From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: Linus Torvalds <torvalds@linux-foundation.org>,
akpm@linux-foundation.org, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org
Subject: [patch 00/17] Trace Clock v3
Date: Wed, 12 Nov 2008 18:15:51 -0500 [thread overview]
Message-ID: <20081112231551.473569400@polymtl.ca> (raw)
Hi,
In this new version, I have integrated the changes I did following the comments
I received for v2. I also reimplemented the "generic" trace clock so it is less
intrusive and simply use a standard timer. I is not as bound to the xtime_lock
as it previously was and it does not have to modify kernel/time.c anymore.
I think this is pretty close to a mergeable state. I plan to keep more exotic
features, such as dealing with non-synchronized TSCs without cache-line
bouncing, for future improvement. As a reminder, when the trace clock detects an
unsynchronized TSC on the machine, it prints the information about which kernel
command line arguments must be used so the user can have synchronized timestamp
counters. However, if the user wants to use his system with non-synchronized
TSCs, the cache-line bouncing fallback is used.
This patchset applies on top of 2.6.28-rc4.
Mathieu
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next reply other threads:[~2008-11-12 23:33 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-12 23:15 Mathieu Desnoyers [this message]
2008-11-12 23:15 ` [patch 01/17] get_cycles() : kconfig HAVE_GET_CYCLES Mathieu Desnoyers
2008-11-12 23:15 ` [patch 02/17] get_cycles() : x86 HAVE_GET_CYCLES Mathieu Desnoyers
2008-11-13 7:15 ` Geert Uytterhoeven
2008-11-13 13:34 ` Mathieu Desnoyers
2008-11-12 23:15 ` [patch 03/17] get_cycles() : sparc64 HAVE_GET_CYCLES Mathieu Desnoyers
2008-11-12 23:15 ` [patch 04/17] get_cycles() : powerpc64 HAVE_GET_CYCLES Mathieu Desnoyers
2008-11-12 23:15 ` [patch 05/17] get_cycles() : MIPS HAVE_GET_CYCLES_32 Mathieu Desnoyers
2008-11-12 23:15 ` [patch 06/17] Trace clock core Mathieu Desnoyers
2008-11-12 23:15 ` [patch 07/17] Trace clock generic Mathieu Desnoyers
2008-11-12 23:15 ` [patch 08/17] Powerpc : Trace clock Mathieu Desnoyers
2008-11-12 23:16 ` [patch 09/17] Sparc64 " Mathieu Desnoyers
2008-11-12 23:16 ` [patch 10/17] LTTng timestamp sh Mathieu Desnoyers
2008-11-12 23:16 ` [patch 11/17] LTTng - TSC synchronicity test Mathieu Desnoyers
2008-11-12 23:16 ` [patch 12/17] x86 : remove arch-specific tsc_sync.c Mathieu Desnoyers
2008-11-12 23:16 ` [patch 13/17] MIPS use tsc_sync.c Mathieu Desnoyers
2008-11-12 23:16 ` [patch 14/17] MIPS : export hpt frequency for trace_clock Mathieu Desnoyers
2008-11-12 23:16 ` [patch 15/17] MIPS create empty sync_core() Mathieu Desnoyers
2008-11-12 23:16 ` [patch 16/17] MIPS : Trace clock Mathieu Desnoyers
2008-11-12 23:16 ` [patch 17/17] x86 trace clock Mathieu Desnoyers
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