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Author Topic: 3% faster mining with phoenix+phatk for everyone  (Read 35382 times)
bitless
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June 27, 2011, 10:10:15 PM
 #101

my GPU usage (and thus hashrate) has always fluctuated like a small sine wave from 99% - 90% , after this patch, they all stay a straight line 99% , so that's way more than a 3% increase in hashrate for me.
What's weird, mine went from 90%-96% to 96% straight but the added performance adds 1.5C to the temperature, I might have to clock down a bit to get tot he previous 90C stable line, which means I am forfeiting the benefits of the above optimization. At least I use less energy, the Earth will thank us all...

Same here, actually. I was ok with 6870 overclocked to 1000 MHz, but after the change it became unstable so I had to go down to 975, which is kinda sad. Yet, I blame it on poor ventilation in my case, so may be I'll get it running at 1000 again, eventually Smiley
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June 27, 2011, 11:12:32 PM
 #102

Just tossing my confirmations out there:

Sapphire 5830s:

Pair 1:  264 Mhash/sec -> 271 Mhash/sec (each) at 875 MHz GPU, 900 MHz RAM (2.58% increase)
Pair 2:  273 Mhash/sec -> 281 Mhash/sec (each) at 900 MHz GPU, 600 MHz RAM (2.84% increase)

I'm also tracking Rejected shares.

Before Patch:
Pair 1:  ~2.6% rejects (after 800+ shares)
Pair 2:  ~3.2% rejects (after 800+ shares)

After Patch:
Pair 1:  ~3.0% rejects (after 650+ shares)
Pair 2:  ~4.0% (after 750+ shares)

So, the increase appears to also cause additional rejects that should be discounted from total increase gain, cutting it down a full 1% in my case.

Bitless, sent my donation to you as well.  Thank you for sharing your findings, giving to the community is what this should be about.  There will be plenty of time for profits later, here's to hoping you'll be adequately rewarded for your finding and work.

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bitless
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June 27, 2011, 11:27:44 PM
 #103

Bitless, sent my donation to you as well.  Thank you for sharing your findings, giving to the community is what this should be about.  There will be plenty of time for profits later, here's to hoping you'll be adequately rewarded for your finding and work.

Thanks a lot! I hope you'll figure out the issues that you've having with your mining after the patch. If I think of anything that can be of help, I'll post it too.
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June 27, 2011, 11:57:53 PM
 #104

I got ~10mhs increase on my 5870's and surprisingly my stale rate actually is a LOT LOT lower then before the mod.

I will certainly be donating as soon as I have some cleared funds bitless, thank you so much for your hard work and I look forward to your next modification you speak of previously. (Do you have any more details on that atm?)

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June 28, 2011, 12:15:09 AM
 #105

I got ~10mhs increase on my 5870's and surprisingly my stale rate actually is a LOT LOT lower then before the mod.

I will certainly be donating as soon as I have some cleared funds bitless, thank you so much for your hard work and I look forward to your next modification you speak of previously. (Do you have any more details on that atm?)

Everything that I've heard so far suggests that the stale rate is completely unrelated to the mod - it is somewhat random (esp. given that hdminer uses something that's equivalent to the mod as well). However, I'm glad that it is low for you at the moment.

No, I don't have any ETA on other modifications. They are complex and may never materialize into code... in which case I'll just post my thoughts on the subject.

Thanks for the donation! Smiley

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June 28, 2011, 12:56:15 AM
 #106

Yup worked for me exactly as you said. My 6870 went from 300 to 308. Thanks!
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June 28, 2011, 01:33:27 AM
 #107

Yup worked for me exactly as you said. My 6870 went from 300 to 308. Thanks!
It definitely worked for my 5830! Awesome thanks a bunch bitless Smiley

Looking to review Bitcoin / Crypto mining Hardware.
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June 28, 2011, 01:55:55 AM
 #108

This community is awesome.  Nice little speed boost.  I'm at the ragged edge on core voltage and clock speeds, so this boost was very cool!
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June 28, 2011, 02:01:17 AM
 #109

Thanks for sharing, it worked well for me.

AB

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June 28, 2011, 05:08:23 AM
 #110

my GPU usage (and thus hashrate) has always fluctuated like a small sine wave from 99% - 90% , after this patch, they all stay a straight line 99% , so that's way more than a 3% increase in hashrate for me.
What's weird, mine went from 90%-96% to 96% straight but the added performance adds 1.5C to the temperature, I might have to clock down a bit to get tot he previous 90C stable line, which means I am forfeiting the benefits of the above optimization. At least I use less energy, the Earth will thank us all...

Same here, actually. I was ok with 6870 overclocked to 1000 MHz, but after the change it became unstable so I had to go down to 975, which is kinda sad. Yet, I blame it on poor ventilation in my case, so may be I'll get it running at 1000 again, eventually Smiley

Just run the card with open Case.
Also a good improvement is add 2x 120mm 10db-Silent Fans, that cool your card more Silent.

I run my 6870 @ 1005Mhz , 60 degrees Celsius , 60% Fanssped (card fan) @ 302Mhash/s.
(now with speedfix @ 311Mhash)

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June 28, 2011, 05:12:30 AM
 #111

Thanks for sharing, it worked great for me. About 2.5% it looks like!
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June 28, 2011, 06:03:00 AM
 #112

How does one get an accurate reading of their rates? My rates seem to jump randomly between 363 to 367 on one of my 5850 and 361 to 364 on my other 5850. Should they both be the same? Should they be jumping this much?
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June 28, 2011, 09:49:17 AM
 #113

How does one get an accurate reading of their rates? My rates seem to jump randomly between 363 to 367 on one of my 5850 and 361 to 364 on my other 5850. Should they both be the same? Should they be jumping this much?

I run headless w/ aggression=19, so my hash rate is  pretty stable.

[Selling] Delta 120mm Fans 130CFM 3 Pin w/ 3 pin to 4 pin molex + fan screws
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June 28, 2011, 10:35:57 AM
 #114

Wow, have to try, thanks for sharing.  Smiley
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June 28, 2011, 11:51:35 AM
 #115

How does one get an accurate reading of their rates? My rates seem to jump randomly between 363 to 367 on one of my 5850 and 361 to 364 on my other 5850. Should they both be the same? Should they be jumping this much?
It depends on the mining software you use.
I use phoenix and it by default averages every 10, so I increased this (-a 50). It takes longer to settle down, but once there it will not jump about as much.

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June 28, 2011, 12:53:21 PM
 #116

How does one get an accurate reading of their rates? My rates seem to jump randomly between 363 to 367 on one of my 5850 and 361 to 364 on my other 5850. Should they both be the same? Should they be jumping this much?
-r 3
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June 28, 2011, 01:46:52 PM
 #117

my GPU usage (and thus hashrate) has always fluctuated like a small sine wave from 99% - 90% , after this patch, they all stay a straight line 99% , so that's way more than a 3% increase in hashrate for me.
What's weird, mine went from 90%-96% to 96% straight but the added performance adds 1.5C to the temperature, I might have to clock down a bit to get tot he previous 90C stable line, which means I am forfeiting the benefits of the above optimization. At least I use less energy, the Earth will thank us all...

Same here, actually. I was ok with 6870 overclocked to 1000 MHz, but after the change it became unstable so I had to go down to 975, which is kinda sad. Yet, I blame it on poor ventilation in my case, so may be I'll get it running at 1000 again, eventually Smiley

That means your 1000 MHz core wasn't actually stable to begin with, but you were getting by because it wasn't being used fully.  After the patch it's getting fully loaded which puts more stress on it; Because of that, at 975 MHz with the new patch you might still be getting a higher overall hashrate than before the patch at 1000 MHz

All rates with Phoenix 1.50 / PhatK
------------------------------------------------------------------------------------------------------------------------------
5850 - 400 MH/s  |  5850 - 355 MH/s | 5830 - 310 MH/s  |  GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
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June 28, 2011, 01:48:15 PM
 #118

5870

970\365

430,5 -> 439,4 ~2.07%

W7x64 SP1, Phoenix 1.5 + Phatk, APP 2.4, Catalyst 11.6

 Grin

THANX A LOT

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June 28, 2011, 01:59:36 PM
 #119

Worked for me as well. Thanks.
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June 28, 2011, 02:09:37 PM
 #120

OC'd 6970 went from 400 to 417MHash/s. Sent some mBTC your way!

Join the Bitcoin Developer Charity Pool!
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