From: "Mike Arthur" <arth2219@gmail.com>
To: "C B" <csb_80@hotmail.com>
Cc: "Gary Thomas" <gary@mlbassoc.com>, ecos-discuss@ecos.sourceware.org
Subject: Re: [ECOS] Performance timing
Date: Sat, 17 Nov 2007 07:07:00 -0000 [thread overview]
Message-ID: <2a3305fe0711161155o72cbb9dfj4a26175dcedf8287@mail.gmail.com> (raw)
In-Reply-To: <BAY105-W29FAC8580F59FA1652DCF3EA830@phx.gbl>
On Nov 16, 2007 1:47 PM, C B <csb_80@hotmail.com> wrote:
>
> System profiling is probably what I need.
>
> Unfortunately there isn't an implementation of the profiling timer for my target. Any information or guidance available that you're aware of for implementing this?
The eCos Reference Manual has this functionality documented:
http://ecos.sourceware.org/docs-latest/ref/gprof.html
It's pretty straight forward to implement with in your HAL. You'll
need a spare hardware timer to use for your instrumentation. Try
looking in other HALs that use the profile timer as an example.
You need to setup two functions to implement the profile instrumentation:
1.) int hal_enable_profile_timer(int resolution)
* Initializes hardware timer and ISR.
2.) unsigned int profile_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data,
HAL_SavedRegisters *regs)
* Saves current program counter
* Handles timer hardware
Good luck!
Mike
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Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
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next prev parent reply other threads:[~2007-11-16 19:55 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-02 18:54 [ECOS] networking support for my eCos application C B
2007-11-02 19:08 ` Gary Thomas
2007-11-05 16:12 ` C B
2007-11-05 18:43 ` Andrew Lunn
[not found] ` <BAY105-W2585C1EB05E16C54EA73C5EA890@phx.gbl>
2007-11-06 8:34 ` Andrew Lunn
2007-11-08 20:01 ` C B
2007-11-08 21:05 ` Andrew Lunn
2007-11-09 9:22 ` [ECOS] " John Dallaway
2007-11-09 13:32 ` [ECOS] " C B
2007-11-09 18:48 ` C B
2007-11-09 18:55 ` Andrew Lunn
2007-11-12 11:52 ` C B
2007-11-12 12:27 ` Gary Thomas
2007-11-12 18:11 ` C B
2007-11-14 13:30 ` [ECOS] Adding xscale support to my eCos config C B
2007-11-14 14:05 ` Andrew Lunn
2007-11-14 14:13 ` Mark Salter
2007-11-14 15:23 ` C B
2007-11-14 15:24 ` Gary Thomas
2007-11-14 20:11 ` C B
2007-11-14 20:42 ` C B
2007-11-16 18:15 ` [ECOS] Performance timing C B
2007-11-16 19:47 ` Gary Thomas
2007-11-16 19:55 ` C B
2007-11-17 7:07 ` Mike Arthur [this message]
2007-11-19 5:19 ` C B
2007-11-19 14:36 ` Gary Thomas
2007-11-22 13:39 ` [ECOS] eCos compatible with arm-elf-gcc version 4.1.1? C B
2007-11-22 14:28 ` Lars Poeschel
2007-11-22 16:42 ` C B
2007-11-27 14:38 ` C B
2007-11-28 13:24 ` C B
[not found] ` <BAY105-W28BEA5A1C91693C8BE5C8FEA870@phx.gbl>
2007-11-12 12:07 ` [ECOS] RE: networking support for my eCos application Andrew Lunn
2007-11-12 18:05 ` C B
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