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Tsim with eCos
- From: "Michele Portolan" <michele dot Portolan at imag dot fr>
- To: <leon_sparc at yahoogroups dot com>, <ecos-discuss at sources dot redhat dot com>
- Date: Mon, 25 Aug 2003 14:54:08 +0200
- Subject: [ECOS] Tsim with eCos
I'm using TSIM (evaluation) to test eCos2.0 on leon.
I'm running the "tm_basic" test to obtain basic timing information with
different system clocks, but there is a thing I cannot understand: I always
get the same result. How is it possible?
Even a "diff" operation on the two complete outputs gives nothing: they are
strictly the same!
For example I am monitoring context switch time, and i get the following
line at both 50 and 16 Mhz:
Confidence
Ave Min Max Var Ave Min Function
====== ====== ====== ====== ========== ========
....
14.44 14.00 18.00 0.51 58% 58% Thread switch
Above it is stated that "all times are in microseconds (.000001) unless
otherwise stated"
I'm sure TSIM is correctly set because if I enter "perf" I get "CPU
performance (16.0 MHz)" in one case and "CPU performance (50.0 MHz)" in the
other.
By the way, what does the parameter "confidence" means?
Thanks,
Michele Portolan
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