follow this better, and let's see if this strictness helps us in the future.

Restrict filesystem access to read only _PATH_DEVDB and /dev through unveil(2),

2019-06-16T09:30:15Z

discussed by many. Additionally call ctime(3) before unveil(2) in order to avoid potential $TZ expansion and therefore avoiding opening more files that would need to be read, idea from deraadt@. While here sort the headers alphabetically. OK florian@ deraadt@

KERN_PFSTATUS is not handled by sysctl so warn about it if requested but

2019-05-13T20:47:19Z

ignore if sysctl -a is used. OK bluhm@