[Bug 295043] pf: per-packet microuptime() calls from 0493260115db cause major throughput regression with expensive timecounters

[email protected] Thu, 21 May 2026 21:20:10 +0000

Newsgroups	gmane.os.freebsd.devel.pf4freebsd
Message-ID	<[email protected]/bugzilla/>

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D295043

--- Comment #1 from [email protected] ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=3De4130ac13d2fe9c17b8f8e86d39a7b522=
3fe7b79

commit e4130ac13d2fe9c17b8f8e86d39a7b5223fe7b79
Author:     Kristof Provost <[email protected]>
AuthorDate: 2026-05-21 11:31:11 +0000
Commit:     Kristof Provost <[email protected]>
CommitDate: 2026-05-21 21:19:50 +0000

    pf: switch to getmicro(up)time()

    It is reported that micro(up)time() performs poorly in certain
    virtualisation scenarios. Absolute accuracy isn't required here, so
    switch to the slightly less accurate (as per the man page) get-variants.

    PR:             295043
    MFC after:      3 weeks
    Sponsored by:   Rubicon Communications, LLC ("Netgate")

 sys/net/pfvar.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--=20
You are receiving this mail because:
You are the assignee for the bug.=