mersenneforum.org why is http://www.mersenne.org/ so slow
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 2012-04-14, 18:47 #1 Unregistered   32×5×43 Posts why is http://www.mersenne.org/ so slow I burn a lot of CPU cycles for GIMPS, but I am disgusted with the speed of the http://www.mersenne.org/ pages. Unfair standard when you want speed from our computers!
2012-04-14, 20:27   #2
xilman
Bamboozled!

"𒉺𒌌𒇷𒆷𒀭"
May 2003
Down not across

11·971 Posts

Quote:
 Originally Posted by Unregistered I burn a lot of CPU cycles for GIMPS, but I am disgusted with the speed of the http://www.mersenne.org/ pages. Unfair standard when you want speed from our computers!
Almost always works well for me. Sometimes slow, mostly not.

Perhaps you could ask your ISP to see if there's anything wrong with your connection?

 2012-04-14, 21:04 #3 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 3·43·73 Posts No, the OP does have a point - especially in the first minutes of every hour (and we know why). Every once in a while, one can even get the coveted "pnErrorResult=3 pnErrorDetail=Database unavailable ==END==" result, frame it and put it on the wall to adore.
 2012-04-14, 21:18 #4 Dubslow Basketry That Evening!     "Bunslow the Bold" Jun 2011 40
2012-04-14, 21:24   #5
chalsall
If I May

"Chris Halsall"
Sep 2002
Barbados

2×3×5×11×29 Posts

Quote:
 Originally Posted by Batalov No, the OP does have a point - especially in the first minutes of every hour (and we know why). Every once in a while, one can even get the coveted "pnErrorResult=3 pnErrorDetail=Database unavailable ==END==" result, frame it and put it on the wall to adore.
But the OP has a point which should be considered...

Why does PrimeNet sometimes give the "Database unavailable" error message later in the hour, when it's not busy doing summary queries? Or, take a really long time to answer simple queries? Like, for example, it is doing right now.

Resource starvation anyone?

Since PrimeNet is running on WinBlows, wouldn't it make sense to automate a daily reboot?

2012-04-14, 21:34   #6
chalsall
If I May

"Chris Halsall"
Sep 2002
Barbados

2·3·5·11·29 Posts

Quote:
 Originally Posted by Dubslow If you're willing to fund moving the server to more powerful hardware, and/or moving it to some sort of LAMP setup, we'd love to see it .
And let us please identify the elephant in the room...

After GIMPS won $100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened. 2012-04-14, 21:38 #7 Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 722110 Posts Quote:  Originally Posted by chalsall And let us please identify the elephant in the room... After GIMPS won$100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened.
...But like I said, we're a volunteer effort; more to the point, just about everyone here either has a day job and little spare time, or is not capable of re-creating the server in the LAMP environment. (I fall into the second category )
Quote:
 Originally Posted by chalsall Like, for example, it is doing right now.
I just found out what you meant :/

I gave it 30 seconds and hadn't even gotten HTTP headers back as a response.

Last fiddled with by Dubslow on 2012-04-14 at 21:41

2012-04-14, 23:49   #8
petrw1
1976 Toyota Corona years forever!

"Wayne"
Nov 2006
Saskatchewan, Canada

41×113 Posts

Quote:
 Originally Posted by chalsall Why does PrimeNet sometimes give the "Database unavailable" error message later in the hour, when it's not busy doing summary queries?
I had assumed (admittedly without a shred of proof - though it did afford me some comfort believing it) that these were the time our bigger users were doing large results/updates/reservations

2012-04-14, 23:52   #9
petrw1
1976 Toyota Corona years forever!

"Wayne"
Nov 2006
Saskatchewan, Canada

41·113 Posts

Quote:
 Originally Posted by chalsall And let us please identify the elephant in the room... After GIMPS won $100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened. There were a couple posts from George a good year ago on this topic. I vaguely remember it had something to do with George and Scott still trying to come to terms. 2012-04-15, 10:00 #10 ET_ Banned "Luigi" Aug 2002 Team Italia 4,813 Posts Quote:  Originally Posted by chalsall And let us please identify the elephant in the room... After GIMPS won$100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened.
Last year some of us contributed a small money donation to GIMPS, but AFAIK, they are still at 3% of the projected goal.

Luigi

2012-04-15, 15:10   #11
cheesehead

"Richard B. Woods"
Aug 2002
Wisconsin USA

22×3×641 Posts

Quote:
 Originally Posted by chalsall But the OP has a point which should be considered... Why does PrimeNet sometimes give the "Database unavailable" error message later in the hour, when it's not busy doing summary queries? Or, take a really long time to answer simple queries? Like, for example, it is doing right now.
I, too, started noticing a few days ago that responses from mersenne.org were slow even when not in the first 7-8 minutes of each hour.

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