linux-kernel - [PATCH RT 0/3] hwlat-detector: Have it actually find hardware latency

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20130819213324.405942342@goodmis.org>
Date:	Mon, 19 Aug 2013 17:33:24 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	linux-kernel@...r.kernel.org,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Carsten Emde <C.Emde@...dl.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	John Kacur <jkacur@...hat.com>,
	Clark Williams <clark.williams@...il.com>
Subject: [PATCH RT 0/3] hwlat-detector: Have it actually find hardware latency

Thi patch series fixes up hwlat-detector to check the entire path
of time for a latency being hit, instead of the quick check between
two time stamps.

It also uses the trace_local_clock() if available, which is much lighter
weight than ktime_get() which might produce false positives. As
the trace clock is used to detect irq latencies, it's suitable for
hardware latency.

Finally, stop machine is removed and the test is run by a single thread.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/