Impact of S@H enhanced on Berkeley server load?
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Impact of S@H enhanced on Berkeley server load?
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 Speedy67 & Friends  Send message Joined: 14 Jul 99 Posts: 335 Credit: 1,178,138 RAC: 0 
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Maybe someone at Berkeley could give an indication on this question? The servers were barely keeping up before seti@home enhanced was released.... seems to me it must be a big load-reduction already! Greetings, Sander  
ID: 319562 ·  |
John Clark  Send message Joined: 29 Sep 99 Posts: 16515 Credit: 4,418,829 RAC: 0 
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Although the Cogent Link still shows a good level of use, the SETI Server Status page now shows a number of major changes - * Results ready to send hovering steadily at 550K to 650K; down from 1.1 million * Results creaion seem to average ~8.5WUs/sec; down from over 18 * Results in progress steady at about 1..1 million; down from 2.7 million In all respects the introduction of Enhanced has reduced the load on the servers by nearly 50%, or, perhaps, more. It's good to be back amongst friends and colleagues  
ID: 319574 · |
Fuzzy Hollynoodles  Send message Joined: 3 Apr 99 Posts: 9659 Credit: 251,998 RAC: 0 |
This is good news. :-D "I'm trying to maintain a shred of dignity in this world." - Me 
ID: 319911 · |
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Metod, S56RKO Send message Joined: 27 Sep 02 Posts: 309 Credit: 113,221,277 RAC: 9 
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Although the Cogent Link still shows a good level of use Also Cogent link has been releived a bit - it went down from 40Mbps+ to about 20Mbps. Metod ... 
ID: 319943 · |
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Clyde C. Phillips, III Send message Joined: 2 Aug 00 Posts: 1851 Credit: 5,955,047 RAC: 0 
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So, in a nutshell, traffic has been halved by Enhanced. I wonder if there are any non-Enhanced yet being crunched (?) ID: 320160 · |
WendyR  Send message Joined: 1 Aug 05 Posts: 44 Credit: 1,962,140 RAC: 0
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So, in a nutshell, traffic has been halved by Enhanced. I wonder if there are any non-Enhanced yet being crunched (?) There are at least some left out there. My husband's computer still has about a dozen that are waiting for someone (else) to return results. About 2/3 of those are waiting for this computer. Didn't check to see what percentage of this host's 200+ units are "old" and which are enhanced units. Of those that I did look at (maybe a dozen), I found 2 "old" units that were waiting on 2 computers. So, there are definately still a few but most will probably reach their due date in the next couple of days. Some of those might get resent out, but most of them have probably reached their quorum and will be deleted after those straggler's time out. ID: 320177 · |
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Patrick Fowler Send message Joined: 3 Jun 99 Posts: 3 Credit: 6,264 RAC: 0 
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fewer users = less load http://bluenorthernsoftware.com/scarecrow/sahstats/activeusers.html ID: 320199 · |
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John Clark Send message Joined: 29 Sep 99 Posts: 16515 Credit: 4,418,829 RAC: 0
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So, in a nutshell, traffic has been halved by Enhanced. I wonder if there are any non-Enhanced yet being crunched (?) The effects of Enhanced can be seen on those crunchers with large RACs. These have mostly gone down by at least 35% and in many cases by over 50%. This is due to the lower credit per hour given and the calculations on the average RAC. It is my belief that the RAC will settle a little above 50% of the one produced by the 4.18 client. It's good to be back amongst friends and colleagues
ID: 320341 · |
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KWSN Sir Clark Send message Joined: 17 Aug 02 Posts: 139 Credit: 1,002,493 RAC: 8
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fewer users = less load It looks like there's been a mass exodus but I'm sure it's the number of hosts connecting per day :) If it really has dropped by 6000 connections that's good news for the SETI servers as already shown. If I'm completely wrong and it's users leaving SETI, that's rather unfortunate ID: 320394 · |
The MariahNet Network  Send message Joined: 14 Jul 99 Posts: 173 Credit: 2,469,357 RAC: 0
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I over heard a couple people mention at work that they know about a dozen of their friends have stopped running SETI@Home because of all the problems they had. One mentioned having to do an "enhanced reformat" for their hard drive. I have no idea what that means. As for me, SETI keeps crashing/rebooting my computer when nothing is even running; aka windows safe mode, but just SETI running. Once I'm done with this one work unit, this one computer of mine is outtie. And I most likely will pull out all together once I can UPLOAD all my work! That's probably another reason why uploads should be kept down and not working, but only to allow work units to be uploaded that are about to hit the deadline. LOL TRICKY trick to trick tricked users tricking tricks with tricky tricks during tricky times that are tricky!!!* ROFL!!! * humor... laugh ID: 320463 · |
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1mp0£173 Send message Joined: 3 Apr 99 Posts: 8423 Credit: 356,897 RAC: 0
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fewer users = less load I don't know if there is a way to measure this short of just waiting for the stats, but at least in theory there have to be a number of the really long work units out there -- the ones with 2 month deadlines. Those machines aren't going to check in for a while, so the stats sites may see them as "gone" -- once there has been time to "fill the pipeline" that may go away. Then again, there are lies, damn lies, and in this case, statistics. ID: 320946 · |
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Alinator Send message Joined: 19 Apr 05 Posts: 4178 Credit: 4,647,982 RAC: 0
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LOL, ain't that the truth! :-) Alinator ID: 320955 · |
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Swibby Bear Send message Joined: 1 Aug 01 Posts: 246 Credit: 7,945,093 RAC: 0
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Scarecrow's graphs seem to have disappeared. I hope this isn't permanent. They are (were) great graphs. As for crunching, this old computer was producing about 3 results per day using Crunch3r's 4.18 optimized app. Now, it is taking about 22 hours to do a single enhanced result, using Crunch3r's optimized 5.12 app. Crunch3r, you are thanked and missed by many, and so are your optimizations. If you feel you must leave Seti and stay away, we have to respect your decision. However, it would be appreciated by many if you would again make available the optimized apps and clients for download. It would be unfortunate to lose the fruits of all your labors over recent years. It would be such a waste. Thanks for reconsidering this. Whit ID: 329489 · |
Synister1  Send message Joined: 26 Jan 03 Posts: 20 Credit: 742,293 RAC: 5
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[quote] Try going higher. I'm seeing a 72% loss.... My P4 had a RAC of 950 before the upgrade to enhanced, it now has a RAC of 230. The processing time went from 41 minutes to almost 6 hours. With those losses I'm not going to move my x64 machine over. I'm betting a good deal of the lost traffic were people who decided the same thing. Theres a Fine Line between Hobby and Mental Illness. ID: 329513 · |
W-K 666  Send message Joined: 18 May 99 Posts: 20078 Credit: 40,757,560 RAC: 67
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Scarecrow's graphs seem to have disappeared. I hope this isn't permanent. They are (were) great graphs. I can still see Scarecrow's graphs Andy ID: 329520 · |
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Mark A. Craig Send message Joined: 16 Jan 01 Posts: 71 Credit: 103,077 RAC: 0
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I've seen a loss of about 36% from a high of about 910. My RAC had still been climbing at that point, so the eventual "stable" RAC (if there is such a thing) might have been a bit higher than that. Currently it's down to about 580. Prior to Enhanced I was using Crunch3r's optimized SSE3 app on my A64 3000+ and the optimized SSE app on my (OC'ed) XP 2500+. There's no question that they made the systems more productive and consequently worked them harder, too. I was using the optimized clients along with those, because that seemed necessary to maintain proportional values to credit, but that never seemed to be the case. The claimed and granted credits I got back then were consistently below the magic value of 32 that I'd heard was the baseline; they'd get somewhere between 15 and 25 most of the time. Of course the systems were getting more work done, so there was some compensation, but none of it ever made sense to me. I felt the system should have been much more transparent. Currently I'm still using the last 5.12/5.5.0 optimized software, but as you can see it's doing little if anything to offset the irrepressible slide. I'm trying really hard not to care, reminding myself that it's only abstract numbers and that indeed nothing tangible has been taken from me, but still.... Mark ID: 329546 · |
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Swibby Bear Send message Joined: 1 Aug 01 Posts: 246 Credit: 7,945,093 RAC: 0
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Scarecrow's graphs seem to have disappeared. I hope this isn't permanent. They are (were) great graphs. Ah, yes! I now see that the graphs are back. I guess Scarecrow was doing some maintenance on them. Thanks, Andy ID: 329707 · |
[SETI.USA] OneChicken  Send message Joined: 3 Apr 04 Posts: 70 Credit: 906,887 RAC: 0
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I don't know if losing users is a SETI@HOME-only phenomenon or something else (even with all of the recent issues). If you look at any of the larger projects on BOINC STATS (Einstein, Predictor, etc...), you'll see that they've had a drop in active participants as well (almost at the same rate). I believe that as they add new projects to the BOINC grouping of projects, users are diversifying their crunching to a larger extent than ever before. As they do this, there is just not enough BOINC users to sustain the level of activity S@H once had. Basically the S@H project is becoming a victim of BOINC's success. As these users crunch for these other projects, the BOINC community is not adding new users at a fast enough rate to keep the same level of active users on all projects (at least not what they were). Because of this trend to crunch elsewhere, we're actualy seeing a drain of active users on the larger/more popular projects. If you look at some of the other smaller/newer projects, you'll see that they're gaining new members andhave a high percentage of active users at this point in time. I don't know if this is true or not, but a theory is usually put out for the sole purpose of motivating others into to action to disprove it. [edit]typos[/edit]  Proud member of SETI.USA ID: 329737 · |
nick  Send message Joined: 22 Jul 05 Posts: 284 Credit: 3,902,174 RAC: 0
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i think that is has reduceded it to a piont where they could start turning some of the severs off nick  
ID: 332821 · |
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