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Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU
From: |
Johnathan Corgan |
Subject: |
Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU |
Date: |
Fri, 12 Dec 2008 08:53:44 -0800 |
On Fri, Dec 12, 2008 at 8:19 AM, Bob McGwier <address@hidden> wrote:
> To be completely honest, I have never understood the gain to us provided by
> the COST the single threaded scheduler imposed. I cannot find the service
> the single thread scheduler provides that cannot be done more easily and
> with much greater efficiency in the TPB or even before in a simpler worker
> thread pool thing but I am sure this is my ignorance.
The default is to use the thread-per-block scheduler. It is almost
always better than the single-threaded scheduler, but there are some
pathological cases where it isn't. One case is where there are simply
too many blocks, as in the case of the wideband gr-pager receiver.
This application creates ~1500 blocks as it is simultaneously decoding
120 FSK channels across 3 MHz. This can exhaust resources in some
environments.
> Of course, it is easy
> to criticize when I did not write it and when the author is in the middle of
> the Atlantic with a torn sail limping home (take it easy, he was 30 nm from
> the end at 7 this morning)!
Boo hoo. Sailing the Atlantic for several weeks, fresh salt air
breezes, beautiful sunrises and sunsets, the physical workout--I'm
having a hard time feeling sympathy for a torn sail :)
> I would prefer to have enabled and know how to set this in the config file
> than to have environment variables alone.
Again, the tpb is the default; you've already been using it.
-Johnathan
- [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Marcus D. Leech, 2008/12/10
- RE: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Bob McGwier, 2008/12/10
- Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Marcus D. Leech, 2008/12/10
- Message not available
- Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Marcus D. Leech, 2008/12/12
- Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Johnathan Corgan, 2008/12/15
- Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Jing Cao, 2008/12/27
- Re: [Discuss-gnuradio] Upgrade (downgrade?) to a Q6600 CPU, Johnathan Corgan, 2008/12/28