Re: kern.msgbuf_show_timestamp=1

In reply to: void : "kern.msgbuf_show_timestamp=1"
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From: Warner Losh <imp_at_bsdimp.com>
Date: Fri, 19 Dec 2025 22:45:06 UTC

On Fri, Dec 19, 2025 at 10:22 AM void <void@f-m.fm> wrote:

> Hi,
>
> In /etc/sysctl.conf I have
>
> kern.msgbuf_show_timestamp=1
>
> and so dmsg has things like
>
> [1353919] swp_pager_getswapspace(32): failed
>
> the [1353919] I guess being the timestamp.
>
> But what is it?
>
> Seconds since boot?
>
> If it's that, then where can the true boot time be
> found?
>

Seconds since boot time.

% sysctl kern.boottime
kern.boottime: { sec = 1765407044, usec = 678571 } Wed Dec 10 15:50:44 2025

Warner



> If not, then what does the number signify?
>
>
>
>
>
> --
>
>