From: Tzvetomir Stoyanov <tstoyanov@vmware.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v2 0/6][POC] trace-cmd: Timetamps sync using PTP-like algorithm, relying on vsock events.
Date: Fri, 1 Feb 2019 15:45:29 +0200 [thread overview]
Message-ID: <20190201134535.2979-1-tstoyanov@vmware.com> (raw)
[ V2 changes:
Addressed Steven Rostedt comments.
Modified timestamps sync algorithm to gain more accuracy, with the
help of Yordan Karadzhov and Slavomir Kaslev. ]
This patch series is a POC for timestamps sync between guest and host machines.
It implelents PTP-like algorithm, using vsock events for getting the current time.
The patch series depends on Slavomir's changes, introduced by the patch series
"Add VM kernel tracing over vsock sockets"
Tzvetomir Stoyanov (6):
trace-cmd: Implemented new lib API: tracecmd_local_events_system()
trace-cmd: Added support for negative time offsets in trace.dat file
trace-cmd: Fixed logic in tracecmd_read_page_record()
trace-cmd: Added implementation of htonll() and ntohll()
trace-cmd: Refactored make_instances() and tracecmd_remove_instances()
trace-cmd [POC]: Implemented timestamps synch PTP-like algorithm,
using vsock events.
include/trace-cmd/trace-cmd.h | 8 +-
lib/trace-cmd/trace-input.c | 18 +-
lib/trace-cmd/trace-util.c | 99 ++++++---
tracecmd/include/trace-local.h | 5 +
tracecmd/include/trace-msg.h | 10 +
tracecmd/trace-listen.c | 3 +
tracecmd/trace-msg.c | 307 +++++++++++++++++++++++++-
tracecmd/trace-read.c | 4 +-
tracecmd/trace-record.c | 381 +++++++++++++++++++++++++--------
9 files changed, 690 insertions(+), 145 deletions(-)
--
2.20.1
next reply other threads:[~2019-02-01 13:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-01 13:45 Tzvetomir Stoyanov [this message]
2019-02-01 13:45 ` [PATCH v2 1/6] trace-cmd: Implemented new lib API: tracecmd_local_events_system() Tzvetomir Stoyanov
2019-02-01 13:45 ` [PATCH v2 2/6] trace-cmd: Added support for negative time offsets in trace.dat file Tzvetomir Stoyanov
2019-02-01 13:45 ` [PATCH v2 3/6] trace-cmd: Fixed logic in tracecmd_read_page_record() Tzvetomir Stoyanov
2019-02-01 13:45 ` [PATCH v2 4/6] trace-cmd: Added implementation of htonll() and ntohll() Tzvetomir Stoyanov
2019-02-01 13:45 ` [PATCH v2 5/6] trace-cmd: Refactored make_instances() and tracecmd_remove_instances() Tzvetomir Stoyanov
2019-02-01 13:45 ` [PATCH v2 6/6] trace-cmd [POC]: Implemented timestamps synch PTP-like algorithm, using vsock events Tzvetomir Stoyanov
2019-02-02 8:05 ` Slavomir Kaslev
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=20190201134535.2979-1-tstoyanov@vmware.com \
--to=tstoyanov@vmware.com \
--cc=linux-trace-devel@vger.kernel.org \
--cc=rostedt@goodmis.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).