From: "Gaul, Maximilian" <maximilian.gaul@hm.edu>
To: "bpf@vger.kernel.org" <bpf@vger.kernel.org>
Subject: Compare *bpf_ktime_get_ns* in userspace
Date: Wed, 1 Apr 2020 14:18:04 +0000 [thread overview]
Message-ID: <847e02c956f249aa8daab85c538e75fe@hm.edu> (raw)
I was just wondering whether there is a way to make the timestamp received in XDP/BPF via *bpf_ktime_get_ns* comparable with the usual functions in user-space such as *clock_gettime(CLOCK_MONOTONIC, &t);*?
Unfortunately, *ktime_get_ns* is defined as the time since system boot, but as far as I know, there is no way in user-space to determine the time since system boot any finer than in seconds.
reply other threads:[~2020-04-01 14:18 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=847e02c956f249aa8daab85c538e75fe@hm.edu \
--to=maximilian.gaul@hm.edu \
--cc=bpf@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).