[ts-general] ts-general Digest, Vol 16, Issue 1

John Cawley uidentzero at gmail.com
Fri Apr 5 14:01:55 EDT 2013


David,

Thank you for posting the solution.  Really.

The utilities for setting cpu speed are good short-term fix; I would think,
though, long-term the shim code itself should handle that.
>From a programming perspective, variable cpus and timestamps are probably
an itch that's been felt 20 times; somebody probably has a library or code
that scratches it.

The next thought was how to best share contributions like that.  Not long
ago Russ floated an idea about creating an 'open github' for the shim, and
I offered to sponsor a server for it.  Seems like an open code repository
for the trading-shim might be a good idea.

What do you think?

It's at the concept level right now.  I have a newly installed system, but
that's about it.  The aim is to facilitate development in the shim.

Thoughts or suggestions?

John


On Fri, Apr 5, 2013 at 12:00 PM,
<ts-general-request at mail.trading-shim.org>wrote:

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> Today's Topics:
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>    1. Re: Sigh.. ShimText time stamp wrong on different hardware
>       and more (David)
>    2. Sigh.. ShimText time stamp wrong on different hardware    and
>       more (R P Herrold)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 04 Apr 2013 18:59:46 -0400
> From: David <tshim at allone.org>
> Subject: Re: [ts-general] Sigh.. ShimText time stamp wrong on
>         different hardware and more
> To: trading shim general list <ts-general at mail.trading-shim.org>
> Message-ID: <20130404225956.B8E5885C804 at allone.org>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Solved.
>
> If you have a CPU that can very it's clock speed, than be sure to
> lock it while you are running the shim.
> One way to do that is to install cpufrequtils, which provides 2 tools
> to query and set CPU clock speeds.
> cpufreq-info and cpufreq-set.
>
> Hope this helps.
>
>
>
> Have a GREAT day!
>
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 5 Apr 2013 10:19:37 -0400 (EDT)
> From: R P Herrold <herrold at owlriver.com>
> Subject: [ts-general] Sigh.. ShimText time stamp wrong on different
>         hardware        and more
> To: trading shim general list <ts-general at mail.trading-shim.org>
> Message-ID: <alpine.LRH.2.02.1304050956530.11927 at puneyrf.bjyevire.pbz>
> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>
> On Thu, 4 Apr 2013, David wrote:
>
> > Solved.
> >
> > If you have a CPU that can very it's clock speed, than be sure to
> > lock it while you are running the shim.
>
> Thank you -- varible speed computing sounds icky and I feel
> better having avoided enabling it.  It is curious that I have
> not seen this on virtualized units, as they are swapped in and
> out (long context swiches can happen) which could potentially
> confuse the internal clocks
>
> -- Russ herrold
>
>
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> End of ts-general Digest, Vol 16, Issue 1
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