From: Max Vasin <max.vasin@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-help] Vortex86SX and TSC
Date: Fri, 22 Jan 2010 10:38:08 +0300 [thread overview]
Message-ID: <hjbkl0$5lb$1@domain.hid> (raw)
Hello,
I'm trying to port my application from the DiamonSystems Hercules II SBC
(with VIA C3 CPU) to the DiamonSystems Helios SBC (with Vortex86SX CPU).
The application contains one RT task running at 50 kHz and three RT
tasks running at 2kHz. One iteration of the first task takes 15 us to
complete. Measured latencies on the Vortex86 CPU are about 40us with max
56us, on the VIA C3 CPU are about 7us. Vortex86SX is 486 compatible, so
Xenomai is built without TSC support, but CPUID claims the the it
supports TSC. Is there a way to get kernel part of Xenomai to use TSC?
Thanks in adavance.
--
WBR,
Max Vasin.
next reply other threads:[~2010-01-22 7:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-22 7:38 Max Vasin [this message]
2010-01-22 8:40 ` [Xenomai-help] Vortex86SX and TSC Gilles Chanteperdrix
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