Discrepancy in Stats

m.mitch
m.mitch
Joined: 11 Feb 05
Posts: 187
Credit: 3,558,418
RAC: 19,925

RE: These pages are not

Message 24906 in response to message 24899

Quote:

These pages are not generated on-the-fly, but pregenerated at
distinct intervals, AFAIK.

Michael

Given that (which is very reasonable), shouldn't the users "Total" field still carry the same information? Unless there is an error in the DB, it "should" be, same field, differant place. Yes?

Bruce Allen
Bruce Allen
Moderator
Joined: 15 Oct 04
Posts: 1,115
Credit: 172,127,663
RAC: 0

The reason why the numbers in

The reason why the numbers in the RAC and total credit columns differ depending upon which column is used for sorting is very simple. The two pages, with the different sort orders, are SEPARATE pages, which are not computed at the same instant. They are typically precomputed a few seconds or minutes apart, and then cached on our server. So for volunteers with large numbers of computers, or teams with large numbers of members, the RAC and total credit numbers change fast enough that the difference is noticable even after a few seconds or minutes.

Cheers,
Bruce

Director, Einstein@Home

m.mitch
m.mitch
Joined: 11 Feb 05
Posts: 187
Credit: 3,558,418
RAC: 19,925

RE: Must be something going

Message 24908 in response to message 24902

Quote:

Must be something going on or a lack thereof. For the first time since I signed up over a month ago, all of my machines are reporting exactly the same number 55653.72. I haven't seen an update since this AM. Oh well, at least it appears the data was uploaded.

F. Prefect

Oh. Thank you Ford. I may not have made it clear. I did all my testing on the one PC.

OT NOTE: 42 had a rounding error! © Mike Mitchell

m.mitch
m.mitch
Joined: 11 Feb 05
Posts: 187
Credit: 3,558,418
RAC: 19,925

RE: The reason why the

Message 24909 in response to message 24907

Quote:

The reason why the numbers in the RAC and total credit columns differ depending upon which column is used for sorting is very simple. The two pages, with the different sort orders, are SEPARATE pages, which are not computed at the same instant. They are typically precomputed a few seconds or minutes apart, and then cached on our server. So for volunteers with large numbers of computers, or teams with large numbers of members, the RAC and total credit numbers change fast enough that the difference is noticable even after a few seconds or minutes.

Cheers,
Bruce

I understand now! It's not the DB. It's in the pre-prepared HTML (or similar), cached and then called up by a confused me. Still pressing F5 8-).
My brain doesn't hurt so much now!

Thankyou Bruce

Andy Fowles
Andy Fowles
Joined: 12 Dec 05
Posts: 1
Credit: 13,133,962
RAC: 0

Sorry to ask and appear

Sorry to ask and appear stupid guys....but would the above explain why when looking at my PC (in my accounts page on Einstein) it got granted credit for 3 results today (1 still pending) on Boincstats (& Mundayweb) it only shows granted the 38.16 cobblestones for one result?

17806122 4594951 11 Feb 2006 11:01:39 UTC 13 Feb 2006 17:20:38 UTC Over Success Done 17,831.20 45.44 pending

17782114 4587269 11 Feb 2006 4:00:22 UTC 13 Feb 2006 12:34:18 UTC Over Success Done 18,466.30 47.05 47.05

17749541 4576936 10 Feb 2006 22:39:37 UTC 13 Feb 2006 7:11:29 UTC Over Success Done 18,415.97 46.93 38.16

17729143 4570484 10 Feb 2006 17:37:07 UTC 13 Feb 2006 1:47:37 UTC Over Success Done 18,415.25 46.92 46.94

Can someone explain this?

[edit]To remove typo's[/edit]

DanNeely
DanNeely
Joined: 4 Sep 05
Posts: 1,358
Credit: 2,809,877,675
RAC: 2,688,890

Your PC, and account page are

Your PC, and account page are updated in realtime as credit is granted. The data the stats pages use is a table computed once or twice/day and is always behind your upto the minute values as a result.

Jordan Wilberding
Jordan Wilberding
Joined: 19 Feb 05
Posts: 162
Credit: 715,454
RAC: 0

I thought there was a 6

Message 24912 in response to message 24911

I thought there was a 6 minute delay?

Quote:
Your PC, and account page are updated in realtime as credit is granted. The data the stats pages use is a table computed once or twice/day and is always behind your upto the minute values as a result.


such things just should not be writ so please destroy this if you wish to live 'tis better in ignorance to dwell than to go screaming into the abyss worse than hell

DanNeely
DanNeely
Joined: 4 Sep 05
Posts: 1,358
Credit: 2,809,877,675
RAC: 2,688,890

I've seen results reflected

I've seen results reflected on my einstien page within a minute of hitting the update button in boinc. It might not be RT to the OS writing folks, but it's close enough for me.

m.mitch
m.mitch
Joined: 11 Feb 05
Posts: 187
Credit: 3,558,418
RAC: 19,925

RE: Sorry to ask and appear

Message 24914 in response to message 24910

Quote:

Sorry to ask and appear stupid guys....but would the above explain why when looking at my PC (in my accounts page on Einstein) it got granted credit for 3 results today (1 still pending) on Boincstats (& Mundayweb) it only shows granted the 38.16 cobblestones for one result?

17806122 4594951 11 Feb 2006 11:01:39 UTC 13 Feb 2006 17:20:38 UTC Over Success Done 17,831.20 45.44 pending

17782114 4587269 11 Feb 2006 4:00:22 UTC 13 Feb 2006 12:34:18 UTC Over Success Done 18,466.30 47.05 47.05

17749541 4576936 10 Feb 2006 22:39:37 UTC 13 Feb 2006 7:11:29 UTC Over Success Done 18,415.97 46.93 38.16

17729143 4570484 10 Feb 2006 17:37:07 UTC 13 Feb 2006 1:47:37 UTC Over Success Done 18,415.25 46.92 46.94

Can someone explain this?

[edit]To remove typo's[/edit]

Andy,
The question isn't stupid, it's reasonable to want to learn.
The stats pages you asked about are run by other people on different computers and have no direct connection to the computers that the project is run on. The stats pages for mundayweb are updated once a day. Boincstats is probably similar.
Einstein, like most of the BOINC projects, creates special files for the stats pages to read and update their own pages.
These special files (xml files) are not created by the projects in real time. They may be updated every few minutes to, say, once a day, depending on project resources.
This would explain why there is a long period between returning a result and it appearing in stats pages.
One last bit, some credit will be at the tail end of each step, so it could take that portion of credit two to three days to get through. Provided al the computers and connections stay in place.

Odysseus
Odysseus
Joined: 17 Dec 05
Posts: 372
Credit: 15,061,828
RAC: 8,616

RE: The stats pages you

Message 24915 in response to message 24914

Quote:

The stats pages you asked about are run by other people on different computers and have no direct connection to the computers that the project is run on. The stats pages for mundayweb are updated once a day. Boincstats is probably similar.

If you go to any of the BOINCstats pages, on the left-hand sidebar there's a section that indicates exactly when each area of their database was last updated; they seem to do several partial or incremental updates from the daily stats-dump. On a couple of occasions I've seen discrepancies between tables and graphs in the same display, as the numbers get pulled from various parts of the database. As long as the figures are no more than a day or two old, I'm happy. Comparing the differences between sources of stat reports to my pending credit puts it in perspective.

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